Medha Atre

Post-doctoral researcher (Oct. 2011 - present)
Computer and Information Science,
University of Pennsylvania,
Philadelphia, PA

Research | Education | Work | Miscellaneous

I am a post-doctoral researcher at Penn Database Group and Prof. Zack Ives is my advisor.

I did my Ph.D. from Dept. of Computer Science at Rensselaer Polytechnic Institute (Jan 2007 - Aug 2011). Prof. James A. Hendler was my thesis advisor and I was affiliated to Tetherless World Constellation. I also collaborated with Prof. Mohammed J. Zaki from time to time.

Research:

The general focus of my research until now has been in -- efficient querying over graph databases (centralized and distributed), practical and theoretical aspects of join (conjunctive) query optimization, multi-query optimization etc.
I have also been getting more interested in the following topics -- Distributed Green clusters, Music mining, Information and coding theory.

Publications (Google Scholar profile):

Medha Atre, Vineet Chaoji, Mohammed J. Zaki: BitPath -- Label Order Constrained Reachability Queries over Large Graphs, CoRR, March 13, 2012, arXiv:1203.2886 (PDF).
Medha Atre, Vineet Chaoji, Mohammed J. Zaki, James A. Hendler: BitMat -- Scalable Indexing and Querying of Large RDF Graphs, Technical Report, April 4, 2011 (PDF).
Gregory Williams, Jesse Weaver, Medha Atre, James A. Hendler: Scalable Reduction of Large Datasets to Interesting Subsets, Journal of Web Semantics (Special Issue: Science, Services and Agents on the World Wide Web), 2010 (winner of the 2009 Billion Triple Challenge, ISWC, October 2009)) (Paper)
Medha Atre, Vineet Chaoji, Mohammed J. Zaki, James A. Hendler: Matrix "Bit"loaded: A Scalable Lightweight Join Query Processor for RDF Data, WWW 2010 (PDF) (Presentation) (Source code).
Seema Sundara, Medha Atre, Vladimir Kolovski, Souripriya Das, Zhe Wu, Eugene Chong, Jagannathan Srinivasan: Visualizing Large-Scale RDF Data Using Subsets, Summaries, and Sampling in Oracle, ICDE (Industrial Track), March 2010 (Patent filed)
Medha Atre, Vineet Chaoji, Jesse Weaver, Gregory Williams: BitMat: An In-core RDF Graph Store for Join Query Processing, Technical Report, August 1, 2009, PDF
Medha Atre, Jagannathan Srinivasan (Oracle), James A. Hendler: BitMat: A Main-memory Bit Matrix of RDF Triples for Conjunctive Triple Pattern Queries, ISWC Poster and Demo track, October 2008 PDF (first runner up among 85 poster/demos)

Education:

Ph.D. (Computer Science), Rensselaer Polytechnic Institute (RPI) Troy, NY (Jan 2007 - Aug 2011)
M.Tech. (Computer Science and Engineering), Indian Institute of Technology, Bombay (IIT Bombay) INDIA (July 2002 - July 2004)
B.E. (Production Engineering), College of Engineering Pune (COEP) INDIA (July 1996 - July 2000)

Work:

Professional Experience:

IBM T. J. Watson Research (Sept 2010 - Nov 2010)
Oracle (Semantic Technologies Research Group) (May 2008 - August 2008)
GS Lab Pvt. Ltd. (July 2004 - Dec 2006)
Persistent Systems Ltd. (Sept 2000 - June 2002)

Some contributions/work:

Source Code for BitMat (Ph.D. thesis work)
Reverse engineering MSN Messenger's old file transfer protocol (Look up right at the end of the page)
Neon WebDAV client library updates (Search for my name)
Finding aggregates over streaming data in single pass

Miscellaneous:

I am a big fan of music in its various forms, some of my favorite songs having great music and equally good lyrics are:

Some entertainment:

Something that I observed: Beatles - I wanna hold your hand and then watch Dekho Abb Toh (a Hindi song from Bollywood)
A favorite Ph.D. comic: Grad Student Etiquette (Ph.D. Comic)

Favorite quotes:

"A question that sometimes drives me hazy; am I or are the others crazy?" - Albert Einstein
"Unrestrained capitalism produces great disparity of wealth, cycles of boom and depression, and festering levels of unemployment. The system encourages selfishness instead of cooperation, and acquiring wealth rather than serving others. People are educated for careers rather than for a love of work and creativity. And political parties become corrupted by political contributions from owners of great capital" - (extracted by Walter Isaacson from Albert Einstein's "Why Socialism?" article in Monthly Review 1949)
"Many of the great achievements of the world were accomplished by tired and discouraged people who just kept on working." (author unknown)