Prof. Johann-Christoph Freytag

Research

• Query optimization and query processing in object-relational DBMSs (ORDBMSs)
• Privaca issues in databases and information systems
• Data quality in databases
• XML & Semi-structured data
• Data Warehousing
• Applications using DBMS technology such as Bioinformatics

Commitment

As the Professor for Databases and Information Systems at the Humboldt-Universität zu Berlin, I am committed to provide my assistants and my students with the best possible teaching and research environment (see also my teaching guidelines). This commitment includes providing intellectual support, finding necessary resources, and opening up opportunities for further growth. When cooperating with other (academic or industrial) partners I am committed to be a reliable and responsive partner expecting the necessary respect as I respect others for the values and goals they stand for.

Furthermore, I am committed to challenge continuously my assistants and students in their work with the ultimate goal to perform outstanding research leading to outstanding results. I strongly believe that only active participation in the research community by publishing research results and ideas provides the stimulating working environment necessary for excellent research.

Professional Activities

• Program Committee Chair for VLDB 2003 Conference in Berlin
• Co-Organizer of the VLDB 2003 Conference in Berlin together with Heinz Schweppe and Peter Lockemann
• Member of the VLDB Endowment since 2002
• Program Committee Chair for the BTW 2009 conference in Münster, Germany
• Program Committee Member:

VLDB: 1995, 1998, 2001, 2002, 2004, 2005, 2006, 2007, 2008

SIGMOD: 1994, 2001 (industrial track), 2005, 2007, 2008

IEEE ICDE: 1995, 1997 (vice-chair), 2001, 2002, 2003, 2005, 2007

Comad: 1994, 2000, 2002

IEEE PDIS (Parallel and Distributed Databases): 1994

SSDBM: 2000, 2001, 2002

EDBT: 1990, 2006, 2008

BTW: 1997, 2005, 2007

Various national and international workshops

• I am currently head ("Sprecher") of the GI-Fachbereich Datenbanken und Informationssysteme (Gesellschaft für Informatik - German interest group in computer science) in Germany
• Member of the editorial board of the journal "Datenbankspektrum" published by d-punkt Verlag
• Member of the Editorial Board for the Book Series on "Data-centric Systems and Applications" published by Springer
• Visiting Scientist at IBM Silicon Valley Laboratory, San Jose, CA, Summer 2001
• Visiting Scientist at IBM Almaden Research Center, San Jose, CA, Winter 1997/1998
• Visiting Scientist at Microsoft Research, Redmond, Washington, February/March 2002
• Visiting Scientist at Microsoft Research, Redmond, Washington, February-May 2005
• Visiting Scientist at Microsoft Research, Redmond, Washington, February-April 2007
• Co-Organizer of the GI-Workshop " E-Commerce: System Support Dealing with Data and Processes in Distributed Application Environments" at the annual GI-conference 2001 in Vienna
• Organizer of the Workshop on Databases and Data Integration in Genome Research, February 2002 (supported by IBM)
• Organizer of the following Dagstuhl Workshops:

Query Processing in Object-Oriented, Complex Object, and Nested Relation Databases (with D. Maier and G. Vossen), June 1991

Information and Process Integration: A Life Science Perspective (with R. Apweiler, T. Etzold, C. Goble, P. Schwarz),  January 2003

Perspectives Workshop: Data Mining: The Next Generation (together with R. Agrawal and R. Ramakrishnan), July 2004

Managing and Mining Genome Information: Frontiers in Bioinformatics (with J. Blazewicz and M. Vingron), November 2005

• Reviewer for various journals including ACM TODS, ACM JACM, and the VLDB Journal

Research Participation

• Board member and co-initiator of  the Graduate School "Distributed Information Systems" funded by the DFG
• Board member and co-initiator of  the Graduate School "METRIK" funded by the DFG
• Member of the Coordination Board for the "Berlin Center for Genome Based Bioinformatics" (BCB) (until 2005)

Awards

• SUN-Grant recipient for research in Genomic databases, 1998
• IBM-Faculty Award 1999 for excellent cooperation with IBM in the area of databases and workflow systems
• IBM-Faculty Award 2001 for excellent cooperation with IBM in the area of databases and bioinformatics (see IBM, WISTA, Humboldt-Universität zu Berlin)
• IBM-SUR-Grant Award 2001: Hardware grant for scalable Life Science solutions
• IBM-Faculty Award 2002 for excellent cooperation with IBM in the area of databases and bioinformatics

Miscellaneous

• Helpful links how to publish and how to perform research successfully
• My CV
• Book by D. Maier: Theory of Relational Databases
• Book by Philip A. Bernstein, Vassos Hadzilacos, and Nathan Goodman: Concurrency Control and Recovery In Database Systems

Publications

List of publications (For a complete list of publications - especially for 1993 and earlier - please access the DBLP Bibliography Server)