Current research projects

We are currently carrying out research on the following topics:

Language use in social media

We are interested in understanding and characterizing aspects of online communication from a linguistic point of view and using a sociolinguistic approach to language variation.
Selected publications:
- How you post is who you are: Characterizing Google+ status updates across social groups
- He votes or she votes? Female and male discursive strategies in Twitter political hashtags
- Analyzing the dynamic evolution of hashtags on Twitter: A language-based approach

Online privacy

Online privacy involves the right of personal privacy concerning information pertaining to oneself on the Web. We study questions related to privacy disclosure and privacy policies on the Internet and, more specifically, in online social networks.
Selected publications:
- The Right to be Forgotten in the media: A data-driven study
- Beware of what you share: Inferring home location in social networks
- Facebook and privacy: The balancing act of personality, gender, and relationship currency
- Privacy attacks in social media using photo tagging networks: A case study with Facebook

System performance

We develop algorithms and tools to analyze large data produced by social media. To do so, we adopt cutting-edge, high-performance technology like distributed, parallel or heterogeneous processing.
Selected publications:
- Faster: A low overhead framework for massive data analysis

Urban informatics

Research on urban informatics uses data science resources to understand cities and to propose innovative sollutions to enhance human experience in urban environments.
Selected publications:
- Lightweight contextual ranking of city pictures: Urban sociology to the rescue
- Psychological Maps 2.0: A web engagement enterprise starting in London

User behavior in online social networks

We explore, in a variety of ways, features of user behavior in online social networking systems like Facebook, Google+, Instagram, Pinterest, Twitter and YouTube.
Selected publications:
- Characterizing videos, audience and advertising in Youtube channels for kids
- Stereotypes in search engine results: Understanding the role of local and global factors
- Dawn of the selfie era: The whos, wheres, and hows of selfies on Instagram
- Noticing the other gender on Google+
- Of pins and tweets: Investigating how users behave across image- and text-based social networks
- New kid on the block: Exploring the Google+ social graph