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100
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ACL
1997
14 years 11 months ago
1997
Although adequate models of human language for syntactic analysis and semantic interpretation are of at least contextfree complexity, for applications such as speech processing in...
ECSQARU
2007
Springer
15 years 4 months ago
2007
Springer
Abstract. The problem of merging multiple sources information is central in several domains of computer science. In knowledge representation for artificial intelligence, several a...
119
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ICLP
1994
Springer
15 years 2 months ago
1994
Springer
In many cases, a logic program can be divided into two parts, so that one of them, the \bottom" part, does not refer to the predicates de ned in the \top" part. The \bot...
IQIS
2004
ACM
15 years 3 months ago
2004
ACM
A virtual database system is software that provides unified access to multiple information sources. If the sources are overlapping in their contents and independently maintained,...
176
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VLDB
2001
ACM
15 years 10 months ago
2001
ACM
The problem of answering queries using views is to find efficient methods of answering a query using a set of previously materialized views over the database, rather than accessing...