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Martin Theobald

Email: martin.theobald@mpi-inf.mpg.de
Phone: +49 681 9325 507
Fax: +49 681 9325 599

ACM SIGMOD Dissertation Award Honorable Mention '06, SIGMOD Conference, Beijing, June 2007
GI DBIS Dissertation Award '06/'07, BTW Conference, Aachen, March 2007
Otto Hahn Medal of the Max Planck Society '06, Annual Gathering of the Max Planck Society, Kiel, June 2007

Overview of the INEX 2008 Efficiency Track, INEX Workshop, Schloss Dagstuhl, December 2008
SpotSigs - Robust and Efficient Near Duplicate Detection in Large Web Collections [slides]. SIGIR, Singapore, July 2008
TopX 2.0, Dagstuhl Seminar on Ranked XML Retrieval, Schloss Dagstuhl, March 2008
Trio - A System for Integrated Management of Data, Lineage, and Uncertainty, USI Lugano, March 2008
TopX (basically a compilation of previous talks with lots of animations, given at various occasions)
TopX - Efficient and Versatile Top-k Query Processing for Text, Structured, and Semistructured Data [slides]. BTW, Aachen, March 2007
An Efficient and Versatile Query Engine for TopX Search [slides]. VLDB, Trondheim, September 2005
Efficient and Self-Tuning Incremental Query Expansion for Top-k Query Processing [slides]. SIGIR, Salvador de Bahia, August 2005
Efficient Top-k Query Processing for Text, Semistructured, and Structured Data [poster]. MPI-IMPRS, May 2005
Probabilistic Top-k Query Processing [poster] [slides]. MPI-IMPRS, September 2004
Top-k Query Processing with Probabilistic Guarantees [slides]. VLDB, Toronto, September 2004
BINGO! and Daffodil: Personalized Exploration of Digital Libraries and Web Sources [slides]. RIAO, Avignon, April 2004
Exploiting Structure, Annotation, and Ontological Knowledge for Automatic Classification of XML Data [slides]. WebDB 2003, San Diego, June 2003

Frequent Journal Reviews
ACM-TODS, DAPD, IEEE-IS, IEEE-TC, IEEE-TKDE, IJCNS, IJDL, IJHIS, Information Systems, VLDB-J, WWW-J
Conferences/Workshops PC
ADBIS '07, ADBIS '08, DataX '08, DataX '09, DBRank'08, DBRank'10, DSMM '09, ECIR '07, ECIR '08, ECIR '09, ECIR '10, EDBT '08, EDBT '09, ICDE '09, ICDE '10, MUD '07, MUD '08, PersDB '08, PersDB '09, PersDL '07, VLDB Ph.D. Workshop '09, SIGIR '09, SIGIR '10, SIGMOD '10, WIDM '07, WWW '09, XSym '06
I have been in the organizer's team of the international INEX (Initiative on the Evaluation of XML Retrieval) workshop for a few years, with a focus on the document exploration phase and topic development using TopX.
INEX '06, INEX '07, INEX '08/'09

INEX was an activity of the DELOS Network of Excellence for Digital Libraries until '07.
I'm organizing the new Efficiency Track at INEX '08/'09, together with Ralf Schenkel.

TopX
Efficient and Versatile Top-k Query Processing for Text, Semistructured, and Structured Data
Check out our online demo!
Stanford Trio Project
A System for Integrated Management of Data, Uncertainty, and Lineage
Check out our online demo!
The BINGO! Focused Crawler

Bookmark-Induced Gathering of Information with Adaptive Classification into Personalized Ontologies

SpotSigs
This is the Java source code accompanying our 2008 SIGIR paper Efficient and Robust Near-Duplicate Detection in Large Web Collections.
SpotSigs needs the Java Colt package for some basic hashing operations.
The package also contains efficient Java implementations of LSH (Locality Sensitive Hashing, incl. Min-Hashing) and the I-Match algorithm for near-duplicate document detection.

Our Gold Set of 2,160 manually selected near-duplicate news articles used as reference set in the paper is also available.
JNI_SVM-light-6.01
A true native interface for Thorsten Joachim's genuine SVM-light v6.01 in a compact Java API. Originally written as part of BINGO!, this is probably the fastest currently available Java Native Interface (JNI) for SVM-light. It comes with two precompiled shared libraries for Windows (svmlight.dll) and RedHat/Debian/Suse Linux (svmlight.so) and supports the full functionality of SVM-light such as classification, regression, and full Java-side parameterization. All sources can easily be recompiled for more eccentric operating systems.

See the JavaDoc and JNI_SVMLight_Test.java test class for more details.

October 2008 - present
Researcher at the Max-Planck-Institut für Informatik
October 2006 - October 2008
Post-Doc at the Stanford University Infolab
May 2006 - October 2006
Post-Doc at the Max-Planck-Institut für Informatik
March 2002 - May 2006
Ph.D. student in Computer Science at the Universität des Saarlandes, Saarbrücken, Germany, and the Max-Planck-Institut für Informatik
October 1997 - March 2002
Studies in Computer Science at the Universität des Saarlandes, Saarbrücken, Germany