2853 search results - page 139 / 571 » On the Efficiency of Provenance Queries |
184
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EDBT
2004
ACM
16 years 6 months ago
2004
ACM
We study the problem of answering queries over sources with limited access patterns. The problem is to decide whether a given query Q is feasible, i.e., equivalent to an executable...
199
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DASFAA
2007
IEEE
16 years 24 days ago
2007
IEEE
Nearest-neighbor queries are an important query type for commonly used feature databases. In many different application areas, e.g. sensor databases, location based services or fac...
147
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ADC
2005
Springer
16 years 5 hour ago
2005
Springer
XML query caching for XML database-backed Web applications began to be investigated recently. However, the issue of how the cached query results are stored has not been addressed ...
139
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VLDB
1998
ACM
15 years 10 months ago
1998
ACM
In a recent paper, we proposed adding a STOP AFTER clause to SQL to permit the cardinality of a query result to be explicitly limited by query writers and query tools. We demonstr...
183
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DEXA
2006
Springer
15 years 10 months ago
2006
Springer
Recent work on continuous queries has focused on processing queries in very large, mobile environments. In this paper, we propose a system leveraging the computing capacities of mo...