2145 search results - page 28 / 429 » Pattern-Based Query Answering |
PODS
2010
ACM
15 years 2 months ago
2010
ACM
The notion of certain answers arises when one queries incompletely specified databases, e.g., in data integration and exchange scenarios, or databases with missing information. W...
85
Voted
ICDT
2003
ACM
15 years 2 months ago
2003
ACM
Abstract. Repairing a database means bringing the database in accordance with a given set of integrity constraints by applying modifications that are as small as possible. In the ...
ICDT
2010
ACM
15 years 1 months ago
2010
ACM
Relational data exchange deals with translating a relational database instance over some source schema into a relational database instance over some target schema, according to a ...
84
Voted
SIGMOD
1998
ACM
15 years 1 months ago
1998
ACM
In large data recording and warehousing environments, it is often advantageous to provide fast, approximate answers to queries, whenever possible. Before DBMSs providing highly-ac...
116
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DEXAW
2006
IEEE
14 years 11 months ago
2006
IEEE
A database D may be inconsistent wrt a given set IC of integrity constraints. Consistent Query Answering is the problem of computing from D the answers to a query that are consist...