Publications

Publications at Social Computing Group

2024

M3BAT: Unsupervised Domain Adaptation for Multimodal Mobile Sensing with Multi-Branch Adversarial Training

L. Meegahapola; H. Hassoune; D. Gatica-Perez 

Proceedings Of The Acm On Interactive Mobile Wearable And Ubiquitous Technologies-Imwut. 2024-05-01. Vol. 8, num. 2, p. 46. DOI : 10.1145/3659591.

Content Moderation in Online Platforms

M. Horta Ribeiro / R. West (Dir.)  

Lausanne, EPFL, 2024. 

Robot Learning using Tensor Networks

S. N. Shetty / D. Gatica-Perez; S. Calinon (Dir.)  

Lausanne, EPFL, 2024. 

Advancing Self-Supervised Deep Learning for 3D Scene Understanding

S. M. M. Johari / F. Fleuret; D. Gatica-Perez (Dir.)  

Lausanne, EPFL, 2024. 

ProGAP: Progressive Graph Neural Networks with Differential Privacy Guarantees

S. Sajadmanesh; D. Gatica-Perez 

2024-01-01. 17th ACM International Conference on Web Search and Data Mining (WSDM), Merida, MEXICO, MAR 04-08, 2024. p. 596-605. DOI : 10.1145/3616855.3635761.

Hearing structure in music: An empirical inquiry into listening as representation and processing

G. Cecchetti / M. A. Rohrmeier; S. A. Herff (Dir.)  

Lausanne, EPFL, 2024. 

Understanding and Enhancing Digital Wellbeing Dimensions: Empirical Studies on Smartphone Usage Patterns and Recommendations of Micro-Informative Content

R. Islambouli / D. Gillet; S. Ingram (Dir.)  

Lausanne, EPFL, 2024. 

Generalization and Personalization of Machine Learning for Multimodal Mobile Sensing in Everyday Life

L. B. Meegahapola / D. Gatica-Perez (Dir.)  

Lausanne, EPFL, 2024. 

2023

Understanding the Social Context of Eating with Multimodal Smartphone Sensing: The Role of Country Diversity

N. Kammoun; L. Meegahapola; D. Gatica-Perez 

2023-01-01. 25th International Conference on Multimodal Interaction (ICMI), Paris, FRANCE, OCT 09-13, 2023. p. 604-612. DOI : 10.1145/3577190.3614129.

Keep Sensors in Check: Disentangling Country-Level Generalization Issues in Mobile Sensor-Based Models with Diversity Scores

A. Nanchen; L. Meegahapola; W. Droz; D. Gatica-Perez 

2023-01-01. AAAI/ACM Conference on Artificial Intelligence, Ethics, and Society (AIES), Montreal, CANADA, AUG 08-10, 2023. p. 217-228. DOI : 10.1145/3600211.3604688.

Referencing in YouTube Knowledge Communication Videos

H. Kim; D. Gatica-Perez 

2023-01-01. ACM International Conference on Interactive Media Experiences (IMX), Nantes, FRANCE, JUN 12-15, 2023. p. 60-70. DOI : 10.1145/3573381.3596163.

GAP: Differentially Private Graph Neural Networks with Aggregation Perturbation

S. Sajadmanesh; A. S. Shamsabadi; A. Bellet; D. Gatica-Perez 

2023-01-01. 32nd USENIX Security Symposium, Anaheim, CA, AUG 09-11, 2023. p. 3223-3240.

Diversity and neocolonialism in Big Data research: Avoiding extractivism while struggling with paternalism

P. Helm; A. de Gotzen; L. Cernuzzi; A. Hume; S. Diwakar et al. 

Big Data & Society. 2023-07-01. Vol. 10, num. 2, p. 20539517231206802. DOI : 10.1177/20539517231206802.

Complex Daily Activities, Country-Level Diversity, and Smartphone Sensing: A Study in Denmark, Italy, Mongolia, Paraguay, and UK

K. Assi; L. Meegahapola; W. Droz; P. Kun; A. de Gotzen et al. 

2023-01-01. CHI conference on Human Factors in Computing Systems (CHI), Hamburg, GERMANY, APR 23-28, 2023. p. 506. DOI : 10.1145/3544548.3581190.

Framing the News: From Human Perception to Large Language Model Inferences

D. A. del Barrio; D. Gatica-Perez 

2023-01-01. ACM International Conference on Multimedia Retrieval (ICMR), Thessaloniki, GREECE, JUN 12-15, 2023. p. 627-635. DOI : 10.1145/3591106.3592278.

Privacy-Preserving Machine Learning on Graphs

S. Sajadmanesh / D. Gatica-Perez (Dir.)  

Lausanne, EPFL, 2023. 

Examining European Press Coverage of the Covid-19 No-Vax Movement: An NLP Framework

D. A. del Barrio; D. Gatica-Perez 

2023-01-01. 2nd ACM International Workshop on Multimedia AI against Discrimination (MAD), Thessaloniki, GREECE, Jun 12, 2023. p. 52-59. DOI : 10.1145/3592572.3592845.

Text Representation Learning for Low Cost Natural Language Understanding

J. F. J. F. Mai / D. Gatica-Perez; J. Henderson (Dir.)  

Lausanne, EPFL, 2023. 

Interpretable Representation Learning and Evaluation for Abstractive Summarization

A. T. Marfurt / D. Gatica-Perez; J. Henderson (Dir.)  

Lausanne, EPFL, 2023. 

2022

Explore, engage, empower: methodological insights into a transformative mixed methods study tackling the COVID-19 lockdown

L. Fritz; U. Vilsmaier; G. Clément; L. Daffe; A. Pagani et al. 

Humanities and Social Sciences Communications. 2022-05-17. Vol. 9, num. 175. DOI : 10.1057/s41599-022-01197-2.

How Did Europe’s Press Cover Covid-19 Vaccination News? A Five-Country Analysis

D. A. del Barrio; D. Gatica-Perez 

2022-01-01. 1st ACM International Workshop on Multimedia AI against Disinformation (MAD), Newark, NJ, JUN 27-30, 2022. p. 35-43. DOI : 10.1145/3512732.3533588.

Focus on People: Five Qestions from Human-Centered Computing

D. Gatica-Perez 

2022-01-01. 24th ACM International Conference on Multimodal Interaction (ICMI), Bangalore, INDIA, NOV 07-11, 2022. p. 3-3. DOI : 10.1145/3536221.3565371.

Generalization and Personalization of Mobile Sensing-Based Mood Inference Models: An Analysis of College Students in Eight Countries

L. Meegahapola; W. Droz; P. Kun; A. de Goetzen; C. Nutakki et al. 

Proceedings Of The Acm On Interactive Mobile Wearable And Ubiquitous Technologies-Imwut. 2022-12-01. Vol. 6, num. 4. DOI : 10.1145/3569483.

Characterizing Swiss Alpine Lakes: from Wikipedia to Citizen Science

Y. Lin 

2022.

Computational Approaches for Studying Dietary Behaviors with Digital Traces

K. Gligoric / R. West (Dir.)  

Lausanne, EPFL, 2022. 

A systems approach towards remote health-monitoring in older adults: Introducing a zero-interaction digital exhaust

N. Schutz; S. E. J. Knobel; A. Botros; M. Single; B. Pais et al. 

Npj Digital Medicine. 2022-08-16. Vol. 5, num. 1, p. 116. DOI : 10.1038/s41746-022-00657-y.

Data Privacy Concerns as a Source of Resistance to Complete Mobile Data Collection Tasks Via a Smartphone App

C. Roberts; J. M. E. Herzing; J. S. Piazza; P. Abbet; D. Gatica-Perez 

Journal Of Survey Statistics And Methodology. 2022-06-17. DOI : 10.1093/jssam/smac018.

A Sensor-Driven Visit Detection System in Older Adults’ Homes: Towards Digital Late-Life Depression Marker Extraction

N. Schutz; A. Botros; S. Ben Hassen; H. Saner; P. Buluschek et al. 

Ieee Journal Of Biomedical And Health Informatics. 2022-04-01. Vol. 26, num. 4, p. 1560-1569. DOI : 10.1109/JBHI.2021.3114595.

Sensing Eating Events in Context: A Smartphone-Only Approach

L. Meegahapola; W. Bangamuarachchi; A. Chamantha; S. Ruiz-Correa; I. Perera et al. 

IEEE Access. 2022-06-03. Vol. 10, p. 61249-61264. DOI : 10.1109/ACCESS.2022.3179702.

2021

Trust Indicators and Explainable AI: A Study on User Perceptions

D. Ribes; N. Henchoz; H. Portier; L. Defayes; T-T. Phan et al. 

2021-05-14. 18th IFIP TC 13 International Conference, Bari, Italy, 30 August – 3 September, 2021. p. 662-671. DOI : 10.1007/978-3-030-85616-8_39.

The impact of personality in using technology to ask and offer help: the experience of the Chatbot “UC – Paraguay”

J. L. Zarza; A. Hume; L. Cernuzzi; D. Gatica-Perez; I. Bison 

2021-01-01. 47th Latin American Computing Conference (CLEI), Cartago, COSTA RICA, Oct 25-29, 2021. DOI : 10.1109/CLEI53233.2021.9640147.

Locally Private Graph Neural Networks

S. Sajadmanesh; D. Gatica-Perez 

2021-01-01. ACM SIGSAC Conference on Computer and Communications Security (ACM CCS), ELECTR NETWORK, Nov 15-19, 2021. p. 2130-2145. DOI : 10.1145/3460120.3484565.

The Theory, Practice, and Ethical Challenges of Designing a Diversity-Aware Platform for Social Relations

L. Schelenz; I. Bison; M. Busso; A. de Gotzen; D. Gatica-Perez et al. 

2021-01-01. 4th AAAI/ACM Conference on AI, Ethics, and Society (AIES), ELECTR NETWORK, May 19-21, 2021. p. 905-915. DOI : 10.1145/3461702.3462595.

Online Dating Quantification Practices: A Human-Machine Learning Process

J. C. Pidoux / D. Gatica-Perez; D. G. L. Boullier (Dir.)  

Lausanne, EPFL, 2021. 

Contactless Sleep Monitoring for Early Detection of Health Deteriorations in Community-Dwelling Older Adults: Exploratory Study

N. Schutz; H. Saner; A. Botros; B. Pais; V. Santschi et al. 

Jmir Mhealth And Uhealth. 2021-06-11. Vol. 9, num. 6, p. e24666. DOI : 10.2196/24666.

Ten seconds of my nights: Exploring methods to measure brightness, loudness and attendance and their associations with alcohol use from video clips

F. Labhart; S. Muralidhar; B. Masse; L. Meegahapola; E. Kuntsche et al. 

Plos One. 2021-04-28. Vol. 16, num. 4, p. e0250443. DOI : 10.1371/journal.pone.0250443.

Guidelines for the use and interpretation of assays for monitoring autophagy (4th edition)

D. J. Klionsky; A. K. Abdel-Aziz; S. Abdelfatah; M. Abdellatif; A. Abdoli et al. 

Autophagy. 2021-01-01. Vol. 17, num. 1, p. 1-382. DOI : 10.1080/15548627.2020.1797280.

Explainable Phonology-based Approach for Sign Language Recognition and Assessment

S. Tornay / D. Gatica-Perez; M. Magimai Doss (Dir.)  

Lausanne, EPFL, 2021. 

One More Bite? Inferring Food Consumption Level of College Students Using Smartphone Sensing and Self-Reports

L. B. Meegahapola; S. Ruiz-Correa; V. del Carmen Robledo-Valero; E. E. Hernandez-Huerfano; L. Alvarez-Rivera et al. 

2021. DOI : 10.1145/3448120.

Declarative Variables in Online Dating: A Mixed-Method Analysis of a Mimetic-Distinctive Mechanism

J. Pidoux; P. Kuntz; D. Gatica-Perez 

Proceedings of the ACM on Human-Computer Interaction, CSCW. 2021-04-01. Vol. 5, num. CSCW1, Article 100, p. 100-132. DOI : 10.1145/3449174.

Smartphone Sensing for the Well-being of Young Adults: A Review

L. Meegahapola; D. Gatica-Perez 

IEEE Access. 2021-01-05. Vol. 9, p. 3374-3399. DOI : 10.1109/ACCESS.2020.3045935.

Shooting shots: Estimating alcoholic drink sizes in real life using event-level reports and annotations of close-up pictures

F. Labhart; T-T. Phan; D. Gatica-Perez; E. Kuntsche 

Drug And Alcohol Review. 2021. Vol. 40, num. 7, p. 1228-1238. DOI : 10.1111/dar.13212.

Youth nightlife at home: towards a feminist conceptualisation of home

K. Pelzelmayer; S. Landolt; J. Truong; F. Labhart; D. Santani et al. 

Children’s Geographies. 2021. Vol. 19, num. 1, p. 1-12. DOI : 10.1080/14733285.2020.1718607.

2020

Understanding Heavy Drinking at Night through Smartphone Sensing and Active Human Engagement

T-T. Phan; F. Labhart; S. Muralidhar; D. Gatica-Perez 

2020. 14th EAI International Conference on Pervasive Computing Technologies for Healthcare. p. 211-222. DOI : 10.1145/3421937.3421992.

Learning Urban Nightlife Routines from Mobile Data

A. Pozo; T-T. Phan; D. Gatica-Perez 

2020. Int. Conf. on Mobile and Ubiquitous Multimedia. p. 107-118. DOI : 10.1145/3428361.3428396.

Understanding Applicants’ Reactions to Asynchronous Video Interviews through Self-Reports and Nonverbal Cues

S. Muralidhar; E. P. Kleinlogel; E. Mayor; A. Bangerter; M. Schmid Mast et al. 

2020. ACM Int. Conf. on Multimodal Interaction (ICMI). p. 566-574. DOI : 10.1145/3382507.3418869.

Protecting Mobile Food Diaries from Getting too Personal

L. B. Meegahapola; S. Ruiz-Correa; D. Gatica-Perez 

2020. 19th International Conference on Mobile and Ubiquitous Multimedia. p. 212–222. DOI : 10.1145/3428361.3428468.

Alone or With Others? Understanding Eating Episodes of College Students with Mobile Sensing

L. B. Meegahapola; S. Ruiz-Correa; D. Gatica-Perez 

2020. 19th International Conference on Mobile and Ubiquitous Multimedia. p. 162–166. DOI : 10.1145/3428361.3428463.

Corona Citizen Science Research Team. Regards sur le futur / Perspectives.

L. Fritz; G. Clément; L. Daffe; U. Vilsmaier; C. R. Binder et al. 

2020

Corona Citizen Science Research Team. Les expériences de la crise/Experiences of the crisis

L. Fritz; G. Clément; L. Daffe; U. Vilsmaier; C. R. Binder et al. 

2020

Evaluation of 1-Year in-Home Monitoring Technology by Home-Dwelling Older Adults, Family Caregivers, and Nurses

B. Pais; P. Buluschek; G. DuPasquier; T. Nef; N. Schuetz et al. 

Frontiers In Public Health. 2020-10-02. Vol. 8, p. 518957. DOI : 10.3389/fpubh.2020.518957.

Understanding Eating And Drinking In Context From Crowdsourced Data

T. T. Phan / D. Gatica-Perez (Dir.)  

Lausanne, EPFL, 2020. 

Capturing drinking and nightlife behaviours and their social and physical context with a smartphone application – investigation of users’ experience and reactivity

F. Labhart; F. Tarsetti; O. Bornet; D. Santani; J. Truong et al. 

Addiction Research & Theory. 2020-01-02. Vol. 28, num. 1, p. 62-75. DOI : 10.1080/16066359.2019.1584292.

The emotional entanglements of smartphones “in the field”: on social positioning, power relations, and research ethics

J. Truong; F. Labhart; D. Santani; D. Gatica-Perez; E. Kuntsche et al. 

Area. 2020. Vol. 52, num. 1, p. 81-88. DOI : 10.1111/area.12548.

2019

Discovering Eating Routines in Context with a Smartphone App

D. Gatica-Perez; J-I. Biel; D. Labbe; N. Martin 

2019-01-01. ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp) / ACM International Symposium on Wearable Computers (ISWC), London, ENGLAND, Sep 09-13, 2019. p. 422-429. DOI : 10.1145/3341162.3349297.

Transitions of Tonality: A Model-Based Corpus Study

F. C. Moss / M. A. Rohrmeier; M. F. J. Neuwirth (Dir.)  

Lausanne, EPFL, 2019. 

Architectural Sampling: A Formal Basis for Machine-Learnable Architecture

I. C. B. Koh / J. Huang (Dir.)  

Lausanne, EPFL, 2019. 

BookTubing Across Regions: Examining Differences based on Nonverbal and Verbal Cues

C. Thomas; D. Jayagopi; D. Gatica-Perez 

2019. ACM Int. Conf. on Interactive Experiences for Television and Online Video (TVX), Salford, ENGLAND, Jun 05-07, 2019. p. 145-156. DOI : 10.1145/3317697.3323357.

My Own Private Nightlife: Understanding Youth Personal Spaces from Crowdsourced Video

T-T. Phan; F. Labhart; D. Gatica-Perez 

Proceedings of the ACM on Human-Computer Interaction. 2019. Vol. 3, p. 189. DOI : 10.1145/3359291.

Drinks & Crowds: Characterizing Alcohol Consumption through Crowdsensing and Social Media

T-T. Phan; S. Muralidhar; D. Gatica-Perez 

Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies. 2019. Vol. 3, num. 2, p. 59. DOI : 10.1145/3328930.

Social Multimedia, Diversity, and Global South Cities: A Double Blind Side

D. Gatica-Perez; D. Santani; J-I. Biel; T-T. Phan 

2019. ACM Workshop on Fairness, Accountability, and Transparency in Multimedia (FAT/MM), Nice, p. 4–10. DOI : 10.1145/3347447.3356749.

Validity of pervasive computing based continuous physical activity assessment in community-dwelling old and oldest-old

N. Schutz; H. Saner; B. Rudin; A. Botros; B. Pais et al. 

Scientific Reports. 2019-07-04. Vol. 9, p. 9662. DOI : 10.1038/s41598-019-45733-8.

#Drink Or #Drunk: Multimodal Signals and Drinking Practices on Instagram

T-T. Phan; S. Muralidhar; D. Gatica-Perez 

2019. 13th EAI International Conference on Pervasive Computing Technologies for Healthcare, Trento, Italy, p. 71–80. DOI : 10.1145/3329189.3329193.

Social Sensing Methods for Analysis of Dyadic Hospitality Encounters

S. Muralidhar / D. Gatica-Perez (Dir.)  

Lausanne, EPFL, 2019. 

Mi Casa es su Casa? Examining Airbnb Hospitality Exchange Practices in a Developing Economy

S. Ruiz-Correa; I. Ruiz-Correa; C. Olmos Carrillo; F. A. RENDÓN-HUERTA; B. Ramirez-Salazar et al. 

ACM Transactions on Social Computing. 2019. Vol. 2, num. 1, p. 2. DOI : 10.1145/3299817.

2018

Vlogging Over Time: Longitudinal Impressions and Behavior in YouTube

D. Gatica-Perez; D. Sanchez-Cortes; Trinh Minh Tri Do; D. B. Jayagopi; K. Otsuka 

2018-01-01. 17th International Conference on Mobile and Ubiquitous Multimedia (MUM), Cairo, EGYPT, Nov 25-28, 2018. p. 37-46. DOI : 10.1145/3282894.3282922.

Looking South: Learning Urban Perception in Developing Cities

D. Santani; S. Ruiz-Correa; D. Gatica-Perez 

ACM Transactions on Social Computing. 2018. Vol. 1, num. 3, p. 13. DOI : 10.1145/3224182.

Modeling Dyadic and Group Impressions with Inter-Modal and Inter-Person Features

S. Okada; L. S. Nguyen; O. Aran; D. Gatica-Perez 

ACM Transactions on Multimedia Computing, Communications, and Applications. 2018. Vol. 15, num. suppl. 1, p. 13. DOI : 10.1145/3265754.

Words Worth: Verbal Content and Hirability Impressions in YouTube Video Resumes

S. Muralidhar; L. S. Nguyen; D. Gatica-Perez 

2018. 

Facing Employers and Customers: What Do Gaze and Expressions Tell About Soft Skills?

S. Muralidhar; R. Siegfried; J-M. Odobez; D. Gatica-Perez 

2018. 17th International Conference on Mobile and Ubiquitous Multimedia, Cairo, EGYPT, Nov 25-28, 2018. p. 121-126. DOI : 10.1145/3282894.3282925.

Making large art historical photo archives searchable

B. L. A. Seguin / F. Kaplan; I. di Lenardo (Dir.)  

Lausanne, EPFL, 2018. 

A Tale of Two Interactions: Inferring Performance in Hospitality Encounters from Cross-Situation Social Sensing

S. Muralidhar; M. Schmid Mast; D. Gatica-Perez 

Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies. 2018. Vol. 2, num. 3, p. 129. DOI : 10.1145/3264939.

Ambiance in Social Media Venues: Visual Cue Interpretation by Machines and Crowds

G. Can; Y. Benkhedda; D. Gatica-Perez 

2018. IEEE CVPR Workshop on Visual Understanding of Subjective Attributes, Salt Lake City, UT, Jun 18-22, 2018. p. 2426-2435. DOI : 10.1109/CVPRW.2018.00313.

How to Tell Ancient Signs Apart? Recognizing and Visualizing Maya Glyphs with CNNs

G. Can; J-M. Odobez; D. Gatica-Perez 

ACM Journal on Computing and Cultural Heritage (JOCCH). 2018. Vol. 11, num. 4, p. 20. DOI : 10.1145/3230670.

DrinkSense: Characterizing Youth Drinking Behavior using Smartphones

D. Santani; T-M. Do; F. Labhart; S. Landolt; E. Kuntsche et al. 

IEEE Transactions on Mobile Computing. 2018. Vol. 17, num. 10, p. 2279-2292. DOI : 10.1109/TMC.2018.2797901.

Check Out This Place: Inferring Ambiance from Airbnb Photos

L. S. Nguyen; S. Ruiz-Correa; M. Schmid Mast; D. Gatica-Perez 

IEEE transactions on Multimedia. 2018. Vol. 20, num. 6, p. 1499-1511. DOI : 10.1109/TMM.2017.2769444.

Maya Codical Glyph Segmentation: A Crowdsourcing Approach

G. Can; J-M. Odobez; D. Gatica-Perez 

IEEE Transactions on Multimedia. 2018-03-01. Vol. 20, num. 3, p. 711-725. DOI : 10.1109/TMM.2017.2755985.

2017

#Healthy #Fondue #Dinner: Analysis and Inference of Food and Drink Consumption Patterns on Instagram

T. P. Thanh; D. Gatica-Perez 

2017.  p. 327–338. DOI : 10.1145/3152832.3152857.

Examining Linguistic Content and Skill Impression Structure for Job Interview Analytics in Hospitality

S. Muralidhar; D. Gatica-Perez 

2017.  p. 339–343. DOI : 10.1145/3152832.3152866.

Development of the Geographical Proportional-to-size Street-Intercept Sampling (GPSIS) method for recruiting urban nightlife-goers in an entire city

F. Labhart; D. Santani; J. Truong; F. Tarsetti; O. Bornet et al. 

International Journal of Social Research Methodology. 2017. Vol. 20, num. 6, p. 721-736. DOI : 10.1080/13645579.2017.1293928.

Visual Analysis of Maya Glyphs via Crowdsourcing and Deep Learning

G. Can / D. Gatica-Perez; J-M. Odobez (Dir.)  

Lausanne, EPFL, 2017. 

Bites’n’Bits: Inferring Eating Behavior from Contextual Mobile Data

J-I. Biel; N. Martin; D. Labbe; D. Gatica-Perez 

Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (PACM IMWUT). 2017. Vol. 1, num. 4, p. 125-157. DOI : 10.1145/3161161.

Recommender Systems for Healthy Behavior Change

O. Yürüten / P. Pu Faltings (Dir.)  

Lausanne, EPFL, 2017. 

How May I Help You? Behavior and Impressions in Hospitality Service Encounters

S. Muralidhar; M. Schmid Mast; D. Gatica-Perez 

2017. Proceddings of 19th ACM International Conference on Multimodal Interaction. p. 312–320. DOI : 10.1145/3136755.3136771.

Elderly People Living Alone: Detecting Home Visits with Ambient and Wearable Sensing

R. Hu; H. Pham; P. Buluschek; D. Gatica-Perez 

2017.  p. 85–88. DOI : 10.1145/3132635.3132649.

Venues in Social Media: Examining Ambiance Perception Through Scene Semantics

Y. Benkhedda; D. Santani; D. Gatica-Perez 

2017.  p. 1416–1424. DOI : 10.1145/3123266.3123402.

MAAYA: Multimedia Methods to Support Maya Epigraphic Analysis

D. Gatica-Perez; G. Can; R. Hu; S. Marchand-Maillet; J-M. Odobez et al. 

Arqueologia computacional: Nuevos enfoques para el analisis y la difusion del patrimonio cultural; INAH-RedTDPC, 2017.

Shape Representations for Maya Codical Glyphs: Knowledge-driven or Deep?

G. Can; J-M. Odobez; D. Gatica-Perez 

2017. 15th International Workshop on Content-Based Multimedia Indexing. p. 32. DOI : 10.1145/3095713.3095746.

Insiders and Outsiders: Comparing Urban Impressions between Population Groups

D. Santani; S. Ruiz-Correa; D. Gatica-Perez 

2017. International Conference on Multimedia Retrieval, Bucharest, Romania, June 06 – 09, 2017. p. 65-71. DOI : 10.1145/3078971.3079022.

Complex event recognition through wearable sensors

J-E. M. Ranvier / K. Aberer (Dir.)  

Lausanne, EPFL, 2017. 

Analyzing and Visualizing Ancient Maya Hieroglyphics Using Shape: from Computer Vision to Digital Humanities

R. Hu; C. Pallan Gayol; J-M. Odobez; D. Gatica-Perez 

Digital Scholarship in the Humanities. 2017. Vol. 32, num. suppl_2, p. ii179-ii194. DOI : 10.1093/llc/fqx028.

Maya Codical Glyph Segmentation: A Crowdsourcing Approach

G. Can; J-M. Odobez; D. Gatica-Perez 

2017

SenseCityVity: Mobile Crowdsourcing, Urban Awareness, and Collective Action in Mexico

S. Ruiz-Correa; D. Santani; B. Ramirez Salazar; I. Ruiz-Correa; F. Rendon-Huerta et al. 

IEEE Pervasive Computing. 2017. Vol. 16, num. 2, p. 44-53. DOI : 10.1109/MPRV.2017.32.

Extracting Maya Glyphs from Degraded Ancient Documents via Image Segmentation

R. Hu; J-M. Odobez; D. Gatica-Perez 

Journal on Computing and Cultural Heritage. 2017. Vol. 10, num. 2, p. 10. DOI : 10.1145/2996859.

Rapport with Virtual Agents: What do Human Social Cues and Personality Explain?

A. Cerekovic; O. Aran; D. Gatica-Perez 

IEEE Transactions on Affective Computing. 2017. Vol. 8, num. 3, p. 382-395. DOI : 10.1109/TAFFC.2016.2545650.

Analysis of Small Groups

D. Gatica-Perez; O. Aran; D. B. Jayagopi 

Social Signal Processing; Cambridge University Press, 2017. p. 349-367.

2016

Dites-Moi: Wearable Feedback on Conversational Behavior

S. Muralidhar; J. M. R. Costa; L. S. Nguyen; D. Gatica-Perez 

2016.  p. 261–265. DOI : 10.1145/3012709.3012733.

Training on the Job: Behavioral Analysis of Job Interviews in Hospitality

S. Muralidhar; L. S. Nguyen; D. Frauendorfer; J-M. Odobez; M. Schmid Mast et al. 

2016. Proceedings of the 18th ACM International Conference on Multimodal Interaction. p. 84-91. DOI : 10.1145/2993148.2993191.

Stressful First Impressions in Job Interviews

A. Finnerty; S. Muralidhar; L. S. Nguyen; F. Pianesi; D. Gatica-Perez 

2016. Proceedings of the 18th ACM International Conference on Multimodal Interaction. p. 325-332. DOI : 10.1145/2993148.2993198.

What TripAdvisor Can’t Tell: Crowdsourcing Urban Impressions for Whole Cities

D. Gatica-Perez; S. Ruiz-Correa; D. Santani 

Digital Polis; L’oeil d’Or, 2016.

Computational Analysis of Urban Places Using Mobile Crowdsensing

D. Santani / D. Gatica-Perez (Dir.)  

Lausanne, EPFL, 2016. 

Acquiring Broad Commonsense Knowledge for Sentiment Analysis Using Human Computation

M. Boia / B. Faltings; P. Pu Faltings (Dir.)  

Lausanne, EPFL, 2016. 

The Night is Young: Urban Crowdsourcing of Nightlife Patterns

D. Santani; J-I. Biel; F. Labhart; J. Truong; S. Landolt et al. 

2016. DOI : 10.1145/2971648.2971713.

InnerView: Learning Place Ambiance from Social Media Images

D. Santani; R. Hu; D. Gatica-Perez 

2016. Proceedings of the 24th ACM International Conference on Multimedia. p. 451-455. DOI : 10.1145/2964284.2967261.

Anomaly detection in elderly daily behavior in ambient sensing environments

O. Aran; D. Sanchez-Cortes; T-M. Do; D. Gatica-Perez 

2016. Proceedings of the 7th Int. Workshop on Human Behavior Understanding, ACM Multimedia, 2016, Amsterdam, Netherlands, p. 51-67. DOI : 10.1007/978-3-319-46843-3_4.

Transferring Neural Representations for Low-dimensional Indexing of Maya Hieroglyphic Art

E. Roman-Rangel; G. Can; S. Marchand-Maillet; R. Hu; C. Pallan Gayol et al. 

2016. ECCV Workshop on Computer Vision for Art Analysis, Amsterdam, p. 842–855. DOI : 10.1007/978-3-319-46604-0_58.

Guidelines for the use and interpretation of assays for monitoring autophagy (3rd edition)

D. J. Klionsky; K. Abdelmohsen; A. Abe; M. J. Abedin; H. Abeliovich et al. 

Autophagy. 2016. Vol. 12, num. 1, p. 1-222. DOI : 10.1080/15548627.2015.1100356.

Assessing a Shape Descriptor for Analysis of Mesoamerican Hieroglyphics: A View Towards Practice in Digital Humanities

R. Hu; J-M. Odobez; D. Gatica-Perez 

2016. Digital Humanities Conference (DH), Krakow,

Ancient Maya Writings as High-Dimensional Data: a Visualization Approach

G. Can; J-M. Odobez; C. Pallan Gayol; D. Gatica-Perez 

2016. Digital Humanities (DH), Krakow,

Hirability in the wild: Analysis of online conversational video resumes

L. S. Nguyen; D. Gatica-Perez 

IEEE Transactions on Multimedia. 2016. Vol. 18, num. 7, p. 1422-1437. DOI : 10.1109/Tmm.2016.2557058.

Evaluating Shape Representations for Maya Glyph Classification

G. Can; J-M. Odobez; D. Gatica-Perez 

ACM Journal on Computing and Cultural Heritage. 2016. Vol. 9, num. 3, p. 14. DOI : 10.1145/2905369.

2015

CommuniSense: Crowdsourcing Road Hazards in Nairobi

D. Santani; J. Njuguna; T. Bills; A. W. Bryant; R. Bryant et al. 

2015. Proceedings of the 17th International Conference on Human-Computer Interaction with Mobile Devices and Services, Copenhagen, Denmark, DOI : 10.1145/2785830.2785837.

Loud and Trendy: Crowdsourcing Impressions of Social Ambiance in Popular Indoor Urban Places

D. Santani; D. Gatica-Perez 

2015. 23rd ACM International Conference on Multimedia, Brisbane, Australia, p. 211–220. DOI : 10.1145/2733373.2806277.

Looking at Cities in Mexico with Crowds

D. Santani; S. Ruiz-Correa; D. Gatica-Perez 

2015. Proceedings of the 2015 Annual Symposium on Computing for Development, London, United Kingdom, DOI : 10.1145/2830629.2830638.

Let Your Body Speak: Communicative Cue Extraction on Natural Interaction Using RGBD Data

A. Marcos-Ramiro; D. Pizarro; M. Marron-Romera; D. Gatica-Perez 

Ieee Transactions On Multimedia. 2015. Vol. 17, num. 10, p. 1721-1732. DOI : 10.1109/Tmm.2015.2464152.

Happy and Agreeable? Multi-Label Classification of Impressions in Social Video

G. Chávez-Martínez; S. Ruiz-Correa; D. Gatica-Perez 

2015. International Conference on Mobile and Ubiquitous Multimedia, Linz, p. 109–120. DOI : 10.1145/2836041.2836051.

Personality Trait Classification via Co-Occurrent Multiparty Multimodal Event Discovery

S. Okada; O. Aran; D. Gatica-Perez 

2015.  p. 15–22. DOI : 10.1145/2818346.2820757.

I would hire you in a minute: Thin slices of nonverbal behavior in job interviews

L. S. Nguyen; D. Gatica-Perez 

2015.  p. 51–58. DOI : 10.1145/2818346.2820760.

Camera-based estimation of student’s attention in class

M. Raca / P. Dillenbourg (Dir.)  

Lausanne, EPFL, 2015. 

Energy-efficient Continuous Context Sensing on Mobile Phones

J. Eberle / K. Aberer (Dir.)  

Lausanne, EPFL, 2015. 

In the Mood for Vlog: Multimodal Inference in Conversational Social Video

D. Sanchez-Cortes; S. Kumano; K. Otsuka; D. Gatica-Perez 

ACM Transactions on Interactive Intelligent Systems. 2015. Vol. 5, num. 2, p. 9. DOI : 10.1145/2641577.

Computational Analysis Of Behavior In Employment Interviews And Video Resumes

L. S. Nguyen / D. Gatica-Perez (Dir.)  

Lausanne, EPFL, 2015. 

Multimedia Analysis and Access of Ancient Maya Epigraphy

R. Hu; G. Can; C. Pallan Gayol; G. Krempel; J. Spotak et al. 

IEEE Signal Processing Magazine. 2015. Vol. 32, num. 4, p. 75-84. DOI : 10.1109/MSP.2015.2411291.

Theme issue from ISWC 2013

D. Gatica-Perez; D. Roggen; M. Fukumoto 

Personal And Ubiquitous Computing. 2015. Vol. 19, num. 1, p. 103-104. DOI : 10.1007/s00779-014-0814-z.

What Your Face Vlogs About: Expressions of Emotion and Big-Five Traits Impressions in YouTube

L. Teijeiro-Mosquera; J-I. Biel; J. L. Alba-Castro; D. Gatica-Perez 

IEEE Transactions on Affective Computing. 2015. Vol. 6, num. 2, p. 193-205. DOI : 10.1109/Taffc.2014.2370044.

Signal Processing in the Workplace

D. Gatica-Perez 

IEEE Signal Processing Magazine. 2015. Vol. 32, num. 1, p. 121-125. DOI : 10.1109/Msp.2014.2359247.

Emergent Power Hierarchies and Group Performance

D. Frauendorfer; M. Schmid Mast; D. Sanchez-Cortes; D. Gatica-Perez 

International Journal of Psychology. 2015. Vol. 50, num. 5, p. 392-396. DOI : 10.1002/ijop.12102.

A Probabilistic Kernel Method for Human Mobility Prediction with Smartphones

T-M. Do; O. Dousse; M. Miettinen; D. Gatica-Perez 

Pervasive and Mobile Computing. 2015. Vol. 20, p. 13-28. DOI : 10.1016/j.pmcj.2014.09.001.

2014

ISWC 2013–Wearables are Here to Stay

D. Roggen; D. Gatica-Perez; M. Fukumoto; K. van Laerhoven 

IEEE Pervasive Computing. 2014. Vol. 13, num. 1, p. 14-18. DOI : 10.1109/Mprv.2014.11.

The Workshop on Computational Personality Recognition 2014

F. Celli; B. Lepri; J-I. Biel; G. Riccardi; D. Gatica-Perez et al. 

2014.  p. 1245–1246. DOI : 10.1145/2647868.2647870.

Mining Crowdsourced First Impressions in Online Social Video

J-I. Biel; D. Gatica-Perez 

IEEE Transactions on Multimedia. 2014. Vol. 16, num. 7, p. 2062-2074. DOI : 10.1109/TMM.2014.2346471.

Capturing Upper Body Motion in Conversation: an Appearance Quasi-Invariant Approach

A. Marcos-Ramiro; D. Pizarro-Perez; M. Marron-Romera; D. Gatica-Perez 

2014. ACM Int. Conf. on Multimodal Interaction, Istanbul, p. 327–334. DOI : 10.1145/2663204.2663267.

Automatic Blinking Detection towards Stress Discovery

A. Marcos-Ramiro; D. Pizarro-Perez; M. Marron-Romera; D. Gatica-Perez 

2014. ACM Int. Conf. on Multimodal Interaction, Istanbul, p. 307–310. DOI : 10.1145/2663204.2663239.

Nonverbal Social Sensing in Action: Unobtrusive Recording and Extracting of Nonverbal Behavior in Social Interactions Illustrated with a Research Example

D. Frauendorfer; M. Schmid Mast; L. S. Nguyen; D. Gatica-Perez 

Journal of Nonverbal Behavior. 2014. Vol. 38, num. 2, p. 231-245. DOI : 10.1007/s10919-014-0173-5.

The MAAYA Project: Multimedia Analysis and Access for Documentation and Decipherment of Maya Epigraphy

D. Gatica-Perez; C. Pallan Gayol; S. Marchand-Maillet; J-M. Odobez; E. Roman-Rangel et al. 

2014. Digital Humanities Conference, Lausanne,

Is That a Jaguar? Segmenting Ancient Maya Glyphs via Crowdsourcing

G. Can; J-M. Odobez; D. Gatica-Perez 

2014. ACM Int. Workshop on Crowdsourcing for Multimedia, Orlando, p. 37–40. DOI : 10.1145/2660114.2660117.

The Young and the City: Crowdsourcing Urban Awareness in a Developing Country

S. Ruiz-Correa; D. Santani; D. Gatica-Perez 

2014. The 1st International Conference on IoT in Urban Space (Urb-IoT 2014). p. 74–79. DOI : 10.4108/icst.urb-iot.2014.257453.

The Young and the City: Crowdsourcing Urban Awareness in a Developing Country

S. Ruiz-Correa; D. Santani; D. Gatica-Perez 

2014

How Do You Like Your Virtual Agent?: Human-Agent Interaction Experience through Nonverbal Features and Personality Traits

A. Cerekovic; O. Aran; D. Gatica-Perez 

2014. Human Behavior Understanding – 5th International Workshop, HBU 2014, Zurich, Switzerland, September 12, 2014. p. 1-15. DOI : 10.1007/978-3-319-11839-0_1.

Automatic Maya Hieroglyph Retrieval Using Shape and Context Information

R. Hu; C. Pallan; G. Krempel; J-M. Odobez; D. Gatica-Perez 

2014. ACM MM. p. 1037–1040. DOI : 10.1145/2647868.2655044.

Inferring Visual Attention and Addressee in Human Robot Interaction

S. Sheikhi / J-M. Odobez (Dir.)  

Lausanne, EPFL, 2014. 

Multi-View Signal Processing and Learning on Graphs

X. Dong / P. Frossard; P. Vandergheynst (Dir.)  

Lausanne, EPFL, 2014. 

Hire Me: Computational inference of hirability in employment interviews based on nonverbal behavior

L. S. Nguyen; D. Frauendorfer; M. Schmid Mast; D. Gatica-Perez 

IEEE Transactions on Multimedia. 2014. Vol. 16, num. 4, p. 1018-1031. DOI : 10.1109/Tmm.2014.2307169.

A Probabilistic Approach to Mining Mobile Phone Data Sequences

K. Farrahi; D. Gatica-Perez 

Personal and Ubiquitous Computing. 2014. Vol. 18, num. 1, p. 223-228. DOI : 10.1007/s00779-013-0640-8.

The Places of Our Lives: Visiting Patterns and Automatic Labeling from Longitudinal Smartphone Data

T-M. Do; D. Gatica-Perez 

IEEE Transactions on Mobile Computing. 2014. Vol. 13, num. 3, p. 638-648. DOI : 10.1109/Tmc.2013.19.

Broadcasting oneself: Visual Discovery of Vlogging Styles

O. Aran; J-I. Biel; D. Gatica-Perez 

IEEE Transactions on Multimedia. 2014. Vol. 16, num. 1, p. 201-215. DOI : 10.1109/TMM.2013.2284893.

2013

Hi YouTube! Personality Impressions and Verbal Content in Social Video

J-I. Biel; D. Gatica-Perez; J. Dines; V. Tsminiaki 

2013. 15th ACM International Conference on Multimodal Interaction, Sydney, Australia, December 09 – 13, 2013. p. 119-126. DOI : 10.1145/2522848.2522877.

From big smartphone data to worldwide research: The Mobile Data Challenge

J. K. Laurila; D. Gatica-Perez; I. Aad; J. Blom; O. Bornet et al. 

Pervasive And Mobile Computing. 2013. Vol. 9, num. 6, p. 752-771. DOI : 10.1016/j.pmcj.2013.07.014.

Special Issue on the Mobile Data Challenge

D. Gatica-Perez; J. K. Laurila; J. Blom 

Pervasive And Mobile Computing. 2013. Vol. 9, num. 6, p. 751-751. DOI : 10.1016/j.pmcj.2013.10.001.

Revisiting the Generality of the Rank-based Human Mobility Model

D. Santani; D. Gatica-Perez 

2013. 

Speaking Swiss: Languages and Venues in Foursquare

D. Santani; D. Gatica-Perez 

2013.  p. 501–504. DOI : 10.1145/2502081.2502133.

Inferring Mood in Ubiquitous Conversational Video

D. Sanchez-Cortes; J-I. Biel; S. Kumano; J. Yamato; K. Otsuka et al. 

2013. 12th International Conference on Mobile and Ubiquitous Multimedia, Luleå, Sweden, p. 2. DOI : 10.1145/2541831.2541864.

Emergent leaders through looking and speaking: from audio-visual data to multimodal recognition

D. Sanchez-Cortes; O. Aran; D. B. Jayagopi; M. Schmid Mast; D. Gatica-Perez 

Journal on Multimodal User Interfaces. 2013. Vol. 7, num. 1-2, p. 39-53. DOI : 10.1007/s12193-012-0101-0.

Evaluating Shape Descriptors for Detection of Maya Hieroglyphs

E. Roman-Rangel; J-M. Odobez; D. Gatica-Perez 

2013. Mexican Conference on Pattern Recognition, Queretaro, June 26-29, 2013. p. 145–154. DOI : 10.1007/978-3-642-38989-4_15.

Wordless Sounds: Robust Speaker Diarization using Privacy-Preserving Audio Representations

S. H. K. Parthasarathi; H. Bourlard; D. Gatica-Perez 

IEEE Transactions on Audio, Speech, and Language Processing. 2013. Vol. 21, num. 1, p. 85-98. DOI : 10.1109/TASL.2012.2215588.

Multimodal Analysis of Body Communication Cues in Employment Interviews

L. S. Nguyen; A. Marcos-Ramiro; M. Marron-Romera; D. Gatica-Perez 

2013.  p. 437–444. DOI : 10.1145/2522848.2522860.

Discovering places of interest in everyday life from smartphone data

R. Montoliu; J. Blom; D. Gatica-Perez 

Multimedia Tools And Applications. 2013. Vol. 62, num. 1, p. 179-207. DOI : 10.1007/s11042-011-0982-z.

Body communicative cue extraction for conversational analysis

A. Marcos-Ramiro; D. Pizarro-Perez; M. Marron-Romera; L. S. Nguyen; D. Gatica-Perez 

2013. 2013 10th IEEE International Conference and Workshops on Automatic Face and Gesture Recognition (FG). DOI : 10.1109/FG.2013.6553741.

From Foursquare to my Square: Learning Check-in Behavior from Multiple Sources

E. Malmi; T-M. Do; D. Gatica-Perez 

2013. The 7th International AAAI Conference on Weblogs and Social Media. p. 701-704. DOI : 10.1609/icwsm.v7i1.14448.

The vernissage corpus: a conversational human-robot-interaction dataset

D. B. Jayagopi; S. Sheikhi; D. Klotz; J. Wienke; J-M. Odobez et al. 

2013. 2013 8th ACM/IEEE International Conference on Human-Robot Interaction (HRI). p. 149-150. DOI : 10.1109/HRI.2013.6483545.

A Semi-Automated System for Accurate Gaze Coding in Natural Dyadic Interactions

K. A. Funes Mora; L. S. Nguyen; D. Gatica-Perez; J-M. Odobez 

2013. 15th ACM International Conference on Multimodal Interaction, Sydney, Australia, DOI : 10.1145/2522848.2522884.

Human Interaction Discovery in Smartphone Proximity Networks

T-M. Do; D. Gatica-Perez 

Personal and Ubiquitous Computing. 2013. Vol. 17, num. 3, p. 413-431. DOI : 10.1007/s00779-011-0489-7.

Where and What: Using Smartphones to Predict Next Locations and Applications in Daily Life

T-M. Do; D. Gatica-Perez 

Pervasive and Mobile Computing. 2013. Vol. 12, p. 79-91. DOI : 10.1016/j.pmcj.2013.03.006.

Inferring social activities with mobile sensor networks

T-M. Do; K. Kalimeri; B. Lepri; F. Pianesi; D. Gatica-Perez 

2013. 15th ACM International Conference on Multimodal Interaction. p. 405–412. DOI : 10.1145/2522848.2522894.

Mining Large-Scale Smartphone Data for Personality Studies

G. Chittaranjan; J. Blom; D. Gatica-Perez 

Personal and Ubiquitous Computing. 2013. Vol. 17, num. 3, p. 433-450. DOI : 10.1007/s00779-011-0490-1.

Cross-Domain Personality Prediction: From Video Blogs to Small Group Meetings

O. Aran; D. Gatica-Perez 

2013. 15th ACM International Conference on Multimodal Interaction. p. 127–130. DOI : 10.1145/2522848.2522858.

One of a Kind: Inferring Personality Impressions in Meetings

O. Aran; D. Gatica-Perez 

2013. 15th ACM International Conference on Multimodal Interaction. p. 11–18. DOI : 10.1145/2522848.2522859.

Special Section on Social Media as Sensors

I. Kompatsiaris; D. Gatica-Perez; X. Xie; J. Luo 

Ieee Transactions On Multimedia. 2013. Vol. 15, num. 6, p. 1229-1230. DOI : 10.1109/Tmm.2013.2264232.

Mining Conversational Social Video

J. I. Biel Tres / D. Gatica-Perez (Dir.)  

Lausanne, EPFL, 2013. 

The YouTube Lens: Crowdsourced Personality Impressions and Audiovisual Analysis of Vlogs

J-I. Biel; D. Gatica-Perez 

Ieee Transactions On Multimedia. 2013. Vol. 15, num. 1, p. 41-55. DOI : 10.1109/Tmm.2012.2225032.

Computational Methods for Audio-Visual Analysis of Emergent Leadership in Teams

D. Sanchez Cortes / D. Gatica-Perez (Dir.)  

Lausanne, EPFL, 2013. 

Statistical Shape Descriptors for Ancient Maya Hieroglyphs Analysis

E. Roman Rangel / D. Gatica-Perez; J-M. Odobez (Dir.)  

Lausanne, EPFL, 2013. 

2012

Wordless Sounds: Robust Speaker Diarization using Privacy-Preserving Audio Representations

S. H. K. Parthasarathi; H. Bourlard; D. Gatica-Perez 

2012

Using self-context for multimodal detection of head nods in face-to-face interactions

L. S. Nguyen; J-M. Odobez; D. Gatica-Perez 

2012

Assessing the Impact of Language Style on Emergent Leadership Perception from Ubiquitous Audio

D. Sanchez-Cortes; P. Motlicek; D. Gatica-Perez 

2012. Proceedings of the 11th International Conference on Mobile and Ubiquitous Multimedia, Ulm, Germany, p. 33. DOI : 10.1145/2406367.2406408.

A Nonverbal Behavior Approach to Identify Emergent Leaders in Small Groups

D. Sanchez-Cortes; O. Aran; M. Schmid Mast; D. Gatica-Perez 

IEEE Transactions on Multimedia. 2012. Vol. 14, num. 3, p. 816-832. DOI : 10.1109/TMM.2011.2181941.

Assessing Sparse Coding Methods for Contextual Shape Indexing of Maya Hieroglyphs

E. Roman-Rangel; J-M. Odobez; D. Gatica-Perez 

Journal of Multimedia. 2012. Vol. 7, num. 2, p. 179-192.

Using Self-Context for Multimodal Detection of Head Nods in Face-to-Face Interactions

L. S. Nguyen; J-M. Odobez; D. Gatica-Perez 

2012.  p. 289–292. DOI : 10.1145/2388676.2388734.

Checking In or Checked In: Comparing Large-Scale Manual and Automatic Location Disclosure Patterns

E. Malmi; T-M. Do; D. Gatica-Perez 

2012. 11th International Conference on Mobile and Ubiquitous Multimedia, Ulm, Germany, p. 26. DOI : 10.1145/2406367.2406400.

StressSense: Detecting Stress in Unconstrained Acoustic Environments using Smartphones

H. Lu; M. Rabbi; G. Chittaranjan; D. Frauendorfer; M. Schmid Mast et al. 

2012. Ubicomp’12, Pittsburgh, p. 351–360. DOI : 10.1145/2370216.2370270.

The Mobile Data Challenge: Big Data for Mobile Computing Research

J. K. Laurila; D. Gatica-Perez; I. Aad; B. J.; O. Bornet et al. 

2012. Pervasive Computing, Newcastle,

Modeling dominance effects on nonverbal behaviors using granger causality

K. Kalimeri; B. Lepri; O. Aran; D. B. Jayagopi; D. Gatica-Perez et al. 

2012. 

Linking Speaking and Looking Behavior Patterns with Group Composition, Perception, and Performance

D. B. Jayagopi; D. Sanchez-Cortes; K. Otsuka; J. Yamato; D. Gatica-Perez 

2012. 

New world, New Worlds: Visual Analysis of Pre-Columbian Pictorial Collections.

D. Gatica-Perez; E. Roman-Rangel; J-M. Odobez; C. Pallan 

2012. First International Workshop, MM4CH 2011, Modena, Italy, May 3, 2011. p. 90-102. DOI : 10.1007/978-3-642-27978-2_8.

Extracting Mobile Behavioral Patterns with the Distant N-Gram Topic Model

K. Farrahi; D. Gatica-Perez 

2012. 2012 16th International Symposium on Wearable Computers, Newcastle, DOI : 10.1109/ISWC.2012.20.

Contextual Conditional Models for Smartphone-based Human Mobility Prediction

T-M. Do; D. Gatica-Perez 

2012.  p. 163–172. DOI : 10.1145/2370216.2370242.

The Good, the Bad, and the Angry: Analyzing Crowdsourced Impressions of Vloggers

J-I. Biel; D. Gatica-Perez 

2012. 

FaceTube: predicting personality from facial expressions of emotion in online conversational video

J-I. Biel; L. Teijeiro-Mosquera; D. Gatica-Perez 

2012. 

Introduction to the Special Section of Best Papers of ACM Multimedia 2011

D. Gatica-Perez; G. Hua; W. T. Ooi; P. Halvorsen 

Acm Transactions On Multimedia Computing Communications And Applications. 2012. Vol. 8, num. 3, p. 38. DOI : 10.1145/2348816.2348817.

The Vernissage Corpus: A Multimodal Human-Robot-Interaction Dataset

D. B. Jayagopi; S. Sheikhi; D. Klotz; J. Wienke; J-M. Odobez et al. 

2012

Learning Semantics From Multimedia Web Resources: An Introduction to the Special Issue

Q. Tian; J. Tang; M. Worring; D. Gatica-Perez 

Ieee Transactions On Multimedia. 2012. Vol. 14, p. 949-950. DOI : 10.1109/TMM.2012.2208026.

Inferring competitive role patterns in reality TV show through nonverbal analysis

B. Raducanu; D. Gatica-Perez 

Multimedia Tools And Applications. 2012. Vol. 56, p. 207-226. DOI : 10.1007/s11042-010-0545-8.

2011

An Audio Visual Corpus for Emergent Leader Analysis

D. Sanchez-Cortes; O. Aran; D. Gatica-Perez 

2011. Multimodal Corpora for Machine Learning: Taking Stock and Road mapping the Future.

Searching the Past: An Improved Shape Descriptor to Retrieve Maya Hieroglyphs.

E. Roman-Rangel; C. Pallan; J-M. Odobez; D. Gatica-Perez 

2011. ACM International Conference in Multimedia, Scottsdale, USA, p. 163–172. DOI : 10.1145/2072298.2072321.

Privacy-sensitive recognition of group conversational context with sociometers

D. B. Jayagopi; T. Kim; A. Pentland; D. Gatica-Perez 

Multimedia Systems. 2011. Vol. 18, p. 3-14. DOI : 10.1007/s00530-011-0243-z.

Smartphone usage in the wild: a large-scale analysis of applications and context

T-M. Do; J. Blom; D. Gatica-Perez 

2011. 13th International Conference on Multimodal Interaction, Alicante, Spain, November 14 – 18, 2011. p. 353–360. DOI : 10.1145/2070481.2070550.

Inferring truth from multiple annotators for social interaction analysis

G. Chittaranjan; O. Aran; D. Gatica-Perez 

2011. Neural Information Processing Systems (NIPS) Workshop on Modeling Human Communication Dynamics (HCD).

Who’s Who with Big-Five: Analyzing and Classifying Personality Traits with Smartphones

G. Chittaranjan; J. Blom; D. Gatica-Perez 

2011. International Symposium on Wearable Computing. p. 29-36. DOI : 10.1109/ISWC.2011.29.

Exploiting observers’ judgements for nonverbal group interaction analysis

G. Chittaranjan; O. Aran; D. Gatica-Perez 

2011. IEEE Conference on Automatic Face and Gesture Recognition. p. 734-739. DOI : 10.1109/FG.2011.5771339.

People-Centric Mobile Sensing with a Pragmatic Twist: from Behavioral Data Points to Active User Involvement

J. Blom; D. Gatica-Perez; N. Kiukkonen 

2011. International Conference on Human-Computer Interaction with Mobile Devices and Services. p. 381–384. DOI : 10.1145/2037373.2037431.

VlogSense: Conversational Behavior and Social Attention in YouTube

J-I. Biel; D. Gatica-Perez 

Acm Transactions On Multimedia Computing Communications And Applications. 2011. Vol. 7S, num. 1, p. 33. DOI : 10.1145/2037676.2037690.

Analysis of Group Conversations: Modeling Social Verticality

O. Aran; D. Gatica-Perez 

Computer Analysis of Human Behavior; London: Springer, 2011. p. 293-322.

Privacy-Sensitive Audio Features for Conversational Speech Processing

S. H. K. Parthasarathi / H. Bourlard; D. Gatica-Perez (Dir.)  

Lausanne, EPFL, 2011. 

LP Residual Features for Robust, Privacy-Sensitive Speaker Diarization

S. H. K. Parthasarathi; H. Bourlard; D. Gatica-Perez 

2011. Interspeech. p. 1045-1048. DOI : 10.21437/Interspeech.2011-390.

Privacy-Sensitive Audio Features for Speech/Nonspeech Detection

S. H. K. Parthasarathi; D. Gatica-Perez; H. Bourlard; M. Magimai.-Doss 

IEEE Transactions on Audio, Speech, and Language Processing. 2011. Vol. 19, num. 8, p. 2538-2551. DOI : 10.1109/TASL.2011.2151857.

LP Residual Features for Robust, Privacy-Sensitive Speaker Diarization

S. H. K. Parthasarathi; H. Bourlard; D. Gatica-Perez 

2011

Privacy-Sensitive Audio Features for Speech/Nonspeech Detection

S. H. K. Parthasarathi; D. Gatica-Perez; H. Bourlard; M. Magimai.-Doss 

2011

Pervasive Sensing to Model Political Opinions in Face-to-Face Networks

A. Madan; K. Farrahi; D. Gatica-Perez; A. Pentland 

2011. Pervasive, San Francisco, p. 214–231. DOI : 10.1007/978-3-642-21726-5_14.

GroupUs: Smartphone Proximity Data and Human Interaction Type Mining

T-M. Do; D. Gatica-Perez 

2011. 15th annual International Symposium on Wearable Computers, San Francisco, USA, p. 21-28. DOI : 10.1109/ISWC.2011.28.

Contextual grouping: discovering real-life interaction types from longitudinal Bluetooth data

T-M. Do; D. Gatica-Perez 

2011. 12th International Conference on Mobile Data Management. p. 256-265. DOI : 10.1109/MDM.2011.18.

You Are Known by How You Vlog: Personality Impressions and Nonverbal Behavior in YouTube

J-I. Biel; O. Aran; D. Gatica-Perez 

2011. AAAI International Conference on Weblogs and Social Media, Barcelona, p. 446-449. DOI : 10.1609/icwsm.v5i1.14160.

Modeling and Understanding Communities in Online Social Media using Probabilistic Methods

R. A. Negoescu / D. Gatica-Perez (Dir.)  

Lausanne, EPFL, 2011. 

A Probabilistic Approach to Socio-Geographic Reality Mining

K. Farrahi / D. Gatica-Perez (Dir.)  

Lausanne, EPFL, 2011. 

Analyzing ancient Maya glyph collections with Contextual Shape Descriptors

E. Roman-Rangel; C. Pallan; J-M. Odobez; D. Gatica-Perez 

International Journal of Computer Vision. 2011. Vol. 94, p. 101–117. DOI : 10.1007/s11263-010-0387-x.

Flickr Groups: Multimedia Communities for Multimedia Analysis

R-A. Negoescu; D. Gatica-Perez 

Internet Multimedia Search and Mining; Bentham Science Publishers, 2011. p. 204-222.

Call me Guru: user categories and large-scale behavior in YouTube

J-I. Biel; D. Gatica-Perez 

Social Media Modeling and Computing; Springer, 2011. p. 167–188.

Computational Modeling of Face-to-Face Social Interaction Using Nonverbal Behavioral Cues

D. B. Jayagopi / D. Gatica-Perez (Dir.)  

Lausanne, EPFL, 2011. 

Discovering Routines from Large-Scale Human Locations using Probabilistic Topic Models

K. Farrahi; D. Gatica-Perez 

ACM Transactions on Intelligent Systems and Technology. 2011. Vol. 2, num. 1, p. 3. DOI : 10.1145/1889681.1889684.

Estimating Dominance in Multi-Party Meetings Using Speaker Diarization

H. Hung; Y. Huang; G. Friedland; D. Gatica-Perez 

IEEE Transactions on Audio, Speech, and Language Processing. 2011. Vol. 19, num. 4, p. 847-860. DOI : 10.1109/TASL.2010.2066267.

2010

Estimating Cohesion in Small Groups Using Audio-Visual Nonverbal Behavior

H. Hung; D. Gatica-Perez 

Ieee Transactions On Multimedia. 2010. Vol. 12, p. 563-575. DOI : 10.1109/TMM.2010.2055233.

Identifying Emergent Leadership in Small Groups using Nonverbal Communicative Cues

D. Sanchez-Cortes; O. Aran; M. Schmid Mast; D. Gatica-Perez 

2010. ICMI-MLMI ’10 International Conference on Multimodal Interfaces and the Workshop on Machine Learning for Multimodal Interaction, Beijing, DOI : 10.1145/1891903.1891953.

Discovering Human Places of Interest from Multimodal Mobile Phone Data

R. Montoliu; D. Gatica-Perez 

2010. MUM ’10: 9th International Conference on Mobile and Ubiquitous Multimedia, Limassol, Cyprus, December 1 – 3, 2010. p. 12. DOI : 10.1145/1899475.1899487.

Vlogcast Yourself: Nonverbal Behavior and Attention in Social Media

J-I. Biel; D. Gatica-Perez 

2010.  p. 50. DOI : 10.1145/1891903.1891964.

Kodak Moments and Flickr Diamonds: How Users Shape Large-scale Media

R-A. Negoescu; A. Loui; D. Gatica-Perez 

2010. 18th Intl. Conf. on Multimedia, Firenze, Italy, p. 1027–1030. DOI : 10.1145/1873951.1874141.

Recognizing conversational context in group interaction using privacy-sensitive mobile sensors

D. B. Jayagopi; T. Kim; A. Pentland; D. Gatica-Perez 

2010. MUM ’10: 9th International Conference on Mobile and Ubiquitous Multimedia, Limassol ,Cyprus, December 1 – 3, 2010. p. 8. DOI : 10.1145/1899475.1899483.

Mining Human Location-Routines Using a Multi-Level Approach to Topic Modeling

K. Farrahi; D. Gatica-Perez 

2010. 2010 IEEE Second International Conference on Social Computing, SIN Symposium, Minneapolis, Minnesota, USA, p. 446-451. DOI : 10.1109/SocialCom.2010.71.

By their apps you shall understand them: mining large-scale patterns of mobile phone usage

T-M. Do; D. Gatica-Perez 

2010. The 9th International Conference on Mobile and Ubiquitous Multimedia. p. 27. DOI : 10.1145/1899475.1899502.

Fusing Audio-Visual Nonverbal Cues to Detect Dominant People in Conversations

O. Aran; D. Gatica-Perez 

2010

Modeling and Understanding Flickr Communities through Topic-based Analysis

R-A. Negoescu; D. Gatica-Perez 

IEEE Transactions on Multimedia. 2010. Vol. 12, num. 5, p. 399-416. DOI : 10.1109/TMM.2010.2050649.

Kodak Moments and Flickr Diamonds: How Users Shape Large-scale Media

R-A. Negoescu; A. Loui; D. Gatica-Perez 

2010

Modeling and Understanding Flickr Communities through Topic-based Analysis

R-A. Negoescu; D. Gatica-Perez 

2010

Flickr Groups: Multimedia Communities for Multimedia Analysis

R-A. Negoescu; D. Gatica-Perez 

2010

Towards rich mobile phone datasets: Lausanne data collection campaign

N. Kiukkonen; B. J.; O. Dousse; D. Gatica-Perez; J. Laurila 

2010. ACM Int. Conf. on Pervasive Services (ICPS), Berlin,

Mining group nonverbal conversational patterns using probabilistic topic models

D. B. Jayagopi; D. Gatica-Perez 

IEEE Transactions on Multimedia. 2010. Vol. 12, num. 8, p. 790-802. DOI : 10.1109/TMM.2010.2065218.

Estimating Cohesion in Small Groups using Audio-Visual Nonverbal Behavior

H. Hung; D. Gatica-Perez 

2010

Visual Attention, Speaking Activity, and Group Conversational Analysis in Multi-Sensor Environments

D. Gatica-Perez; J-M. Odobez 

Handbook of Ambient Intelligence and Smart Environments; Springer, 2010. p. 433-461.

Probabilistic Mining of Socio-Geographic Routines from Mobile Phone Data

K. Farrahi; D. Gatica-Perez 

IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING. 2010. Vol. 4, num. 4, p. 746-755. DOI : 10.1109/JSTSP.2010.2049513.

Mining Human Location-Routines using a Multi-Level Topic Model

K. Farrahi; D. Gatica-Perez 

2010

Voices of Vlogging

J-I. Biel; D. Gatica-Perez 

2010.  p. 211-214. DOI : 10.1609/icwsm.v4i1.14057.

Fusing Audio-Visual Nonverbal Cues to Detect Dominant People in Conversations

O. Aran; D. Gatica-Perez 

2010. 20th International Conference on Pattern Recognition, Istanbul, Turkey, p. 3687-3690. DOI : 10.1109/ICPR.2010.898.

A Multimodal Corpus for Studying Dominance in Small Group Conversations

O. Aran; H. Hung; D. Gatica-Perez 

2010. LREC workshop on Multimodal Corpora: Advances in Capturing, Coding and Analyzing Multimodality, Malta, May 2010.

Evaluating the Robustness of Privacy-Sensitive Audio Features for Speech Detection in Personal Audio Log Scenarios

S. H. K. Parthasarathi; M. Magimai.-Doss; H. Bourlard; D. Gatica-Perez 

2010. ICASSP 2010. p. 4474-4477. DOI : 10.1109/ICASSP.2010.5495596.

Evaluating the Robustness of Privacy-Sensitive Audio Features for Speech Detection in Personal Audio Log Scenarios

S. H. K. Parthasarathi; M. Magimai.-Doss; H. Bourlard; D. Gatica-Perez 

2010

2009

Predicting Remote Versus Collocated Group Interactions using Nonverbal Cues

D. Sanchez-Cortes; D. B. Jayagopi; D. Gatica-Perez 

2009. Int. Conf. on Multimodal Interfaces, Workshop on Multimodal Sensor-Based Systems and Mobile Phones for Social Computing, Cambridge, DOI : 10.1145/1641389.1641392.

Automatic nonverbal analysis of social interaction in small groups: A review

D. Gatica-Perez 

Image and Vision Computing. 2009. Vol. 27, num. 12, p. 1775-1787. DOI : 10.1016/j.imavis.2009.01.004.

Modelling Interest in Face-to-Face Conversations from Multimodal Nonverbal Behaviour

D. Gatica-Perez 

Multimodal Signal Processing: Theory and Applications for Human–Computer Interaction; Academic Press, 2009. p. 309-326.

You are fired! Nonverbal role analysis in competitive meetings

R. Bogdan; V. J.; D. Gatica-Perez 

2009. 2009 IEEE International Conference on Acoustics, Speech and Signal Processing, Taipei, Taiwan, 19-24 April 2009. p. 1949-1952. DOI : 10.1109/ICASSP.2009.4959992.

Investigating Privacy-Sensitive Features for Speech Detection in Multiparty Conversations

S. H. K. Parthasarathi; M. Magimai.-Doss; H. Bourlard; D. Gatica-Perez 

2009

Speaker Change Detection with Privacy-Preserving Audio Cues

S. H. K. Parthasarathi; M. Magimai.-Doss; D. Gatica-Perez; H. Bourlard 

2009

Retrieving Ancient Maya Glyphs with Shape Context

E. Roman-Rangel; C. Pallan; J-M. Odobez; D. Gatica-Perez 

2009. 2009 IEEE 12th International Conference on Computer Vision Workshops, ICCV Workshops, Kyoto, Japan, p. 988-995. DOI : 10.1109/ICCVW.2009.5457594.

Investigating Privacy-Sensitive Features for Speech Detection in Multiparty Conversations

S. H. K. Parthasarathi; M. Magimai.-Doss; H. Bourlard; D. Gatica-Perez 

2009.  p. 2243-2246. DOI : 10.21437/Interspeech.2009-637.

Speaker Change Detection with Privacy-Preserving Audio Cues

S. H. K. Parthasarathi; M. Magimai.-Doss; D. Gatica-Perez; H. Bourlard 

2009. 

Flickr Hypergroups

R-A. Negoescu; B. Adams; D. Phung; S. Venkatesh; D. Gatica-Perez 

2009.  p. 813–816. DOI : 10.1145/1631272.1631421.

Contextual classification of image patches with latent aspect models

F. Monay; P. Quelhas; J-M. Odobez; D. Gatica-Perez 

EURASIP Journal on Image and Video Processing. 2009.  p. 602920. DOI : 10.1155/2009/602920.

Characterising Conversationsal Group Dynamics Using Nonverbal Behaviour

D. B. Jayagopi; R. Bogdan; D. Gatica-Perez 

2009. 

Discovering Group Nonverbal Conversational Patterns with Topics

D. B. Jayagopi; D. Gatica-Perez 

2009. 

Tagging and Retrieving Images with Co-Occurrence Models: from Corel to Flickr

N. Garg; D. Gatica-Perez 

2009

Learning and Predicting Multimodal Daily Life Patterns from Cell Phones

K. Farrahi; D. Gatica-Perez 

2009. ICMI-MLMI. p. 277–280. DOI : 10.1145/1647314.1647373.

Wearing a YouTube hat: directors, comedians, gurus, and user aggregated behavior

J-I. Biel; D. Gatica-Perez 

2009.  p. 833–836. DOI : 10.1145/1631272.1631426.

2008

Analyzing Flickr Groups

R-A. Negoescu; D. Gatica-Perez 

2008

Topickr: Flickr Groups and Users Reloaded

R-A. Negoescu; D. Gatica-Perez 

2008

Predicting the dominant clique in meetings through fusion of nonverbal cues

D. B. Jayagopi; H. Hung; C. Yeo; D. Gatica-Perez 

2008

Associating Audio-Visual Activity Cues in a Dominance Estimation Framework

H. Hung; Y. Huang; C. Yeo; D. Gatica-Perez 

2008. First IEEE Workshop on CVPR for Human Communicative Behavior Analysis. DOI : 10.1109/CVPRW.2008.4563178.

Identifying Dominant People in Meetings from Audio-Visual Sensors

H. Hung; D. Gatica-Perez 

2008

Associating Audio-Visual Activity Cues in a Dominance Estimation Framework

H. Hung; Y. Huang; C. Yeo; D. Gatica-Perez 

2008

Discovering Human Routines from Cell Phone Data with Topic Models

K. Farrahi; D. Gatica-Perez 

2008

What Did You Do Today? Discovering Daily Routines from Large-Scale Mobile Data

K. Farrahi; D. Gatica-Perez 

2008

Tracking the visual focus of attention for a varying number of wandering people

K. C. Smith; S. O. Ba; J-M. Odobez; D. Gatica-Perez 

IEEE Transactions on Pattern Analysis and Machine Intelligence. 2008. Vol. 30, num. 7, p. 1212-1229. DOI : 10.1109/TPAMI.2007.70773.

Analyzing Flickr Groups

R-A. Negoescu; D. Gatica-Perez 

2008. 2008 international conference on Content-based image and video retrieval, Niagara Falls, Canada, p. 417–426. DOI : 10.1145/1386352.1386406.

Topickr: Flickr Groups and Users Reloaded

R-A. Negoescu; D. Gatica-Perez 

2008. 16th ACM international conference on Multimedia, Vancouver, Canada, p. 857–860. DOI : 10.1145/1459359.1459505.

Modeling Dominance in Group Conversations using NonVerbal Activity Cues

D. B. Jayagopi; H. Hung; C. Yeo; D. Gatica-Perez 

IEEE Transactions on Audio, Speech and Language Processing. 2008. Vol. 17, num. 3, p. 501-513. DOI : 10.1109/TASL.2008.2008238.

Predicting the Dominant Clique in Meetings through Fusion of Nonverbal Cues

D. B. Jayagopi; H. Hung; C. Yeo; D. Gatica-Perez 

2008. ACM MM 2008. p. 809–812. DOI : 10.1145/1459359.1459493.

Investigating Automatic Dominance Estimation in Groups From Visual Attention and Speaking Activity

H. Hung; D. B. Jayagopi; S. O. Ba; J-M. Odobez; D. Gatica-Perez 

2008. International Conference on Multi-modal Interfaces. p. 233–236. DOI : 10.1145/1452392.1452441.

Estimating the dominant person in multi-party conversations using speaker diarization strategies

H. Hung; Y. Huang; G. Friedland; D. Gatica-Perez 

2008. IEEE International Conference on Acoustics, Speech, and Signal Processing. p. 2197-2200. DOI : 10.1109/ICASSP.2008.4518080.

Identifying Dominant People in Meetings from Audio-Visual Sensors

H. Hung; D. Gatica-Perez 

2008. International Conference on Automatic Face and Gesture Recognition, Amsterdam, The Netherlands, DOI : 10.1109/AFGR.2008.4813460.

Daily Routine Classification from Mobile Phone Data

K. Farrahi; D. Gatica-Perez 

2008. Workshop on Machine Learning and Multimodal Interaction (MLMI08). p. 173–184. DOI : 10.1007/978-3-540-85853-9_16.

Discovering Human Routines from Cell Phone Data with Topic Models

K. Farrahi; D. Gatica-Perez 

2008. IEEE International Symposium on Wearable Computers (ISWC). p. 29-32. DOI : 10.1109/ISWC.2008.4911580.

What Did You Do Today? Discovering Daily Routines from Large-Scale Mobile Data

K. Farrahi; D. Gatica-Perez 

2008. ACM International Conference on Multimedia (ACMMM). p. 849–852. DOI : 10.1145/1459359.1459503.

Predicting Two Facets of Social Verticality in Meetings from Five-Minute Time Slices and Nonverbal Cues

D. B. Jayagopi; S. O. Ba; J-M. Odobez; D. Gatica-Perez 

2008. 

2007

ESTIMATING THE DOMINANT PERSON IN MULTI-PARTY CONVERSATIONS USING SPEAKER DIARIZATION STRATEGIES

H. Hung; D. Gatica-Perez; Y. Huang; G. Friedland 

2007

Using Audio and Video Features to Classify the Most Dominant Person in a Group Meeting

H. Hung; D. B. Jayagopi; C. Yeo; G. Friedland; S. O. Ba et al. 

2007

Daily Routine Classification from Mobile Phone Data

K. Farrahi; D. Gatica-Perez 

2007

A Thousand Words in a Scene

P. Quelhas; J-M. Odobez; D. Gatica-Perez; T. Tuytelaars 

IEEE Transactions on Pattern Analysis and Machine Intelligence. 2007. Vol. 29, num. 9, p. 1575-1589. DOI : 10.1109/TPAMI.2007.1155.

Unsupervised Speech/Non-speech Detection for Automatic Speech Recognition in Meeting Rooms

H. K. Maganti; P. Motlicek; D. Gatica-Perez 

2007. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP). p. 1037-1040. DOI : 10.1109/ICASSP.2007.367250.

Modeling semantic aspects for cross-media image indexing

F. Monay; D. Gatica-Perez 

IEEE Transactions on Pattern Analysis and Machine Intelligence. 2007. Vol. 29, num. 10, p. 1802-1817. DOI : 10.1109/TPAMI.2007.1097.

Human-Centered Computing: Toward a Human Revolution

A. Jaimes; D. Gatica-Perez; N. Sebe; T. S. Huang 

2007

Human-centered Computing: Toward a Human Revolution

A. Jaimes; D. Gatica-Perez; N. Sebe; T. S. Huang 

IEEE Computer. 2007. Vol. 40, num. 5, p. 30-34. DOI : 10.1109/MC.2007.169.

Using Audio and Video Features to Classify the Most Dominant Person in a Group Meeting

H. Hung; D. B. Jayagopi; C. Yeo; G. Friedland; S. O. Ba et al. 

2007. MM07: The 15th ACM International Conference on Multimedia 2007, Augsburg Germany, September 25 – 29, 2007. p. 835–838. DOI : 10.1145/1291233.1291423.

Bayesian methods for visual multi-object tracking with applications to human activity recognition

K. Smith / H. Bourlard; D. Gatica-Perez (Dir.)  

Lausanne, EPFL, 2007. 

Learning the structure of image collections with latent aspect models

F. Monay / H. Bourlard; D. Gatica-Perez (Dir.)  

Lausanne, EPFL, 2007. 

2006

Detection and Application of Influence Rankings in Small Group Meetings

R. Rienks; D. Zhang; D. Gatica-Perez; W. Post 

2006

Exploring Contextual Information in a Layered Framework for Group Action Recognition

D. Zhang; D. Gatica-Perez; S. Bengio 

2006

Detecting Abandoned Luggage Items in a Public Space

K. C. Smith; P. Quelhas; D. Gatica-Perez 

2006

Multi-Person Tracking in Meetings: A Comparative Study

K. C. Smith; S. Schreiber; V. Beran; I. Potúcek; G. Rigoll et al. 

2006

2D Multi-Person Tracking: A Comparative Study in AMI Meetings

K. C. Smith; S. Schreiber; V. Beran; I. Potúcek; G. Rigoll et al. 

2006

Speaker Localization for Microphone Array-Based ASR: The Effects of Accuracy on Overlapping Speech

H. K. Maganti; D. Gatica-Perez 

2006

Analyzing Group Interactions in Conversations: a Review

D. Gatica-Perez 

2006

Detection and Application of Influence Rankings in Small Group Meetings

R. Rienks; D. Zhang; D. Gatica-Perez; W. Post 

2006. Eighth International Conference on Multimodal Interfaces (ICMI’06). p. 257–264. DOI : 10.1145/1180995.1181047.

Exploring Contextual Information in a Layered Framework for Group Action Recognition

D. Zhang; D. Gatica-Perez; S. Bengio 

2006. In the Eighth International Conference on Multimodal Interfaces (ICMI’06).

Modeling Interactions from Email Communication

D. Gatica-Perez; D. Zhang; S. Bengio 

2006. IEEE International Conference on Multimedia & Expo (ICME), 2006. p. 2037-2040. DOI : 10.1109/ICME.2006.262614.

Tracking Attention for Multiple People: Wandering Visual Focus of Attention Estimation

K. C. Smith; S. O. Ba; J-M. Odobez; D. Gatica-Perez 

2006

Detecting Abandoned Luggage Items in a Public Space

K. C. Smith; P. Quelhas; D. Gatica-Perez 

2006. IEEE Performance Evaluation of Tracking and Surveillance Workshop (PETS).

Multi-Person Tracking in Meetings: A Comparative Study

K. C. Smith; S. Schreiber; V. Beran; I. Potúcek; G. Rigoll et al. 

2006. Multimodal Interaction and Related Machine Learning Algorithms (MLMI). p. 88–101. DOI : 10.1007/11965152_8.

Tracking the Multi Person Wandering Visual Focus of Attention

K. C. Smith; S. O. Ba; D. Gatica-Perez; J-M. Odobez 

2006. International Conference on Multimodal Interfaces (ICMI06). p. 265–272. DOI : 10.1145/1180995.1181048.

2D Multi-Person Tracking: A Comparative Study in AMI Meetings

K. C. Smith; S. Schreiber; V. Beran; I. Potúcek; G. Rigoll et al. 

2006. Classification of Events, Activities, and Relationships (CLEAR) 2006. p. 331–344. DOI : 10.1007/978-3-540-69568-4_31.

Unsupervised Speech/Non-speech Detection for Automatic Speech Recognition in Meeting Rooms

H. K. Maganti; P. Motlicek; D. Gatica-Perez 

2006

Speaker Localization for Microphone Array-Based ASR: The Effects of Accuracy on Overlapping Speech

H. K. Maganti; D. Gatica-Perez 

2006.  p. 35–38. DOI : 10.1145/1180995.1181004.

Analyzing Group Interactions in Conversations: a Review

D. Gatica-Perez 

2006.  p. 41-46. DOI : 10.1109/MFI.2006.265658.

Audio-visual probabilistic tracking of multiple speakers in meetings

D. Gatica-Perez; G. Lathoud; J-M. Odobez; I. A. McCowan 

IEEE Transactions on Audio, Speech, and Language Processing. 2006. Vol. 15, num. 2, p. 601-616. DOI : 10.1109/TASL.2006.881678.

Finding groups of people in Google news

D. Joshi; D. Gatica-Perez 

2006. ACM Int. Conf. on Human-Centered Multimedia (HCM). p. 55–64. DOI : 10.1145/1178745.1178757.

Probabilistic graphical models for human interaction analysis

D. Zhang / H. Bourlard; D. Gatica-Perez (Dir.)  

Lausanne, EPFL, 2006. 

Speech Enhancement and Recognition in Meetings with an Audio-Visual Sensor Array

H. K. Maganti; D. Gatica-Perez; I. A. McCowan 

2006

Integrating co-occurrence and spatial contexts on patch-based scene segmentation

F. Monay; P. Quelhas; J-M. Odobez; D. Gatica-Perez 

2006. Beyond Patches Workshop, in conjunction with CVPR. p. 14. DOI : 10.1109/CVPRW.2006.102.

Constructing visual models with a latent space approach

F. Monay; P. Quelhas; D. Gatica-Perez; J-M. Odobez 

2006. Statistical and Optimization Perspectives Workshop, SLSFS 2005, Bohinj, Slovenia, February 23-25, 2005. p. 115-126. DOI : 10.1007/11752790_7.

Embedding Motion in Model-Based Stochastic Tracking

J-M. Odobez; D. Gatica-Perez; S. O. Ba 

IEEE Transactions on Image Processing. 2006. Vol. 15, num. 11, p. 3514-3530. DOI : 10.1109/TIP.2006.877497.

2005

Modeling semantic aspects for cross-media image indexing

F. Monay; D. Gatica-Perez 

2005

Finding groups of people in Google news

D. Joshi; D. Gatica-Perez 

2005

Integrating co-occurrence and spatial contexts on patch-based scene segmentation

F. Monay; P. Quelhas; J-M. Odobez; D. Gatica-Perez 

2005

Audio-visual probabilistic tracking of multiple speakers in meetings

D. Gatica-Perez; G. Lathoud; J-M. Odobez; I. A. McCowan 

2005

Speech Acquisition in Meetings with an Audio-Visual Sensor Array

I. A. McCowan; M. H. Krishna; D. Gatica-Perez; D. Moore; S. O. Ba 

2005.  p. 1382-1385. DOI : 10.1109/ICME.2005.1521688.

Multimodal Multispeaker Probabilistic Tracking in Meetings

D. Gatica-Perez; G. Lathoud; J-M. Odobez; I. A. McCowan 

2005. Int. Conf. on Multimodal Interfaces (ICMI). p. 183–190. DOI : 10.1145/1088463.1088496.

Tracking People in Meetings with Particles

D. Gatica-Perez; J-M. Odobez; S. O. Ba; K. C. Smith; G. Lathoud 

2005. Int. Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS), invited paper.

Semi-supervised Meeting Event Recognition with Adapted HMMs

D. Zhang; D. Gatica-Perez; S. Bengio 

2005

Semi-supervised Meeting Event Recognition with Adapted HMMs

D. Zhang; D. Gatica-Perez; S. Bengio 

2005. DOI : 10.1109/ICME.2005.1521618.

Multimodal Integration for Meeting Group Action Segmentation and Recognition

M. Al-Hames; A. Dielmann; D. Gatica-Perez; S. Reiter; S. Renals et al. 

2005. MLMI. p. 52–63. DOI : 10.1007/11677482_5.

Semi-supervised Adapted HMMs for Unusual Event Detection

D. Zhang; D. Gatica-Perez; S. Bengio; I. A. McCowan 

2005.  p. 611-618. DOI : 10.1109/CVPR.2005.316.

Multimodal Integration for Meeting Group Action Segmentation and Recognition

M. Al-Hames; A. Dielmann; D. Gatica-Perez; S. Reiter; S. Renals et al. 

2005

Detecting Group Interest-level in Meetings

D. Gatica-Perez; I. A. McCowan; D. Zhang; S. Bengio 

2005.  p. 489-492. DOI : 10.1109/ICASSP.2005.1415157.

Tracking the Multi Person Wandering Visual Focus of Attention

K. C. Smith; S. O. Ba; D. Gatica-Perez; J-M. Odobez 

2005

Modeling Interactions from Email Communication

D. Zhang; D. Gatica-Perez; D. Roy; S. Bengio 

2005

Modeling Scenes with Local Descriptors and Latent Aspects

P. Quelhas; F. Monay; J-M. Odobez; D. Gatica-Perez; T. Tuytelaars et al. 

2005.  p. 883-890. DOI : 10.1109/ICCV.2005.152.

Constructing visual models with a latent space approach

F. Monay; P. Quelhas; D. Gatica-Perez; J-M. Odobez 

2005

AV16.3: an Audio-Visual Corpus for Speaker Localization and Tracking

G. Lathoud; J-M. Odobez; D. Gatica-Perez 

2005. First International Workshop, MLMI 2004, Martigny, Switzerland, June 21-23, 2004. p. 182-195. DOI : 10.1007/978-3-540-30568-2_16.

Speech Acquisition in Meetings with an Audio-Visual Sensor Array

I. A. McCowan; M. H. Krishna; D. Gatica-Perez; D. Moore; S. O. Ba 

2005

Extracting Information from Multimedia Meeting Collections

D. Gatica-Perez; D. Zhang; S. Bengio 

2005. 7th ACM SIGMM International Workshop on Multimedia Information Retrieval. p. 245–252. DOI : 10.1145/1101826.1101865.

Extracting Information from Multimedia Meeting Collections

D. Gatica-Perez; D. Zhang; S. Bengio 

2005

Learning influence among interacting Markov chains

D. Zhang; D. Gatica-Perez; S. Bengio; D. Roy 

2005. NIPS.

Learning influence among interacting Markov chains

D. Zhang; D. Gatica-Perez; S. Bengio; D. Roy 

2005

Automatic Analysis of Multimodal Group Actions in Meetings

I. A. McCowan; D. Gatica-Perez; S. Bengio; G. Lathoud; M. Barnard et al. 

IEEE Transactions on Pattern Analysis and Machine Intelligence. 2005. Vol. 27, num. 3, p. 305-317. DOI : 10.1109/TPAMI.2005.49.

2004

Modeling Individual and Group Actions in Meetings With Layered HMMs

D. Zhang; D. Gatica-Perez; S. Bengio; I. A. McCowan; G. Lathoud 

IEEE Transactions on Multimedia. 2004. Vol. 8, num. 3, p. 509-520. DOI : 10.1109/TMM.2006.870735.

Multimodal Multispeaker Probabilistic Tracking in Meetings

D. Gatica-Perez; G. Lathoud; J-M. Odobez; I. A. McCowan 

2004

Tracking People in Meetings with Particles

D. Gatica-Perez; J-M. Odobez; S. O. Ba; K. C. Smith; G. Lathoud 

2004

On the Use of Information Retrieval Measures for Speech Recognition Evaluation

I. A. McCowan; D. Moore; J. Dines; D. Gatica-Perez; M. Flynn et al. 

2004

Detecting Group Interest-level in Meetings

D. Gatica-Perez; I. A. McCowan; D. Zhang; S. Bengio 

2004

Embedding motion in model-based stochastic tracking

J-M. Odobez; D. Gatica-Perez 

2004. 17th Int. Conf. Pattern Recognition (ICPR), Cambridge, UK, p. 815-818. DOI : 10.1109/ICPR.2004.1334383.

Modeling Scenes with Local Descriptors and Latent Aspects

P. Quelhas; F. Monay; J-M. Odobez; D. Gatica-Perez; T. Tuytelaars et al. 

2004

AV16.3: an Audio-Visual Corpus for Speaker Localization and Tracking

G. Lathoud; J-M. Odobez; D. Gatica-Perez 

2004

PLSA-based Image Auto-Annotation: Constraining the Latent Space

F. Monay; D. Gatica-Perez 

2004

Motion likelihood and proposal modeling in Model-Based Stochastic Tracking

J-M. Odobez; D. Gatica-Perez 

2004

PLSA-based Image Auto-Annotation: Constraining the Latent Space

F. Monay; D. Gatica-Perez 

2004. ACM Int. Conf. on Multimedia (ACM MM). p. 348–351. DOI : 10.1145/1027527.1027608.

Multimodal Group Action Clustering in Meetings

D. Zhang; D. Gatica-Perez; S. Bengio; I. A. McCowan; G. Lathoud 

2004. ACM 2nd International Workshop on Video Surveillance & Sensor Networks in conjunction with 12th ACM International Conference on Multimedia. p. 54–62. DOI : 10.1145/1026799.1026810.

Modeling Individual and Group Actions in Meetings With Layered HMMs

D. Zhang; D. Gatica-Perez; S. Bengio; I. A. McCowan; G. Lathoud 

2004

Multimodal Group Action Clustering in Meetings

D. Zhang; D. Gatica-Perez; S. Bengio; I. A. McCowan; G. Lathoud 

2004

Modeling Individual and Group Actions in Meetings: a Two-Layer HMM Framework

D. Zhang; D. Gatica-Perez; S. Bengio; I. A. McCowan; G. Lathoud 

2004

Order Matters: A Distributed Sampling Method for Multi-Object Tracking

K. C. Smith; D. Gatica-Perez 

2004. British Machine Vision Conference (BMVC). p. 25-32.

Assessing Scene Structuring in Consumer Videos

D. Gatica-Perez; N. Triroj; J-M. Odobez; A. Loui; M-T. Sun 

2004. Int. Conf. on Image and Video Retrieval (CIVR).

Modeling Individual and Group Actions in Meetings: a Two-Layer HMM Framework

D. Zhang; D. Gatica-Perez; S. Bengio; I. A. McCowan; G. Lathoud 

2004. Second IEEE Workshop on Event Mining: Detection and Recognition of Events in Video, In Association with CVPR. DOI : 10.1109/CVPR.2004.399.

Real-Time Face Detection Using Boosting Learning in Hierarchical Feature Spaces

D. Zhang; S. Z. Li; D. Gatica-Perez 

2004. International Conference on Pattern Recognition (ICPR). p. 411-414. DOI : 10.1109/ICPR.2004.1334238.

Semi-supervised Adapted HMMs for Unusual Event Detection

D. Zhang; D. Gatica-Perez; S. Bengio 

2004

Assessing Scene Structuring in Consumer Videos

D. Gatica-Perez; N. Triroj; J-M. Odobez; A. Loui; M-T. Sun 

2004

2003

Embedding Motion in Model-Based Stochastic Tracking

J-M. Odobez; D. Gatica-Perez; S. O. Ba 

2003

Automatic Analysis of Multimodal Group Actions in Meetings

I. A. McCowan; D. Gatica-Perez; S. Bengio; G. Lathoud; M. Barnard et al. 

2003

Real-Time Face Detection Using Boosting Learning in Hierarchical Feature Spaces

D. Zhang; S. Z. Li; D. Gatica-Perez 

2003

Meeting Data Collection Specifications

I. A. McCowan; D. Gatica-Perez; S. Bengio 

2003

Towards Computer Understanding of Human Interactions

I. A. McCowan; D. Gatica-Perez; S. Bengio; H. Bourlard 

2003

An Implicit Motion Likelihood for Tracking with Particle Filters

J-M. Odobez; S. O. Ba; D. Gatica-Perez 

2003. British Machine Vision Conference (BMVC), Norwich, UK, September, 2003. p. 70.1-70.10. DOI : 10.5244/C.17.70.

Video Shot Clustering using Spectral Methods

J-M. Odobez; D. Gatica-Perez; M. Guillemot 

2003. 3rd Workshop on Content-Based Multimedia Indexing (CBMI).

Spectral Structuring of Home Videos

J-M. Odobez; D. Gatica-Perez; M. Guillemot 

2003. International Conference on Image and Video Retrieval (CIVR’03), Urbana-Champaign, IL, USA, July 24–25, 2003. p. 310-320. DOI : 10.1007/3-540-45113-7_31.

An Implicit Motion Likelihood for Tracking with Particle Filters

J-M. Odobez; S. O. Ba; D. Gatica-Perez 

2003

On Image Auto-Annotation with Latent Space Models

F. Monay; D. Gatica-Perez 

2003. ACM Int. Conf. on Multimedia (ACM MM). p. 275–278. DOI : 10.1145/957013.957070.

Finding Structure in Home Videos by Probabilistic Hierarchical Clustering

D. Gatica-Perez; A. Loui; M-T. Sun 

IEEE Transactions on Circuits and Systems for Video Technology. 2003. Vol. 13, num. 6, p. 539-548. DOI : 10.1109/TCSVT.2003.813428.

A Hierarchical Keyframe User Interface for Browsing Video over the Internet

M. Guillemot; P. Wellner; D. Gatica-Perez; J-M. Odobez 

2003. Proceedings of the 9th International Conference on Human-Computer Interaction (INTERACT-2003).

On automatic annotation of meeting databases

D. Gatica-Perez; I. A. McCowan; M. Barnard; S. Bengio; H. Bourlard 

2003

On automatic annotation of meeting databases

D. Gatica-Perez; I. A. McCowan; M. Barnard; S. Bengio; H. Bourlard 

2003. IEEE International Conference on Image Processing (ICIP). p. 629-632. DOI : 10.1109/ICIP.2003.1247323.

A Mixed-State I-Particle Filter for Multi-Camera Speaker Tracking

D. Gatica-Perez; G. Lathoud; I. A. McCowan; J-M. Odobez 

2003. IEEE International Conference on Computer Vision Workshop on Multimedia Technologies for E-Learning and Collaboration (ICCV-WOMTEC).

Audio-Visual Speaker Tracking with Importance Particle Filters

D. Gatica-Perez; G. Lathoud; I. A. McCowan; J-M. Odobez; D. Moore 

2003. IEEE International Conference on Image Processing (ICIP). p. 25-28. DOI : 10.1109/ICIP.2003.1247172.

Object Localization in Metric Spaces for Video Linking

D. Gatica-Perez; M-T. Sun 

2003

On Automatic Annotation of Images with Latent Space Models

F. Monay; D. Gatica-Perez 

2003

A Mixed-State I-Particle Filter for Multi-Camera Speaker Tracking

D. Gatica-Perez; G. Lathoud; I. A. McCowan; J-M. Odobez 

2003

Modeling Human Interaction in Meetings

I. A. McCowan; S. Bengio; D. Gatica-Perez; G. Lathoud; F. Monay et al. 

2003. International Conference on Acoustics, Speech and Signal Processing, Hong Kong, 06-10 April 2003. p. 748-751. DOI : 10.1109/ICASSP.2003.1202751.

A Hierarchical Keyframe User Interface for Browsing Video over the Internet

M. Guillemot; P. Wellner; D. Gatica-Perez; J-M. Odobez 

2003

2002

Object Localization in Metric Spaces for Video Linking

D. Gatica-Perez; M-T. Sun 

2002. IEEE Workshop on Motion and Video Computing. p. 78-83. DOI : 10.1109/MOTION.2002.1182217.

On Spectral Methods and the Structuring of Home Videos

J-M. Odobez; D. Gatica-Perez; M. Guillemot 

2002

Finding Structure in Consumer Videos by Probabilistic Hierarchical Clustering

D. Gatica-Perez; A. Loui; M-T. Sun 

2002

Modeling Human Interaction in Meetings

I. A. McCowan; S. Bengio; D. Gatica-Perez; G. Lathoud; F. Monay et al. 

2002

Linking Objects in Videos by Importance Sampling

D. Gatica-Perez; M-T. Sun 

2002

Linking Objects in Videos by Importance Sampling

D. Gatica-Perez; M-T. Sun 

2002. IEEE International Conference on Multimedia and Expo. p. 525-528. DOI : 10.1109/ICME.2002.1035666.

Probabilistic Home Video Structuring: Feature Selection and Performance Evaluation

D. Gatica-Perez; M-T. Sun; A. Loui 

2002. IEEE International Conference on Image Processing. DOI : 10.1109/ICIP.2002.1038094.

Algorithms for Video Structuring

M. Guillemot; J-M. Odobez; D. Gatica-Perez 

2002

Probabilistic Home Video Structuring: Feature Selection and Performance Evaluation

D. Gatica-Perez; M-T. Sun; A. Loui 

2002

Audio-Visual Speaker Tracking with Importance Particle Filters

D. Gatica-Perez; G. Lathoud; I. A. McCowan; J-M. Odobez; D. Moore 

2002