Sciweavers

2743 search results - page 22 / 549
» Minimization of an M-convex Function
Sort
View
ISBI
2004
IEEE
14 years 8 months ago
Cortical Surface Parameterization by P-Harmonic Energy Minimization
Cortical surface parameterization has several applications in visualization and analysis of the brain surface. Here we propose a scheme for parameterizing the surface of the cereb...
Anand A. Joshi, Richard M. Leahy, Paul M. Thompson...
IBPRIA
2005
Springer
14 years 1 months ago
Multispectral Image Segmentation by Energy Minimization for Fruit Quality Estimation
Abstract. This article presents the results of an unsupervised segmentation algorithm in multispectral images. The algorithm uses a minimization function which takes into account e...
Adolfo Martínez Usó, Filiberto Pla, ...
ICASSP
2011
IEEE
12 years 11 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
DAM
2011
13 years 2 months ago
On minimal Sturmian partial words
Partial words, which are sequences that may have some undefined positions called holes, can be viewed as sequences over an extended alphabet A = A ∪ { }, where stands for a hol...
Francine Blanchet-Sadri, John Lensmire
FOCS
2008
IEEE
14 years 2 months ago
Hardness of Minimizing and Learning DNF Expressions
We study the problem of finding the minimum size DNF formula for a function f : {0, 1}d → {0, 1} given its truth table. We show that unless NP ⊆ DTIME(npoly(log n) ), there i...
Subhash Khot, Rishi Saket