I am a PhD student and Sessional Instructor at the Department of Computer Science , University of Toronto  working with Prof. Nick Koudas . I spent the summer of 2009 and the summer of 2010 at Yahoo! Labs, Barcelona  working with the Social Media Group and the Usage Mining and Link Analysis Group respectively.

Research Interests

  • Data Mining & Knowledge Discovery
  • Databases & Search
  • Recommendation Algorithms, Trust & Personalization
  • Computational Social Science
PhD focus

My PhD research focuses on the algorithmic and computational issues involved in the study of online social interactions and processes. On the one hand is related to the formal understanding of principles and models of social interaction and processes that are persistent in online social media, and on the other hand is related to the design and development of algorithms and methods that aim to support social interactions and processes on the web. The nature of these problems requires an interdisciplinary research approach with questions and ideas owing from both social and computing sciences. Social sciences make available theories of social interactions and processes, while analysis of massive data sets informed by computational algorithms and models offer ample opportunities for research allowing to make progress on fundamental social science questions.

Read More


Bio Sketch

Before coming to Toronto, I received a B.Sc. and a M.Sc. from the Computer Science Department  of the University of Crete , Greece. During my graduate studies, I was also affiliated with the Institute of Computer Science , FORTH , working as a research fellow at the Information Systems Lab . There, I worked mainly with Prof. Dimitris Plexousakis  on Recommendation Algorithms and with Dr. Martin Doerr  on Heterogeneous Data Integration problems. My publications entry while at ICS-FORTH can be found here