6846 search results - page 264 / 1370 » Querying a summary of database |
174
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JANCL
2006
15 years 6 months ago
2006
This paper describes an experimental platform for approximate knowledge databases called the Approximate Knowledge Database (AKDB), based on a semantics inspired by rough sets. The...
183
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SIGMOD
2010
ACM
15 years 11 months ago
2010
ACM
Current relational databases require that a database schema exist prior to data entry and require manual optimization for best performance. We describe the query optimization tech...
187
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DATESO
2010
15 years 4 months ago
2010
Abstract. The task of similarity search in multimedia databases is usually accomplished by range or k nearest neighbor queries. However, the expressing power of these "single-...
189
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ICEBE
2005
IEEE
16 years 6 days ago
2005
IEEE
Over a traditional Database Management System (DBMS), the answer to an aggregate query is usually much smaller than the answer to a similar nonaggregate query. Therefore, we call ...
151
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PODS
2003
ACM
16 years 6 months ago
2003
ACM
In this paper we study the following problem. Given a database and a set of queries, we want to find, in advance, a set of views that can compute the answers to the queries, such ...