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148
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VLDB
1997
ACM
15 years 9 months ago
1997
ACM
In this paper we describe novel techniques that make it possible to build an industrial-strength tool for automating the choice of indexes in the physical design of a SQL database...
181
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CIDM
2007
IEEE
15 years 9 months ago
2007
IEEE
Recently the academic communities have paid more attention to the queries and mining on uncertain data. In the tasks such as clustering or nearest-neighbor queries, expected distan...
133
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ICDT
1995
ACM
15 years 9 months ago
1995
ACM
Partial information in databases can arise when information from several databases is combined. Even if each database is complete for some \world", the combined databases wil...
146
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VLDB
1991
ACM
15 years 9 months ago
1991
ACM
A model capturing the data manipulation capabilities of a large class of methods in ohjectoriented databases is proposed and investsigated. The model uses a deterministic, paralle...
130
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LWA
2008
15 years 7 months ago
2008
We investigate the topical structure of the set of documents used to expand a query in pseudorelevance feedback (PRF). We propose a coherence score to measure the relative topical...