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178
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MOR
2010
15 years 4 months ago
2010
We study the convergence properties of an alternating proximal minimization algorithm for nonconvex structured functions of the type: L(x, y) = f(x)+Q(x, y)+g(y), where f : Rn → ...
162
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IVC
2007
15 years 6 months ago
2007
The problem of clustering is often addressed with techniques based on a Voronoi partition of the data space. Vector quantization is based on a similar principle, but it is a diffe...
176
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SIAMSC
2011
15 years 1 months ago
2011
A scheme is presented for the numerical solution of singular integral equations on piecewise smooth curves. It relies on several techniques: reduction, Nystr¨om discretization, co...
151
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ICCD
2005
IEEE
16 years 3 months ago
2005
IEEE
Increasing cache latencies limit L1 cache sizes. In this paper we investigate restrictive compression techniques for level 1 data cache, to avoid an increase in the cache access l...
181
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VLDB
2004
ACM
15 years 11 months ago
2004
ACM
It is well established that bitmap indices are efficient for read-only attributes with low attribute cardinalities. For an attribute with a high cardinality, the size of the bitma...