Digital Library Scientist
MSE Wang Institute
My research group investigates infrastructure for distributed
digital libraries. Our approach is component-based: we view
the digital library infrastructure as a toolbox of service
components (repository services, index services, etc), which
can be combined (or federated) into digital libraries. This
component-based infrastructure is inherently extensible and
flexible: components can be evolved independently, new
component services can be introduced into the infrastructure, and federations of services can be created and configured according to individual requirements.
This research builds on our design and implementation of Dienst, a protocol and reference
implementation for distributed document libraries. Dienst is the technical foundation of the NCSTRL, the Networked Computer Science Technical Research Library, which is administered by our group. NCSTRL is a distributed digital library of computer science research reports from over 100
Currently our infrastructure research is focusing on three areas:
- We are investigating an architecture, FEDORA, that
specifies how content is stored in digital
libraries. FEDORA uses a generic abstraction, a digital object, for encapsulating diverse content, making it available in various forms, and providing access control to protect intellectual property.
- We are studying how to describe and administer collections in digital libraries configured as distributed systems. We view a collection service as an entity that stores
and provides metadata about a set of digital objects that conform to a collection criterion.
- We are investigating techniques to improve
distributed searching. In particular, we are interested in how to route queries to replicated and disjoint index servers using metadata provided by those servers.
- We are investigating and developing metadata standards for research discovery, administration, and preservation of digital content and services.
Dublin Core Technical Advisory
- Chair: NCSTRL Working Group
Member: Information Technology
Strategy for the Library of Congress
Project, Computer Science and
Telecommunications Board, National
Research Council; D-lib Metrics
- A Canadian metadata roadshow.
Canadian Library Association,
Fredericton, N.B., May 1999.
—. Canadian Library Association, Toronto, Ontario, May
- —. Canadian Library Association,
Edmonton, Alberta, May 1999.
- Metadata for digital libraries. CIMI
Workshop, Ottawa, Canada, May 1999.
- Digital libraries for scholarly research:
NCSTRL and Dienst. Univ. of
Southampton Guest Lecture, Southampton U.K, Feb. 1999.
- Rapid dissemination of research
results: The NCSTRL experience .Metadata: Interoperability and
Heterogeneity, IuK Commission of the Learned Societies in Germany,
Bonn, Germany, Dec. 1998.
- Metadata challenges for libraries.
Metadiversity 1998, Natural Bridge, Virginia, Nov 1998.
- Metadata for networked objects.
Second European Conference on
Research and Advanced Technology
for Digital Libraries, Heraklion, Crete,
- NCSTRL: Design and
deployment of a
globally distributed digital library. To
appear in Journal of the
American Society for
Information Science (JASIS)
(1999) (with J. R. Davis).
- Flexible and extensible digital
object and repository
Second European Conference
on Research and Advanced
Technology for Digital
Heraklion, Crete, 1998 (with S.
Interoperability for Digital
Objects and Repositories:
D-Lib Magazine 5 (May 1999)
(with S. Payette, C.
and E. Overly).
Defining collections in
distributed digital libraries.
D-Lib Magazine 4 (Nov 1998)
(with D. Fielding).