2121 search results - page 198 / 425 » Indexing Incomplete Databases |
181
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DMIN
2006
15 years 7 months ago
2006
We discovered that the set of frequent hybrid sequential patterns obtained by previous researches is incomplete, due to the inapplicability of the Apriori principle. We design and ...
172
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AAAI
1994
15 years 7 months ago
1994
In this paper we consider updates that are specified as rules and consider simple knowledge bases consisting of ground atoms. We present a translation of the rule based update spe...
263
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ICDT
2009
ACM
16 years 7 months ago
2009
ACM
We study containment and equivalence of (unions of) conjunctive queries on relations annotated with elements of a commutative semiring. Such relations and the semantics of positiv...
214
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WISE
2000
Springer
15 years 10 months ago
2000
Springer
The mediator/wrapper approach is used to integrate data from different databases and other data sources by introducing a middleware virtual database that provides high level abstr...
175
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KDD
2006
ACM
16 years 6 months ago
2006
ACM
Statistics on networks have become vital to the study of relational data drawn from areas such as bibliometrics, fraud detection, bioinformatics, and the Internet. Calculating man...