2409 search results - page 239 / 482 » On Extended Regular Expressions |
211
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JAIR
1998
15 years 6 months ago
1998
A class of interval-based temporal languages for uniformly representing and reasoning about actions and plans is presented. Actions are represented by describing what is true whil...
187
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VLDB
2002
ACM
15 years 6 months ago
2002
ACM
All existing proposals for querying XML (e.g., XQuery) rely on a pattern-specification language that allows (1) path navigation and branching through the label structure of the XM...
186
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VLDB
1987
ACM
15 years 10 months ago
1987
ACM
is at least ae powerful as SQL. Two well known relational query languages that have a sound theoretical foundation are relational algebra and relational calculus. As SQL is more cl...
192
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IJCAI
2003
15 years 8 months ago
2003
Motivated by medical terminology applications, we investigate the decidability of the well known expressive DL, SHIQ, extended with role inclusion axioms (RIAs) of the form R ◦ ...
201
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DLOG
2000
15 years 8 months ago
2000
Recently, there has been a wide interest in using ontologies on the Web. As a basis for this, RDF Schema (RDFS) provides means to define vocabulary, structure and constraints for ...