|
|
Lois M.L. Delcambre, Ph.D. Professor,
Computer Science Department, Phone: +1 503 725-2405 E-mail: lmd with the regular department address of cs.pdx.edu Ph.D.,
Computer Science, University
of Louisiana, Lafayette, 1982 Note:
prior to |
2007/2008 Classes
|
Fall Quarter 2007: Winter Quarter 2008: |
Current and Recent Research
Projects
|
NSF Information and Intelligent Systems Division, "Adapting Information using Superimposed Models and Structures", with David Maier, February 2006 - February 2009. NSF Digital Government Program, "Accelerated Indexing in a Domain-specific Digital Library, June 1, 2005 - May 31, 2006, with Marianne Lykke Nielsen (Royal School of Library and Informatoin Science, Denmark), Mathew Weaver, and Timothy Tolle, a Small Grant for Exploratory Research. NSF NSDL Program, Targeted Research
Project, “Superimposed Tools for Active Arrangement and Elaboration of
Educational Resources, Oct. 2004 - Sept. 2006, PI with David Maier, Edward
Fox (Va. Tech.), and Lillian Cassel (Villanova). NSF Digital Government Program, “Harvesting
Information to Sustain our Forests”, August 2000 - March 2005, PI, with David
Maier, Patricia Toccalino, Fred Phillips, Nicole Steckler, Marianne Koch, and
Marianne Nielsen. NSF Digital Libraries Initiative 2 (DLI2),
“Tracking Footprints through a Medical Information Space”, Jan. 1999 - Dec.
2003. Co-PI with Paul Gorman and David Maier. |
Research Interests
|
Database Data Models Lois Delcambre has worked on object-oriented and other database data models with an emphasis on the structural aspects of the model. The database structure reflected in the class hierarchy is semantically much richer than traditional database models. Her work in this area (with S. Urban) includes constraint analysis to generate algorithmically and process the set of constraints implied by the application schema, plus additional application constraints expressed in a constraint language. This analysis assists the application designer with constraint formulation, schema design and transaction design. Further work in this area (with B. Lim) has led to the characterization of constraints appropriate for constraint analysis, termed object-centered constraints, and has considered the use of the basic algorithm for constraint enforcement. Work on the class construction primitives in a semantic data model (with K. Davis) has led to the development of the Class Model and the associated Class Algebra, a closed, class-forming algebra that includes the object-oriented equivalent of the relational algebra operations. One of the contributions of this work is a set of sound and complete rules of inference for inferring structural relationships in an application schema. The Classifier identifies all structurally inconsistent classes and all isa relationships implied by the current schema. More recent work (with S. Bowers) has resulted in the definition of the Uni-level description (ULD), a uniform, generic representation for a wide range of structural models that can accommodate multiple levels of schema and missing schemas. The ULD permits the use of powerful transformation rules and navigation capabilities across a range of data models. Lois Delcambre has also been exploring models for terms or keywords that are used in a digital library (with M. Weaver). The Metadata++ model includes broader/narrower term, synonym, and general association relationships but differs from classical thesarus in that there is no notion of preferred term and terms are allowed to participate in multiple locations in the broader/narrower term hierarchy. |
Selected Recent Publications
|
“Using the uni-level description (ULD) to support data-model interoperability”, S. Bowers and L. Delcambre, Data and Knowledge Engineering, Elsevier Press, (in press - 2006).
Harvesting Information to Sustain Forests, L. Delcambre, T. Tolle, et al., Comm. of the ACM, 46(1), January 2003, pp. 38-39. A Generic Representation for Exploiting Model-Based Information,” S. Bowers, L. Delcambre, ETAI Journal, March, 2002, Linköping Electronic Articles in Computer and Information Science, ISSN 1401-9841, Vol. 6(2001): nr 006, . Bundles: meeting
clinical information needs, J.S. Ash, P.N. Gorman, M. Lavelle, J. Lyman, L.
Delcambre, D. Maier, Bulletin of the Medical Library Association
2001;89(3):294-6. Following Experts
at Work in their Own Information Spaces: Using Observational Methods to
Develop Tools for the Digital Library,” P. Gorman, M. Lavelle, L. Delcambre,
D. Maier, Journal of the American Society of Information Science and
Technology 2001 (in press). A Behaviorally
Driven Approach to Object-Oriented Analysis and Design with Object-Oriented
Data Modeling, L. Delcambre, and E. Ecklund, chapter in Object-Oriented Data
Modeling, M. Papazoglou, S. Spaccapietra, and Z. Tari (editors), MIT Press,
2000, pp. 21-40 Bundles in the
wild: Managing information to solve problems and maintain situation
awareness, P. Gorman, J. Ash, M. Lavelle, J. Lyman, L. Delcambre, D. Maier, Library
Trends 2000;49(2):266-289. Models for Superimposed Information. With D. Maier, Workshop on Conceptual Models for the WWW in conjunction with the International Conference on Conceptual Modeling, (ER ’99), November, 1999, Paris, France, Lecture Notes in Computer Science 1727, Springer Verlag, 1999, pp 264-280. Breaking the
Database out of the Box: Models for Superimposed Information, L. Delcambre,
Chapter in Conceptual Modeling: Current Issues and Future Directions, P.
Chen, J. Akoka, H. Kangassalo, and B. Thalheim (editors), Lecture Notes in
Computer Science, No. 1565, Springer-Verlag, 1999. |
Selected
Recent Publications
|
Context-Sensitive Clinical Data Integration, by
James F. Terwilliger, Lois M. L. Delcambre, Judith Logan, in Proc. Workshop
on Information Integration in Healthcare Applications (IIHA), in Conjunction
with Conference on Extending Database Technology (EDBT) 2006, Munich, Germany,
March 2006.
Querying Bi-level
Information, Sudarshan Murthy,
David Maier, Lois Delcambre, Proc. Seventh International Workshop on the Web and
Databases (WebDB) 2004, June 2004, Maison de la Chimie,
|
Recent
Awards and Honors:
|
Editorial Board Member, Journal of Data Semantics (Lecture Notes in Computer Science subline), Springer-Verlag, 2002-present. 2002 Computer
Science and Engineering Department, Outstanding Teacher, OGI 2001 Recipient of the Oregon Graduate Institute Faculty Award for Outreach. 1999 Computer Science and Engineering Department, Outstanding Teacher, Oregon Graduate Institute. |
|
Departmental and
Institutional Service: |
Chair, Computer Science Department Promotion and Tenure Committee, 2005/2006. Co-Project Leader, 2000 Developed CSE514D, a distance learning version of CSE514 Introduction to Database Systems, in conjunction with Cenquest, Inc. Member of the Institute Strategic Planning Committee 1998-1999. Awarded the Oregon Graduate Institute Outstanding Teaching Award (one of ten awardees), with a cash award of $1500, 1997. Member of the accreditation team for OGI representing the Computer Science and Engineering Department, Nov. 1997 - Nov. 1998. OGI was accredited with a number of acclamations in December 1998. |
|
Recent Professional
Service: |
Program
Committe Member, 2006 International Conference on Digital Government, May
2006. Program Committee
Member, 2005 ACM SIGMOD (Special Interest Group in Management of Data)
Conference, June 2005. Program Committee
Member, The 17th Conference on Advanced Information Systems Engineering
(CAiSE'05), June 2005. Co-Program Chair
(with Oscar Pastor and John Mylopolous), International Conference on
Conceptual Modeling, ER 2005. Conference Co-Chair
(with Genevieve Giuliano), dg.o 2005, The National Digital
Government Research Conference, sponsored by the National Science Foundation,
published in the ACM Digital Library, May 2005. Program Committee Member, International Conference on Conceptual Modeling (ER 2004), 2004. Program Chair, dg.o 2004, The Digital Government Conference, The National Conference on Digital Government Research, Sponsored by the National Science Foundation, May 2004. Panel Organizer and
Moderator, “Conceptual Modeling for GIS,” International Conference on
Conceptual Modeling (ER 2003), Program Committee Member, International Conference on Conceptual Modeling (ER 2003), 2003. Proceedings Chair, Joint Conference on Digital Libraries, 2003. Program Committee Member, Joint Conference on Digital Libraries, 2003. Program Committee Member, ACM SIGMOD Conference, 2003. NSF Site Review
Team, Organizer (with
Paul Gorman and David Maier), DLI2 PI Meeting, July 2002, Posters Chair and Program Committee Participant, Joint Conference on Digital Libraries, 2002. Program Committee Member, International Conference on Data Engineering, 2002. NSF Review Panel, Winter 2002. NSF Site Review Team,
NSF Site Review
Team, Review Team Member,
Laboratory Review, Addison-Wesley, Reviewer of Books and Book Proposals in the field of object-oriented analysis and design, including use case modeling. |
|
|
