780 search results - page 75 / 156 » Cost-Sharing Approximations for h |
ICASSP
2011
IEEE
14 years 3 months ago
2011
IEEE
—This paper deals with optimized training sequences to estimate multiple-input multiple-output orthogonal frequencydivision multiplexing (MIMO-OFDM) channel states in the presenc...
WWW
2004
ACM
15 years 12 months ago
2004
ACM
Search engines use content and link information to crawl, index, retrieve, and rank Web pages. The correlations between similarity measures based on these cues and on semantic ass...
KDD
2008
ACM
15 years 11 months ago
2008
ACM
We introduce the problem of query decomposition, where we are given a query and a document retrieval system, and we want to produce a small set of queries whose union of resulting...
STOC
2002
ACM
15 years 11 months ago
2002
ACM
Cooper, Dyer and Frieze studied the problem of sampling H-colourings (nearly) uniformly at random. Special cases of this problem include sampling colourings and independent sets a...
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AVSS
2009
IEEE
15 years 6 months ago
2009
IEEE
This paper presents a background segmentation technique, which is able to process acceptable segmentation masks under fast global illumination changes. The histogram of the frame-...