1791 search results - page 122 / 359 » Semantics and Complexity of SPARQL |
170
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ICDT
2010
ACM
15 years 6 months ago
2010
ACM
When a query is evaluated under bag semantics, each answer is returned as many times as it has derivations. Bag semantics has long been recognized as important, especially when ag...
117
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AAAI
1990
15 years 5 months ago
1990
Cyclic definitions are often prohibited in terminological knowledge representation languages because, from a theoretical point of view, their semantics is not clear and, from a pr...
145
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COGSCI
2011
14 years 8 months ago
2011
What mechanisms underlie children’s language production? Structural priming—the repetition of sentence structure across utterances—is an important measure of the developing ...
209
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VLDB
2007
ACM
16 years 4 months ago
2007
ACM
Evaluation of twig queries over probabilistic XML is investigated. Projection is allowed and, in particular, a query may be Boolean. It is shown that for a well-known model of pro...
145
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SIGSOFT
2002
ACM
16 years 5 months ago
2002
ACM
We propose a unifying framework for model-based specification notations. Our framework captures the execution semantics that are common among model-based notations, and leaves the...