2599 search results - page 399 / 520 » An Operational Semantics for Knowledge Bases |
146
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ICFP
2005
ACM
16 years 6 months ago
2005
ACM
The concept of a "unique" object arises in many emerging programming languages such as Clean, CQual, Cyclone, TAL, and Vault. In each of these systems, unique objects ma...
172
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ICDE
1994
IEEE
15 years 10 months ago
1994
IEEE
The relational data model is based on sets of tuples, i.e. it does not allow duplicate tuples in a relation. Many database languages and systems do require multi-set place, the hi...
205
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WWW
2003
ACM
16 years 7 months ago
2003
ACM
RDF-based P2P networks have a number of advantages compared with simpler P2P networks such as Napster, Gnutella or with approaches based on distributed indices such as CAN and CHO...
151
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AGP
1998
IEEE
15 years 10 months ago
1998
IEEE
In this paper we investigate updates of knowledge bases represented by logic programs. In order to represent negative information, we use generalized logic programs which allow de...
184
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MUC
1991
15 years 10 months ago
1991
ind this work was to extract a relatively abstract level of information from each sentence , using only a limited vocabulary that was hand-crafted to handle a restricted set of tar...