# Valerie Cross, Ph. D.

## Research Highlights

- Fuzzy set theory and approximate reasoning
- Knowledge representation for AI applications
- Databases (deductive, object-relational)

## Associate Professor

201 E Benton Hall

513-529-0789

crossv@MiamiOH.edu

### Degrees

- Ph.D.—from Wright State University in Computer Science—1993
- M.S.—1981 from University of Colorado in Computer Science—1981
- B.S.—1975 from West Virginia University in Computer Science—1975
- B.S.—1975 from West Virginia University in Statistics—1975

Research

- She has a broad research agenda on the role of ontologies in the development of the Semantic Web and narrower research projects on: 1) assessing semantic agreement within and across ontologies, 2) consumer metrics for evaluation of ontologies, 3) adapting techniques for finding and visualizing semantic pathways through the WordNet ontology, 4) modifying and extending existing ontologies through learning techniques to enable ontology re-use, and 5) adapting scientific visualization techniques for exploring information contents and structure of ontologies.

- She has expertise in the management of uncertainty in knowledge bases with fuzzy set theory and approximate reasoning. She is investigating the role of uncertainty management in the Semantic Web.

- Multi-FCA is a system being developed that combines ontological terminologies and annotation databases through the use of formal concept analysis (FCA) to analyze the similarity or discover the relationships among the annotated objects. It is a user friendly and generic tool that focuses on FCA for annotated objects whose annotations come from an ontological terminology. An already existing system QUOTA (QUerying Ontological Terminologies and their Annotations) permits the user to assess the similarity of annotated objects and to summarize a set of annotated objects using the most descriptive ontology terms for the input set.

### Academic Experience

- Associate Professor, Miami University, 2002–present
- Associate Professor, University of South Carolina, 2001–2002
- Visiting Associate Professor, University of North Carolina, Charlotte, 1998–2001
- Associate Professor, Miami University, 1991–1996

### Principal Publications

Book Chapters

*Similarity and Compatibility in Fuzzy Set Theory: Assessment and Applications,*with Thomas Sudkamp, currently in publication for 2002 by Springer-Verlag.- R. De Caluwe,
**V. Cross**, and N. VanGyseghem, "Basic Notations and Rationale of the Integration of Uncertainty Management and Object-Oriented Databases" with Dr. Rita De Caluwe, in Fuzzy and Uncertain Object-Oriented Databases Concepts and Models Ed. R. De Caluwe, World Scientific Publishing Co. ISBN:981-02-2893-7, Fall 1997.

Journal Articles

**V. Cross**, "Fuzzy Extensions for Relationships in a Generalized Object Model," International Journal of Intelligent Systems, Vol. 16, No. 7 July 2001, pp. 843-861.**V. Cross**and A. Firat "Fuzzy Objects for Geographical Information Systems," Fuzzy Sets and Systems, Vol. 113, July 2000, pp. 19-36.- J. Kiper,
**V. Cross**, D. Delissio, A. Sobel, D. Troy, "Perspectives on Assessment Through Teaching Portfolios in Computer Science ", SIGCSE Bulletin. ACM Press, Vol. 28, No. 1, March 1996, pp. 200-203 **V. Cross**and T. Sudkamp, "Geometric Compatibility Modification," Fuzzy Sets and Systems, Vol. 84 No.3, December 1996, pp 283-300 V. Cross and T. Sudkamp, "Patterns of Fuzzy Rule-Based Inference," International Journal of Approximate Reasoning, Vol. 11, No. 3, October 1994, PP 235-255.**V. Cross**"Fuzzy Information Retrieval," Journal of Intelligent Information Systems, Vol. 3, pp. 29-56, February 1994.

Refereed Conference Proceedings Publications

**V. Cross**, "Similarity or Inference for Assessing Relevance in Information Retrieval, to appear in Proceedings of the Tenth IEEE International Conference on Fuzzy Systems, Melbourne, Australia December, 2001.**V. Cross**and C. R. Voss, "Fuzzy Queries and Cross-Language Ontologies in Multilingual Document Exploitation," Proceedings of the Ninth IEEE International Conference on Fuzzy Systems, May 7-10, 2000 San Antonio Texas, pp. 641-646.**V. Cross**and C. R. Voss, "Fuzzy Ontologies for Multilingual Document Exploitation," Proceedings of the 1999 Conference of NAFIPS, June, 1999, New York City, pp. 392-397.**V. Cross**, "Using the Fuzzy Object Model for Geographical Information Systems," Proceedings of the 1999 Conference of NAFIPS, June, 1999, New York City, pp. 814 -818.**V. Cross**and M. Setnes, "A Generalized Model for Fuzzy Ranking and Its Properties," Proceedings of the Seventh IEEE International Conference on Fuzzy Systems, Anchorage, Alaska, May 1998, pp. 773-778.**V. Cross**, R. De Caluwe, and N. Gyseghem, "A Perspective from the Fuzzy Object Data Management Group (FOGMG)," Proceedings of the Sixth IEEE International Conference on Fuzzy Systems, Barcelona, Spain, July, 1997 pp. 721-728.- T. Sudkamp and
**V. Cross**. "A Fuzzy-Valued Matching Index," Proceedings of the Fifth IEEE International Conference on Fuzzy Systems, New Orleans, LA, September 1996, pp. 1320-1324. - M. De Cabello and
**V. Cross**, "F-PRG: A Front-End to Mathematical Problem Solvers for Fuzzy Multiobjective Mathematical Problem with Fuzzy Goals and Fuzzy Parameters," Proceedings of the Fifth IEEE International Conference on Fuzzy Systems, New Orleans, LA, September 1996, pp. 313-317. **V. Cross**, "A Unifying Framework for the Fuzzy Object Model," Proceedings of the Fifth IEEE International Conference on Fuzzy Systems, New Orleans, LA, September 1996, pp. 85-92.**V. Cross**, "Fuzzy Extensions to the Object Model," Proceedings of the 1995 IEEE International Conference on Systems, Man, and Cybernetics, Vancouver BC, October 1995, pp. 3630 - 3635.**V. Cross**, "Compatibility Measures Using Fuzzy Truth and Co-implication", Proceedings of the 1994 First International Joint Conference of North American Fuzzy Information Processing Society Biannual Conference, the Industrial Fuzzy Control and Intelligent Systems Conference and the NASA Joint Technology Workshop on Neural Networks and Fuzzy Logic, San Antonio, TX, December, 1994, pp. 455-458.**V. Cross**and T. Sudkamp, "Geometric Plausible Inference," Proceedings of the Third IEEE International Conference on Fuzzy Systems at the 1994 World Congress on Computational Intelligence, Orlando, FL, June 1994, PP 452-455.**V. Cross**and T. Sudkamp, "Fuzzy Implication and Compatibility Modification," Proceedings of the Second IEEE International Conference on Fuzzy Systems, San Francisco , CA, March 1993, pp. 219-224.

Other Conference Papers

**V. Cross**and C. R. Voss, "Intelligent Importance Weighting in Ontology-Based Fuzzy Queries," Proceedings of the 2000 Conference of NAFIPS, July 13-15 2000, Atlanta, GA, pp. 232-236.**V. Cross**and M. Setnes, "A Study of Set-Theoretic Measures for use with the Generalized Compatibility-Based Ranking Method," Proceedings of the 1998 Conference of NAFIPS, Pensacola, FL August 1998, pp. 124-129.**V. Cross**, "Enhancing Computer Science Course with Fuzzy Set Theory," Proceedings of the 1998 Conference of NAFIPS, Pensacola, FL August 1998, pp. 130-134.- A. Firat and V. Cross, "Fuzzy Set Processing for a Commercial OODBMS," Proceedings of the 1998 Conference of NAFIPS, Pensacola, FL August 1998, pp. 146-150.
**V. Cross**and A. Firat, "FuzzyCOOL: Fuzzy Set Theory in CLIPS Object-Oriented Language , Proceedings of the 1997 Conference of NAFIPS, Syracuse, NY September 1997, pp. 73-78.**V.Cross**and M. Setnes, "Compatibility-Based Ranking of Fuzzy Numbers, Proceedings of the 1997 Conference of NAFIPS, Syracuse, NY September 1997, pp. 305-310 T.- Sudkamp and
**V. Cross**, "Toward Fuzzy-Valued Matching and Similarity Assessment", Proceedings of 1996 Biennial Conference of NAFIPS, Berkeley CA, June, 1996, PP 59-62. **V. Cross**and A. Rajagopal, "Applying Geometric Compatibility Modification in FuzzyCLIPS", Proceedings of 1996 Biennial Conference of NAFIPS, Berkeley, CA, June, 1996, PP 541-54.**V. Cross**and M. De Cabello, "Fuzzy Interactive Multi-Objective Optimization on Borrowing/Lending Problems", Proceedings of ISUMA-NAFIPS'95, College Park, MD September, 1995, PP 513-518.**V. Cross**and A. Rajagopal, "Geometric Compatibility Modification in FuzzyCLIPS", Proceedings of ISUMA-NAFIPS'95, College Park, MD September, 1995, PP 175-180.- Dissertation, Computer Science and Engineering, March 1993, Wright State University, Dayton, OH, 264 pages.

Invited Presentations

- "An Analysis of Fuzzy Set Aggregators and Compatibility Measures" given at a faculty colloquium of the Systems Analysis Department held on March 12, 1993.
- "Fuzzy Set Theory and Approximate Reasoning" given at the Mathematics Colloquium, Mathematics and Computer Science, Central State University held on February 1,1994. "Cooperative Learning", presented at the Systems Analysis Department Seminar , February 14, 1995.
- "Fuzzy Set Theory and Approximate Reasoning" presented at the Physics Colloquium, Physics Department, Miami University held November 15, 1995.
- "Geometric Fuzzy Reasoning" presented at the Computer Science Department Seminar, University of South Florida, November 21, 1995.
- "Towards a Unifying Framework for a Fuzzy Object Model," presented at the Lectures on Fuzziness and Database Systems, University of Ghent, Computer Science Laboratory, May 15, 1996.
- "Geometric Fuzzy Reasoning" presented at the Computer Science and Engineering Department Colloquium, University of Cincinnati, January 27, 1997.
- "Compatibility-Based Ranking of Fuzzy Numbers ", presented at the Computer Science and Engineering Department Colloquium, University of South Florida, November 25, 1997.
- "Fuzzy Object Model = Fuzzy Set Theory + Object Model," National Research Council of Canada, Ottawa, Ontario, May 15, 1998.
- "Fuzzy Object Model = Fuzzy Set Theory + Object Model," Army Research Laboratory, Adelphi, MD, August 3, 1998.
- "Overview of Fuzzy Set Research", University of North Carolina at Charlotte, April, 1999. "Uncertainty Management Techniques and Their Applications," Winthrop University, Rock Hill, SC, May 20, 1999.
- "Fuzzy Set Theory and its Application to Information Systems," University of South Carolina, April, 2000.