8763 search results - page 1468 / 1753 » Querying Database Knowledge |
162
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DOLAP
2000
ACM
15 years 11 months ago
2000
ACM
We consider the view maintenance problem in a web-based environment, in which clients query information from databases, stored in the form of materialized data warehouses, without...
172
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DEXAW
1999
IEEE
15 years 11 months ago
1999
IEEE
The design of efficient textual similarities is an important issue in the domain of textual data exploration. Textual similarities are for example central in document collection s...
157
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HICSS
1999
IEEE
15 years 11 months ago
1999
IEEE
Typically, searching for information in a document collection amounts to refining a query and then scanning a large number of documents to determine their relevance. Active Summar...
158
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SIGMOD
1999
ACM
15 years 11 months ago
1999
ACM
In this paper, we introduce self-tuning histograms. Although similar in structure to traditional histograms, these histograms infer data distributions not by examining the data or...
157
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SIGMOD
1999
ACM
15 years 11 months ago
1999
ACM
A major bottleneck in implementing sampling as a primitive relational operation is the ine ciency ofsampling the output of a query. It is not even known whether it is possible to ...