448 search results - page 8 / 90 » Queries and Constraints on Semi-structured Data |
CIKM
2004
Springer
15 years 3 months ago
2004
Springer
An important class of queries is the LIKE predicate in SQL. In the absence of an index, LIKE queries are subject to performance degradation. The notion of indexing on substrings (...
MDM
2007
Springer
15 years 3 months ago
2007
Springer
— In mobile ad-hoc peer-to-peer (M-P2P) networks, economic models become a necessity for enticing non-cooperative mobile peers to provide service. M-P2P users may issue queries w...
ER
2007
Springer
15 years 3 months ago
2007
Springer
XML Schema supports the specification of occurrence constraints by declaring values for its min/maxOccurs attributes. These constraints are structural in the sense that they rest...
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ICDE
2011
IEEE
14 years 1 months ago
2011
IEEE
—An increasing amount of data produced nowadays is in RDF format. While significant work has been performed on view selection and query optimization algorithms in relational dat...
ADBIS
2001
Springer
15 years 2 months ago
2001
Springer
Data mining is an interactive and iterative process. It is very likely that a user will execute a series of similar queries differing in pattern constraints and mining parameters,...