Areas of Research
Databases, Information
Retrieval, Web Search: distributed search over text
databases, information extraction, event identification in social
media, text mining.
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)
- 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
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 is a Professor of
Computer Science at Columbia University. Luis joined Columbia in
1997. In 2001, Luis was a Senior Research Scientist at Google (on
leave from Columbia). He received his Ph.D. degree in Computer
Science from Stanford University in 1997. He also received an M.S.
degree from Stanford in 1994 and a B.S. degree from the Escuela
Superior Latinoamericana de Informática (ESLAI), Argentina,
in 1991. His research interests are in databases, information
retrieval, and web search. Luis is a recipient of an NSF CAREER
award. He has received multiple best paper awards, including at
the ACM SIGMOD 2006 and IEEE ICDE 2005 conferences.
Other Resources
Luis Gravano
gravano@cs.columbia.edu
