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287
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SIGMOD
2009
ACM
16 years 6 months ago
2009
ACM
Nearest neighbor (NN) search in high dimensional space is an important problem in many applications. Ideally, a practical solution (i) should be implementable in a relational data...
247
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SIGMOD
2008
ACM
16 years 6 months ago
2008
ACM
Online Transaction Processing (OLTP) databases include a suite of features -- disk-resident B-trees and heap files, locking-based concurrency control, support for multi-threading ...
238
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
Two trends are converging to make the CPU cost of a table scan a more important component of database performance. First, table scans are becoming a larger fraction of the query p...
167
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SIGMOD
2002
ACM
16 years 6 months ago
2002
ACM
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...
179
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SIGMOD
2001
ACM
16 years 6 months ago
2001
ACM
Digital archives are dedicated to the long-term preservation of electronic information and have the mandate to enable sustained access despite rapid technology changes. Persistent...