Abstract

http://ssrn.com/abstract=577261
 
 

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Reasoning about Temporal Context using Ontology and Abductive Constraint Logic Programming


Hongwei (Harry) Zhu


University of Massachusetts Lowell; Massachusetts Institute of Technology (MIT); Old Dominion University

Stuart Madnick


Massachusetts Institute of Technology (MIT) - Sloan School of Management

Michael Siegel


Massachusetts Institute of Technology (MIT) - Sloan School of Management

August 2004

MIT Sloan Working Paper No. 4498-04; CISL Working Paper No. 2004-15

Abstract:     
The underlying assumptions for interpreting the meaning of data often change over time, which further complicates the problem of semantic heterogeneities among autonomous data sources. As an extension to the Context Interchange (COIN) framework, this paper introduces the notion of temporal context as a formalization of the problem. We represent temporal context as a multi-valued method in F-Logic; however, only one value is valid at any point in time, the determination of which is constrained by temporal relations. This representation is then mapped to an abductive constraint logic programming framework with temporal relations being treated as constraints. A mediation engine that implements the framework automatically detects and reconciles semantic differences at different times. We articulate that this extended COIN framework is suitable for reasoning on the Semantic Web.

Number of Pages in PDF File: 14

Keywords: Context Interchange (COIN) framework, temporal context, Semantic Web

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Date posted: August 17, 2004  

Suggested Citation

Zhu, Hongwei (Harry) and Madnick, Stuart and Siegel, Michael, Reasoning about Temporal Context using Ontology and Abductive Constraint Logic Programming (August 2004). MIT Sloan Working Paper No. 4498-04; CISL Working Paper No. 2004-15. Available at SSRN: http://ssrn.com/abstract=577261 or http://dx.doi.org/10.2139/ssrn.577261

Contact Information

Hongwei Zhu (Contact Author)
University of Massachusetts Lowell ( email )
United States
Massachusetts Institute of Technology (MIT) ( email )
Cambridge, MA 02139
United States
HOME PAGE: http://web.mit.edu/~mrzhu
Old Dominion University ( email )
Norfolk, VA 23529
United States
757-683-5175 (Phone)
HOME PAGE: http://www.odu.edu/~hzhu
Stuart E. Madnick
Massachusetts Institute of Technology (MIT) - Sloan School of Management ( email )
E53-321
Cambridge, MA 02142
United States
617-253-6671 (Phone)
617-253-3321 (Fax)
Michael Siegel
Massachusetts Institute of Technology (MIT) - Sloan School of Management ( email )
E53-323
Cambridge, MA 02142
United States
617-253-2937 (Phone)
617-258-7579 (Fax)
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