5055 search results - page 625 / 1011 » Relative Timing |
152
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STOC
2001
ACM
16 years 7 months ago
2001
ACM
In this paper we analyze the behavior of quantum random walks. In particular we present several new results for the absorption probabilities in systems with both one and two absor...
179
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STOC
2001
ACM
16 years 7 months ago
2001
ACM
Histograms are typically used to approximate data distributions. Histograms and related synopsis structures have been successful in a wide variety of popular database applications...
255
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VLDB
2007
ACM
16 years 7 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...
284
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SIGMOD
2009
ACM
16 years 7 months ago
2009
ACM
A common criticism of database systems is that they are hard to query for users uncomfortable with a formal query language. To address this problem, form-based interfaces and keyw...
274
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SIGMOD
2007
ACM
16 years 7 months ago
2007
ACM
This paper describes query processing in the DBO database system. Like other database systems designed for ad-hoc, analytic processing, DBO is able to compute the exact answer to ...