I am a researcher at NEC Labs America.
I got my doctoral degree in Computer Science from the
University of Maryland in 2008. My Ph.D. advisor was
Prof. Hanan Samet.
I got the best paper awards at the
SIGMOD 2008 and
ACM SIGPATIAL GIS 2008
conferences and a Best Journal Paper of 2007 Award
at the Computers & Graphics Journal.
My paper on distance oracles was
selected for the Best papers of ICDE 2009 TKDE special issue.
My doctoral dissertation
was nominated for the ACM Doctoral Dissertation Award
by the University of Maryland.
I was the poster chair for the ACM GIS 2007, ACM SIGPATIAL GIS 2008, and ACM SIGPATIAL GIS 2009 conferences.
I am the recipient of the Dean's fellowship award for excellence in research for the year 2007-2008
and co-organized the Dean's Fellows Lecture Series.
TwitterStand system which I developed was a finalist for the Best UM Invention of 2009 award.
Browse my publications by
year,
categories,
co-authors
- J.
Sankaranarayanan,
H. Samet
Roads belong in databases.
IEEE Data Engineering Bulletin, June
2010.
Invited paper, To appear.
- J.
Sankaranarayanan,
H. Samet
Image similarity retrieval in news.
In Proceedings of the 24th International Conference on Pattern
Recognition, Istanbul, Turkey, August
2010.
To appear.
Categories: [spatio-textual search
engine]
- J.
Sankaranarayanan,
H. Samet
Query processing using distance oracles for spatial networks.
IEEE Transactions on Knowledge and Data Engineering,
2010.
Best Papers of ICDE 2009 Special Issue. To appear.
Categories: [spatial
network]
- M.D. Lieberman,
H. Samet,
J.
Sankaranarayanan
Geotagging: Using proximity, sibling, and prominence clues to
understand comma groups.
In R. Purves, C. Jones, and P. Clough, editors, Proceedings of
6th Workshop on Geographic Information Retrieval, Zurich, Switzerland,
February
2010.[link]
Categories: [spatio-textual search
engine]
- M.D. Lieberman,
H. Samet,
J.
Sankaranarayanan
Geotagging with local lexicons to build indexes for
textually-specified spatial data.
In Proceedings of the 26th IEEE International Conference on
Data Engineering, pages 201-212, Long Beach, CA, March
2010.[link]
Categories: [spatio-textual search
engine]
- J.
Sankaranarayanan,
H. Samet,
B. Teitler,
M.D. Lieberman,
J. Sperling
TwitterStand: News in tweets.
In D. Agarwal, W. G. Aref, C.-T. Lu, M. F. Mokbel, P. Scheuermann,
C. Shahabi, and O. Wolfson, editors, Proceedings of the 17th ACM
SIGSPATIAL International Conference on Advances in Geographic Information
Systems, pages 42-51, Seattle, WA, November
2009.[link]
Categories: [spatio-textual search
engine]
- J.
Sankaranarayanan,
H. Samet,
H. Alborzi
Path oracles for spatial networks.
In Proceedings of the VLDB Endowment PVDB: Proceedings of the
35th International Conference on Very Large Data Bases (VLDB), volume 2,
pages 1210-1221, Lyon, France, August
2009.[link]
Categories: [spatial
network]
- J.
Sankaranarayanan,
H. Samet
Distance oracles for spatial networks.
In Proceedings of the 25th IEEE International Conference on
Data Engineering, pages 652-663, Shanghai, China, April
2009.[link]
Categories: [spatial
network]
- M.D. Lieberman,
H. Samet,
J.
Sankaranarayanan,
J. Sperling
Spatio-textual spreadsheets: Geotagging via spatial coherence.
In D. Agarwal, W. G. Aref, C.-T. Lu, M. F. Mokbel, P. Scheuermann,
C. Shahabi, and O. Wolfson, editors, Proceedings of the 17th ACM
SIGSPATIAL International Conference on Advances in Geographic Information
Systems, pages 524-527, Seattle, WA, November
2009.[link]
Categories: [spatio-textual search
engine]
- B. Teitler,
M. D. Lieberman,
D. Panozzo,
J.
Sankaranarayanan,
H. Samet,
J. Sperling
NewsStand: A new view on news.
In W. G. Aref, M. F. Mokbel, H. Samet, M. Schneider, C. Shahabi, and
O. Wolfson, editors, Proceedings of the 16th ACM SIGSPATIAL
International Conference on Advances in Geographic Information Systems,
pages 144-153, Irvine, CA, November
2008.[link]
Categories: [spatio-textual search
engine]
- J. Sankaranarayanan
Scalable query processing on spatial networks.
PhD thesis, University of Maryland, College Park, MD, April
2008.
- H. Samet,
J.
Sankaranarayanan,
H. Alborzi
Scalable network distance browsing in spatial databases.
In Proceedings of the ACM SIGMOD Conference, pages 43-54,
Vancouver, Canada, June
2008.[link]
Also see University of Maryland Computer Science Technical Report
TR-4865, April 2007
Categories: [spatial
network, nearest
neighbor finding]
- M. D. Lieberman,
J.
Sankaranarayanan,
H. Samet,
J. Sperling
Augmenting spatio-textual search with an infectious disease ontology.
In Proceedings of the Workshop on Information Integration
Methods, Architectures, and Systems (IIMAS08) (ICDE Workshops 2008),
pages 266-269, Cancun, Mexico, April
2008.[link]
Categories: [spatio-textual search
engine]
- M. D. Lieberman,
J.
Sankaranarayanan,
H. Samet
A fast similarity join algorithm using graphics processing units.
In Proceedings of the 24th IEEE International Conference on
Data Engineering, pages 1111-1120, Cancun, Mexico, April
2008.[link]
Categories: [parallel
processing,
similarity
searching]
- J.
Sankaranarayanan,
H. Samet,
A. Varshney
A fast all nearest neighbor algorithm for applications involving
large point-clouds.
Computers & Graphics, 31(2):157-174, April
2007.[link]
Categories: [nearest neighbor
finding,
computer graphics]
- H. Samet,
J.
Sankaranarayanan,
H. Alborzi
Scalable network distance browsing in spatial databases.
Computer Science Technical Report TR-4865, University of Maryland,
College Park, MD, April 2007.
Also in Proceedings of the SIGMOD'08 Conference, pages 43-54,
Vancouver, Canada, June 2008
Categories: [spatial
network, nearest
neighbor finding]
- H. Samet,
A. Phillippy,
J.
Sankaranarayanan
Knowledge discovery using the SAND spatial browser.
In Proceedings of the 7th National Conference on Digital
Government Research, pages 284-285, Philadelphia, PA, May
2007.[link]
Categories: [digital
government]
- H. Samet,
M. D. Lieberman,
J.
Sankaranarayanan,
J. Sperling
STEWARD: Demo of spatio-textual extraction on the web aiding the
retrieval of documents.
In Proceedings of the 7th National Conference on Digital
Government Research, pages 300-301, Philadelphia, PA, May
2007.[link]
Categories: [digital
government,
spatio-textual search
engine]
- M. D. Lieberman,
H. Samet,
J.
Sankaranarayanan,
J. Sperling
STEWARD: architecture of a spatio-textual search engine.
In H. Samet, M. Schneider, and C. Shahabi, editors, Proceedings
of the 15th ACM International Symposium on Advances in Geographic
Information Systems, pages 186-193, Seattle, WA, November
2007.[link]
Categories: [spatio-textual search
engine]
- J.
Sankaranarayanan,
H. Samet,
A. Varshney
Fast 1#1-neighborhood algorithm for large point-clouds.
In M. Botsch, B. Chen, M. Pauly, and M. Zwicker, editors, Proceedings of the 3rd IEEE/Eurographics Symposium on Point-Based
Graphics, pages 75-84, Boston, July
2006.[link]
Categories: [nearest neighbor
finding,
computer graphics]
- J.
Sankaranarayanan,
H. Alborzi,
H. Samet
Distance join queries on spatial networks.
In Proceedings of the 14th ACM International Symposium on
Advances in Geographic Information Systems, pages 211-218, Arlington, VA,
November
2006.[link]
Categories: [spatial
network]
- J.
Sankaranarayanan,
H. Alborzi,
H. Samet
Enabling query processing on spatial networks.
In Proceedings of the 22nd IEEE International Conference on
Data Engineering, page 163, Atlanta, GA, April
2006.[link]
Categories: [spatial
network]
