1179 search results - page 55 / 236 » Query Containment for Data Integration Systems |
PPSWR
2004
Springer
15 years 3 months ago
2004
Springer
Abstract. Time is omnipresent on the (Semantic) Web. However, formalism like XML, XML Schema, RDF, OWL and (Semantic) Web query languages have, if any, only very limited notions of...
CACM
2008
14 years 8 months ago
2008
During the last decade, multidimensional databases have become common in the business and scientific worlds. Analysis places significant demands on the interfaces to these databas...
SIGMOD
2004
ACM
15 years 10 months ago
2004
ACM
Dynamic plan migration is concerned with the on-the-fly transition from one continuous query plan to a semantically equivalent yet more efficient plan. Migration is important for ...
SIGMOD
1995
ACM
15 years 1 months ago
1995
ACM
Text is a pervasive information type, and many applications require querying over text sources in addition to structured data. This paper studies the problem of query processing i...
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JTAER
2010
14 years 4 months ago
2010
With the emergence of the e-Catalog, there has been an increasingly wide application of commodities query in distributed environment in the field of e-commerce. But e-Catalog is o...