3341 search results - page 274 / 669 » On Bounded Queries and Approximation |
172
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DAGSTUHL
2004
15 years 8 months ago
2004
We study the optimal approximation of the solution of an operator equation A(u) = f by four types of mappings: a) linear mappings of rank n; b) n-term approximation with respect t...
289
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EDBT
2011
ACM
14 years 10 months ago
2011
ACM
Equi-depth histograms represent a fundamental synopsis widely used in both database and data stream applications, as they provide the cornerstone of many techniques such as query ...
163
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SIGMOD
2001
ACM
16 years 6 months ago
2001
ACM
Caching approximate values instead of exact values presents an opportunity for performance gains in exchange for decreased precision. To maximize the performance improvement, cach...
178
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ICC
2007
IEEE
16 years 1 months ago
2007
IEEE
— Non-linear amplitude distortion may be the key impairment in some practical multiple-input multipleoutput (MIMO) communications systems. However, there are only a few past inve...
180
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JCO
2008
15 years 6 months ago
2008
The problem of partitioning a partially ordered set into a minimum number of chains is a well-known problem. In this paper we study a generalization of this problem, where we not ...