"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."


I am a full professor of computer science in the Selim and Rachel Benin Department of Computer Science and Engineering at Hebrew University. My research focuses on both theoretical and practical aspects of database management systems. My list of publications is accessible via DBLP.



Over the years, I have done research on many different ares of databases, including: query equivalence, full disjunctions, imprecise querying, XML, aggregate functions, database generation, querying probabilistic data, link prediction, and social network databases. My current research focuses on team formation, learning queries from examples, data discovery, and clustering as a first-class database operator.

If you are a highly motivated student, with some background in the database area, and are considering working on a research project, you are welcome to contact me for details.



I have been a program committee member at:

  • PODS (2018, 2014, 2011, 2009, 2007)
  • ICDT (2016, 2014, 2013, 2011, 2010, 2009)
  • VLDB (2018, 2009, 2007)
  • SIGMOD (2015)
  • EDBT (2017, 2007)
  • ICDE (2019, 2016, 2015, 2010, 2007)
  • WebDB (2016)
  • NDA (2017)
  • DEXA (2009)
  • DBPL (2005)

I am on the steering and program committee for the annual Israeli Database Day.


I am married to Chaim and have seven children.