Areas of Research

Databases, Information Retrieval, Web Search: distributed search over text databases, information extraction, event identification in social media, text mining.

• Publications and Patents (from DBLP)
• CV

Some Past and Current Research Projects

• Information Extraction at Columbia (DBRank '11 paper, WebDB '10 paper, ICDE '09 paper, SIGMOD Record '08 paper, ICDE '08 paper, TODS '07 paper, SIGMOD '06 paper)
• Event identification in social media (WSDM '12 paper, JASIST '11 paper, ICWSM '11 paper (a), ICWSM '11 paper (b), WSDM '10 paper, SSM '10 poster)
  
• QProber, a system for automatically classifying and searching "hidden-web" text databases (TOIS '08 paper, TODS '07 paper, ICDE '05 paper, SIGMOD '04 paper, TOIS '03 paper, VLDB '02 paper, March '02 IEEE Data Engineering Bulletin paper)
• RANK: Top-k query processing (over relational databases: TODS '02 paper; over web-accessible databases: TODS '04 paper; over multimedia databases: TKDE '04 paper)
• Snowball and QXtract, building blocks for efficient information extraction (ICDE '03 paper [errata], WebDB '03 paper, DL '00 paper)
• SDARTS, a protocol and toolkit for metasearching (JCDL '02 paper, JCDL '01 paper)
• GeoSearch, a geographically-aware search engine (CIKM '03 paper, VLDB '00 paper)

Ph.D. Students

• Eugene Agichtein (graduated 5/2005; first employment: Postdoc Researcher, Microsoft Research; current employment: Associate Professor, Department of Mathematics and Computer Science, Emory University)
• Pablo Barrio
• Hila Becker (graduated 10/2011; current employment: Software Engineer, Search Quality, Google)
  
• Nicolás Bruno (graduated 5/2003; first employment: Researcher, Microsoft Research; current employment: Principal Software Developer Engineer, Bing, Microsoft)
• Wisam Dakka (graduated 11/2008; current employment: Software Engineer, Search Quality, Google)
• Joshua Gordon
  
• Panagiotis Ipeirotis (graduated 9/2004; current employment: Associate Professor, Stern School of Business, New York University)
• Alpa Jain (graduated 9/2008; first employment: Scientist, Yahoo! Labs; current employment: Senior Software Engineer, Twitter)
• Amélie Marian (graduated 9/2005; current employment: Associate Professor, Department of Computer Science, Rutgers University)
• Ioannis Paparrizos
• Fotis Psallidas
  
• Gonçalo Simões (co-advised by Helena Galhardas)

Some Recent Professional Activities

• ACM Transactions on Database Systems: associate editor (2004-2010)
  
• ACM Transactions on Information Systems: associate editor (1997-2005)
• IEEE Data Engineering Bulletin: associate editor (2000-2002)
  • Editor, Special Issue on "Text and Databases," December 2001
  • Editor, Special Issue on "Next-Generation Web Search," September 2000
    
    
• ICDE 2011 Industrial Track: program committee member
• VLDB 2011: workshop program co-chair
• WebDB 2011: program committee member
  
• SIGMOD 2012: program chair
  

Teaching and Advising: No Office Hours in Spring 2013 and Fall 2013

I will be on sabbatical in Spring 2013 and Fall 2013, so I will not be teaching or holding office hours during these two semesters.

Biographical Sketch

Luis Gravano has been on the faculty of the Computer Science Department, Columbia University, since September 1997, where he has been an associate professor since July 2002. From January through August 2001, Luis was a Senior Research Scientist at Google (on leave from Columbia University). He received his Ph.D. degree in Computer Science from Stanford University in 1997. He also received an M.S. degree from Stanford University in 1994 and a B.S. degree from the Escuela Superior Latinoamericana de Informática (ESLAI), Argentina, in 1991. Luis is a recipient of a CAREER award from the National Science Foundation.

Other Resources

• Spring '08 North East DB/IR Day, held on April 18, 2008, at Columbia University

• DBLP Bibliography Server
• ACM SIGMOD
• VLDB Foundation
• Stanford Database Group

• Owlie Boo, computer games for toddlers and beyond, by my brother Matías and his wife, Victoria (en español: El Búho Boo)