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| Information Systems | 3 |
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| Lakshmanan, Laks V. S. | 1 |
| Mihoubi, Houria | 1 |
| Ram, Sudha | 1 |
| Ramesh, Venkatar | 1 |
| Sadri, Fereidoon | 1 |
| Simonet, Ana | 1 |
| Simonet, Michel | 1 |
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Peer reviewedMihoubi, Houria; Simonet, Ana; Simonet, Michel – Information Systems, 1998
Examines how a domain ontology can be reused by different knowledge representation systems. Describes a meta-language which allows a declarative description of any model based on frames, objects, relations, or description logics. Discusses the meta-relation concept which, associated to a definition, represents the signification of the construct…
Descriptors: Algorithms, Information Systems, Knowledge Representation, Models
Peer reviewedLakshmanan, Laks V. S.; Sadri, Fereidoon – Information Systems, 1997
Considers a "hybrid" approach to the modeling of uncertainty in deductive databases. The model, deductive IST (DIST) is based on an extension of the "Information Source Tracking" (IST) model for relational databases. Proves that the complexity of testing containment of conjunctive DIST queries remains the same as in the…
Descriptors: Databases, Deduction, Information Processing, Information Seeking
Peer reviewedRamesh, Venkatar; Ram, Sudha – Information Systems, 1997
Presents a seven-step methodology for utilizing integrity constraint knowledge from heterogeneous databases. Describes generating a set of integrity constraints applicable at the integrated level from constraints specified on local databases. Introduces the concept of constraint-based relationships between objects in heterogeneous databases;…
Descriptors: Computer System Design, Databases, Information Processing, Information Technology
