7607 search results - page 103 / 1522 » Querying data provenance |
258
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ICDE
2000
IEEE
16 years 7 months ago
2000
IEEE
Execution plans produced by traditional query optimizers for data integration queries may yield poor performance for several reasons. The cost estimates may be inaccurate, the mem...
170
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DGO
2004
15 years 7 months ago
2004
Peer-to-peer networks are becoming a common form of online data exchange. Querying data, mostly files, using keywords on peer-to-peer networks is well-known. But users cannot perf...
169
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WWW
2006
ACM
16 years 7 months ago
2006
ACM
In this paper, we proposed an online algorithm, called FQT-Stream (Frequent Query Trees of Streams), to mine the set of all frequent tree patterns over a continuous XML data strea...
152
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VLDB
1994
ACM
15 years 10 months ago
1994
ACM
As video data is penetrating many information systems the need for database support for video data evolves. In this paper we present a generic data model that captures the structu...
156
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SIGIR
2009
ACM
16 years 26 days ago
2009
ACM
We study the recurrence dynamics of queries in Web search by analysing a large real-world query log dataset. We find that query frequency is more useful in predicting collective ...