2409 search results - page 57 / 482 » On Extended Regular Expressions |
ICDM
2009
IEEE
15 years 4 months ago
2009
IEEE
—With the vast increase in collection and storage of data, the problem of data summarization is most critical for effective data management. Since much of this data is categorica...
101
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FOIKS
2004
Springer
15 years 3 months ago
2004
Springer
Abstract. We give a general framework for approximate query processing in semistructured databases. We focus on regular path queries, which are the integral part of most of the que...
104
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DBPL
2001
Springer
15 years 2 months ago
2001
Springer
Abstract. We are interested in the theoretical foundations of the optimization of conjunctive regular path queries (CRPQs). The basic problem here is deciding query containment bot...
CORR
2007
Springer
14 years 9 months ago
2007
Springer
The study of finite automata and regular languages is a privileged meeting point of algebra and logic. Since the work of Büchi, regular languages have been classified according ...
FOSSACS
2011
Springer
14 years 1 months ago
2011
Springer
We describe a general decomposition mechanism to express the derivation relation of a word rewriting system R as the composition of a (regular) substitution followed by the derivat...