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ICASSP
2011
IEEE
12 years 10 months ago
Generalized interior-point method for constrained peak power minimization of OFDM signals
In this paper we present two results on reducing the peak power of orthogonal frequency division multiplexing (OFDM) symbols via constellation extension (CE). The first result is...
Zhenhua Yu, Robert J. Baxley, G. Tong Zhou
JGO
2010
100views more  JGO 2010»
13 years 1 months ago
On convex relaxations of quadrilinear terms
The best known method to find exact or at least -approximate solutions to polynomial programming problems is the spatial Branch-and-Bound algorithm, which rests on computing lower...
Sonia Cafieri, Jon Lee, Leo Liberti
ACCV
2010
Springer
13 years 2 months ago
A Convex Image Segmentation: Extending Graph Cuts and Closed-Form Matting
Abstract. Image matting and segmentation are two closely related topics that concern extracting the foreground and background of an image. While the methods based on global optimiz...
Youngjin Park, Suk I. Yoo
SDM
2010
SIAM
168views Data Mining» more  SDM 2010»
13 years 5 months ago
Convex Principal Feature Selection
A popular approach for dimensionality reduction and data analysis is principal component analysis (PCA). A limiting factor with PCA is that it does not inform us on which of the o...
Mahdokht Masaeli, Yan Yan, Ying Cui, Glenn Fung, J...
ISPD
1998
ACM
192views Hardware» more  ISPD 1998»
13 years 11 months ago
On convex formulation of the floorplan area minimization problem
It is shown that the oorplan area minimization problem can be formulated as a convex programming problem with the numbers of variables and constraints signi cantly less than those...
Temo Chen, Michael K. H. Fan