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My interests include electronic publishing, information retrieval and display, and metadata creation and editing systems. I currently lead a group that is investigating algorithms for the FRBR grouping of bibliographic metadata, distributed authority control, text retrieval on Beowulf clusters, Z39.50 and its Web equivalents SRW/U, and applications of the OAI protocol for metadata harvesting, such as the NDLTD catalog of electronic theses and ERRoLs. In addition, we are heavily involved in DSpace and maintain several open source systems, including the PURL software, and the Pears retrieval engine.
I have been at OCLC since 1977, when I helped found the research department, and Chief Scientist since 1994.
In 1998 I designed and lead the CORC project for its first year while it was a research project and then continued to lead the requirements team until CORC's release as an OCLC system in 2000.
Other projects of note include doing the research that lead to OCLC's Primary Journals Online service; guiding the group that designed and developed the Guidon interface for electronic journals; and leading the development of the original OCLC FirstSearch interface.
Weblog
Projects
DSpace Harvesting
Electronic Theses & Dissertations
FRBR Work-Set Algorithm
xISBN
Recombinant Catalog Metadata
Open Archives Initiative
Open Source Software
OpenURL Registry
PURL
VIAF
Publications
"FRBRizing OCLC's WorldCat." 2005. With Edward T. O'Neill. Cataloging & Classification Quarterly, 39,3/4: 239-251.
"NACO Normalization: A Detailed Examination of the Authority File Comparison Rules." 2006. With Jenny Toves and Edward T. O’Neill. Forthcoming in Library Resources & Technical Services (LRTS). Pre-print available online at: http://www.oclc.org/research/publications/archive/2006/naco-lrts.pdf (PDF:279K/20pp.)
"Parallel Text Searching on a Beowulf Cluster using SRW." 2005. With Ralph R. LeVan and Jenny Toves. D-Lib Magazine, 11,9 (September) http://www.dlib.org/dlib/september05/levan/09levan.html.
Presentations
A Future for the Library Catalog (.ppt: 1.5MB/22 slides). Association of College and Research Libraries, Delaware Valley Chapter (ACRL/DVC) 2006 Fall Program, "The Future of the Catalog: Deconstruction or Reinvention?", 3 November 2006, Bryn Mawr, Pennsylvania (USA)
A Public Catalog of Theses and Dissertations (.ppt: 62.5K/15 slides). ETD2006 U.S. Regional Conference, University of Missouri-St. Louis, 27 October 2006, St. Louis, Missouri (USA)
Matching Names in Parallel (.ppt: 404K/26 slides). Access 2006 Conference, 14 October 2006, Ottawa, Ontario (Canada)
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