2546 search results - page 69 / 510 » Managing long-running queries |
313
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AMW
2011
14 years 10 months ago
2011
Abstract. We consider the problem of checking equivalence of conjunctive queries with inequalities under bag (multiset) semantics. The problem is known to be decidable in pspace an...
199
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BDA
2007
15 years 7 months ago
2007
Sharing huge, massively distributed databases in P2P systems is inherently difficult. As the amount of stored data increases, data localization techniques become no longer suffi...
138
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OTM
2007
Springer
16 years 13 days ago
2007
Springer
Abstract. In P2P data management systems, semantic interoperability between any two peers that do not share the same ontology relyes on ontology matching. The established correspon...
183
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MOBIDE
2010
ACM
15 years 6 months ago
2010
ACM
Complex event detection over data streams has become ubiquitous through the widespread use of sensors, wireless connectivity and the wide variety of end-user mobile devices. Typic...
132
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EDBT
2006
ACM
16 years 6 months ago
2006
ACM
We present the architecture of Natix V2. Among the features of this native XML Data Store are an optimizing XPath query compiler and a powerful API. In our demonstration we explain...