5221 search results - page 235 / 1045 » An On-line Problem Database |
176
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CINQ
2004
Springer
15 years 12 months ago
2004
Springer
Abstract. Instance retraction is a difficult problem for concept learning by version spaces. This chapter introduces a family of version-space representations called one-sided inst...
156
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EUSFLAT
2003
15 years 8 months ago
2003
This paper deals with a problem of multicriteria selection assuming uncertainties including linguistic modifiers both in given data and in queries referring to these data. An app...
142
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SIGMOD
2008
ACM
15 years 6 months ago
2008
ACM
We introduce the Spicy system, a novel approach to the problem of automatically selecting the best mappings among two data sources. Known schema mapping algorithms rely on value c...
252
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SIGMOD
2008
ACM
16 years 6 months ago
2008
ACM
Today's enterprise databases are large and complex, often relating hundreds of entities. Enabling ordinary users to query such databases and derive value from them has been o...
231
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SDB
1995
15 years 10 months ago
1995
Most of work on partial information in databases asks which operations of standard languages, like relational algebra, can still be performed correctly in the presence of nulls. In...