4616 search results - page 643 / 924 » Beyond relational databases |
264
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VLDB
2007
ACM
16 years 6 months ago
2007
ACM
Estimating the cardinality (i.e. number of distinct elements) of an arbitrary set expression defined over multiple distributed streams is one of the most fundamental queries of in...
259
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VLDB
2007
ACM
16 years 6 months ago
2007
ACM
Record matching is the task of identifying records that match the same real world entity. This is a problem of great significance for a variety of business intelligence applicatio...
248
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VLDB
2007
ACM
16 years 6 months ago
2007
ACM
This paper analyzes the performance of concurrent (index) scan operations in both record (NSM/PAX) and column (DSM) disk storage models and shows that existing scheduling policies...
260
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VLDB
2007
ACM
16 years 6 months ago
2007
ACM
In this paper we argue that developing information extraction (IE) programs using Datalog with embedded procedural extraction predicates is a good way to proceed. First, compared ...
278
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VLDB
2008
ACM
16 years 6 months ago
2008
ACM
Abstract Existing spatiotemporal indexes suffer from either large update cost or poor query performance, except for the Bx -tree (the state-of-the-art), which consists of multiple ...