Home

Person

Daniel Gatica-Perez

About
Privacy
Disclaimer

Graph Chatbot

Related publications (115)

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

Jean-Marc Odobez, Daniel Gatica-Perez, Rui Hu

Maya hieroglyphic analysis requires epigraphers to spend a significant amount of time browsing existing catalogs to identify individual glyphs. Automatic Maya glyph analysis provides an efficient way to assist scholars’ daily work. We introduce the Histogr ...

2017

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

Daniel Gatica-Perez, Oya Aran

Rapport has been recognized as an important aspect of relationship building. While rapport in the context of human-human interaction has been widely studied, how it can be established and maintained in human-agent interaction has been studied only recently ...

2017

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

Daniel Gatica-Perez, Darshan Santani

This work describes SenseCityVity, an approach to engage and support youth in a city in Mexico as they investigate, document, and reflect upon urban problems through mobile crowdsourcing. SenseCityVity focused on the development of a mobile crowdsourcing p ...

Ieee Computer Soc2017

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

Daniel Gatica-Perez, Darshan Santani

We developed the Geographical Proportional-to-size Street-Intercept Sampling (GPSIS) method in order to obtain a sample of nightlife-goers which accounted for the diversity of spaces, patrons and locations within two Swiss cities. Popular nightlife zones w ...

2017

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

Daniel Gatica-Perez, Joan Isaac Biel Tres

2017

Extracting Maya Glyphs from Degraded Ancient Documents via Image Segmentation

Jean-Marc Odobez, Daniel Gatica-Perez, Rui Hu

We present a system for automatically extracting hieroglyph strokes from images of degraded ancient Maya codices. Our system adopts a region-based image segmentation framework. Multi-resolution super-pixels are first extracted to represent each image. A Su ...

2017

Hirability in the wild: Analysis of online conversational video resumes

Laurent Son Nguyen, Daniel Gatica-Perez

Online social media is changing the personnel recruitment process. Until now, resumes were among the most widely used tools for the screening of job applicants. The advent of inexpensive sensors combined with the success of online video platforms has enabl ...

2016

Evaluating Shape Representations for Maya Glyph Classification

Jean-Marc Odobez, Daniel Gatica-Perez, Gülcan Can

Shape representations are critical for visual analysis of cultural heritage materials. This article studies two types of shape representations in a bag-of-words-based pipeline to recognize Maya glyphs. The first is a knowledge-driven Histogram of Orientati ...

2016

Stressful First Impressions in Job Interviews

Laurent Son Nguyen, Daniel Gatica-Perez, Skanda Muralidhar

Stress can impact many aspects of our lives, such as the way we interact and work with others, or the first impressions that we make. In the past, stress has most commonly been assessed through selfreported questionnaires; however, advancements in wearable ...

Assoc Computing Machinery2016

Anomaly detection in elderly daily behavior in ambient sensing environments

Daniel Gatica-Perez, Dairazalia Sanchez Cortes, Oya Aran

Current ubiquitous computing applications for smart homes aim to enhance people’s daily living respecting age span. Among the target groups of people, elderly are a population eager for “choices for living arrangements”, which would allow them to continue ...

Springer Int Publishing Ag2016

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

Laurent Son Nguyen, Jean-Marc Odobez, Daniel Gatica-Perez, Skanda Muralidhar, Denise Frauendorfer

First impressions play a critical role in the hospitality industry and have been shown to be closely linked to the behavior of the person being judged. In this work, we implemented a behavioral training framework for hospitality students with the goal of i ...

Assoc Computing Machinery2016

InnerView: Learning Place Ambiance from Social Media Images

Daniel Gatica-Perez, Darshan Santani, Rui Hu

In the recent past, there has been interest in characterizing the physical and social ambiance of urban spaces to understand how people perceive and form impressions of these environments based on physical and psychological constructs. Building on our earl ...

ACM2016

Theme issue from ISWC 2013

Daniel Roggen, Daniel Gatica-Perez

Springer London Ltd2015

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

Daniel Gatica-Perez, Dairazalia Sanchez Cortes

The prevalent “share what’s on your mind” paradigm of social media can be examined from the perspective of mood: short-term affective states revealed by the shared data. This view takes on new relevance given the emergence of conversational social video as ...

Assoc Computing Machinery2015

Signal Processing in the Workplace

Daniel Gatica-Perez

According to the U.S. Bureau of Labor Statistics, during 2013 employed Americans "worked an average of 7.6 hours on the days they worked," and "83% did some or all of their work at their workplace" [1]. Understanding processes in the workplace has been the ...

Ieee-Inst Electrical Electronics Engineers Inc2015

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

Daniel Gatica-Perez

Employment interviews are relevant scenarios for the study of social interaction. In this setting, social skills play an important role, even though the interactions between potential employers and candidates are often limited. One fundamental aspect of so ...

Ieee-Inst Electrical Electronics Engineers Inc2015

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

Daniel Gatica-Perez, Darshan Santani

New research cutting across architecture, urban studies, and psychology is contextualizing the understanding of urban spaces according to the perceptions of their inhabitants. One fundamental construct that relates place and experience is ambiance, which i ...

ACM2015

Mining Crowdsourced First Impressions in Online Social Video

Daniel Gatica-Perez, Joan Isaac Biel Tres

While multimedia and social computing research have used crowdsourcing techniques to annotate objects, actions, and scenes in social video sites like YouTube, little work has ad- dressed the crowdsourcing of personal and social traits in online social vide ...

2014

Automatic Maya Hieroglyph Retrieval Using Shape and Context Information

Jean-Marc Odobez, Daniel Gatica-Perez, Rui Hu

2014

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

Laurent Son Nguyen, Daniel Gatica-Perez, Denise Frauendorfer

Understanding the basis on which recruiters form hirability impressions for a job applicant is a key issue in organizational psychology and can be addressed as a social computing problem. We approach the problem from a face-to-face, nonverbal perspective w ...

2014

Page 4 of 6