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TSP
2008
115views more  TSP 2008»
15 years 3 months ago
Approximation Bounds for Semidefinite Relaxation of Max-Min-Fair Multicast Transmit Beamforming Problem
Consider a downlink multicast scenario where a base station equipped with multiple antennas wishes to simultaneously broadcast a number of signals to some given groups of users ove...
Tsung-Hui Chang, Zhi-Quan Luo, Chong-Yung Chi
148
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COMCOM
1998
83views more  COMCOM 1998»
15 years 3 months ago
System for screening objectionable images
As computers and Internet become more and more available to families, access of objectionable graphics by children is increasingly a problem that many parents are concerned about....
James Ze Wang, Jia Li, Gio Wiederhold, Oscar Firsc...
127
Voted
JSC
2010
155views more  JSC 2010»
15 years 2 months ago
Algorithms for solving linear systems over cyclotomic fields
We consider the problem of solving a linear system Ax = b over a cyclotomic field. What makes cyclotomic fields of special interest is that we can easily find a prime p that sp...
Liang Chen, Michael B. Monagan
PRL
2010
188views more  PRL 2010»
14 years 10 months ago
A fast divisive clustering algorithm using an improved discrete particle swarm optimizer
As an important technique for data analysis, clustering has been employed in many applications such as image segmentation, document clustering and vector quantization. Divisive cl...
Liang Feng, Ming-Hui Qiu, Yu-Xuan Wang, Qiao-Liang...
TIT
2010
137views Education» more  TIT 2010»
14 years 10 months ago
Average case analysis of multichannel sparse recovery using convex relaxation
This paper considers recovery of jointly sparse multichannel signals from incomplete measurements. Several approaches have been developed to recover the unknown sparse vectors from...
Yonina C. Eldar, Holger Rauhut