Fotis Psallidas

Current: PhD in Computer Science, CS@CU
M.Sc., Computer Science, Columbia University
B.Sc., Computer Science, Dept. of I&T at U.O.A.
Mobile Contact +1 646 318 8835
Office 530 West 120th Street, CEPSR 704
e-Contact fotis [at] cs.columbia.edu
Curriculum Vitae [pdf] - [ps] - [text]

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Projects
  • Composing Interactive Data Visualizations
  • Event Characterization
  • Information Extraction from Social Media: Detecting Disease Outbreaks
  • SocWeb: Searching the Social Web

Research Interests
  • Query Optimization
  • Interactive Data Exploration
  • Data Visualization and Declarative Analytics

Publications
E. Wu, F. Psallidas, Z. Miao, H. Zhang, L. Rettig, Y. Wu, and T. Sellam Combining Design and Performance in a Data Visualization Management System
In Proc. of the Conference on Innovative Database Research, CIDR, 2017.
F. Psallidas, B. Ding, K. Chakrabarti, and S. Chaudhuri S4: Top-k Spreadsheet-Style Search for Query Discovery
In Proc. of the 2015 ACM SIGMOD International Conference on Management of Data, SIGMOD, 2015.
F. Psallidas, H. Becker, M. Naaman, and L. Gravano Effective Event Identification in Social Media
In IEEE Data Engineering Bulletin -- Special Issue of Social Media Analytics, 2013.
F. Psallidas, A. Ntoulas, and A. Delis SocWeb: Efficient Monitoring of Social Network Activities
In Proc. of the 2013 International Conference on Web Information System Engineering, WISE, 2013. [slides]
K. Tsakalozos, S. Evangelatos, F. Psallidas, M. Vieira, V. Tsotras, and A. Delis. DiVA: using Application-specific Policies to "Dive" lnto Vector Approximations.
The Computer Journal, 2015.

Posters and Demos

Portfolio