441 search results - page 84 / 89 » Sparse Recovery Using Sparse Random Matrices |
SIAMSC
2008
13 years 7 months ago
2008
In this paper we present a new incomplete factorization of a square matrix into triangular factors in which we get standard LU or LDLT factors (direct factors) and their inverses (...
PODS
2009
ACM
14 years 8 months ago
2009
ACM
The problem of finding heavy hitters and approximating the frequencies of items is at the heart of many problems in data stream analysis. It has been observed that several propose...
SIGMETRICS
2008
ACM
13 years 7 months ago
2008
ACM
Fine-grained network measurement requires routers and switches to update large arrays of counters at very high link speed (e.g. 40 Gbps). A naive algorithm needs an infeasible amo...
CIKM
2010
Springer
13 years 6 months ago
2010
Springer
In image retrieval, most existing approaches that incorporate local features produce high dimensional vectors, which lead to a high computational and data storage cost. Moreover, ...
SPIEVIP
2008
13 years 9 months ago
2008
Adaptive methods are defined and experimentally studied for a two-scale edge detection process that mimics human visual perception of edges and is inspired by the parvo-cellular (...