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SIAMSC
2008
237views more  SIAMSC 2008»
13 years 8 months ago
A Variational Shape Optimization Approach for Image Segmentation with a Mumford--Shah Functional
We introduce a novel computational method for a Mumford-Shah functional, which decomposes a given image into smooth regions separated by closed curves. Casting this as a shape opti...
Günay Dogan, Pedro Morin, Ricardo H. Nochetto
BDIM
2007
IEEE
58views Business» more  BDIM 2007»
14 years 3 months ago
Derivation of Response Time Service Level Objectives for Business Services
— Design of Service Level Agreements (SLAs) emerges as an increasingly important discipline in business-oriented IT management. In this work, we study utility maximization of con...
David Breitgand, Elean A. Henis, Onn Shehory, John...
ISCAS
2008
IEEE
106views Hardware» more  ISCAS 2008»
14 years 3 months ago
Hilbert transformers with a piecewise-polynomial-sinusoidal impulse response
— Hilbert transformers are one of the very important special classes of finite impulse response (FIR) filters used in signal processing applications. A method is presented to s...
Raija Lehto, Tapio Saramäki, Olli Vainio
ICC
2007
IEEE
109views Communications» more  ICC 2007»
14 years 3 months ago
Design Linear Multiuser Transmitters from Linear Multiuser Receivers
— Novel concepts are introduced for finding the relationship between multiuser detection (MUD) and multiuser transmission (MUT), so that the study in MUT can benefit from the w...
Lie-Liang Yang
STOC
2007
ACM
169views Algorithms» more  STOC 2007»
14 years 9 months ago
Proportional response dynamics leads to market equilibrium
One of the main reasons of the recent success of peer to peer (P2P) file sharing systems such as BitTorrent is its built-in tit-for-tat mechanism. In this paper, we model the band...
Fang Wu, Li Zhang