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ICASSP
2008
IEEE
15 years 6 months ago
Factorized variational approximations for acoustic multi source localization
Estimation based on received signal strength (RSS) is crucial in sensor networks for sensor localization, target tracking, etc. In this paper, we present a Gaussian approximation ...
Volkan Cevher, Aswin C. Sankaranarayanan, Rama Che...
ICC
2007
IEEE
15 years 6 months ago
Accurate Approximations for the Capacity Distribution of OFDM-Based Spatial Multiplexing
Abstract— We derive new analytic approximations to the capacity distribution of frequency-selective Rayleigh fading MIMO channels. The results apply specifically to OFDM-based s...
Matthew R. McKay, Peter J. Smith, Himal A. Surawee...
HYBRID
2007
Springer
15 years 6 months ago
Approximation of the Joint Spectral Radius of a Set of Matrices Using Sum of Squares
We provide an asymptotically tight, computationally efficient approximation of the joint spectral radius of a set of matrices using sum of squares (SOS) programming. The approach i...
Pablo A. Parrilo, Ali Jadbabaie
DAC
1996
ACM
15 years 4 months ago
Efficient Approximation Algorithms for Floorplan Area Minimization
Approximation has been shown to be an eective method for reducing the time and space costs of solving various oorplan area minimization problems. In this paper, we present several...
Danny Z. Chen, Xiaobo Hu
AAECC
1995
Springer
137views Algorithms» more  AAECC 1995»
15 years 3 months ago
About Approximations of Exponentials
Abstract. We look for the approximation of exp(A1 + A2) by a product in form exp(x1A1) exp(y1A2) · · · exp(xnA1) exp(ynA2). We specially are interested in minimal approximations...
Pierre-Vincent Koseleff