ICASSP
2011
IEEE
13 years 3 months ago
2011
IEEE
—In this paper we investigate the local probability density function (pdf) of natural signals in sparse domains. The statistical properties of natural signals are characterized m...
ICASSP
2011
IEEE
13 years 3 months ago
2011
IEEE
In previous work, a water-filling algorithm was proposed which sought to minimize the mean square error (MSE) at any given time by optimally choosing the gains (i.e. step-sizes) ...
ICASSP
2011
IEEE
13 years 3 months ago
2011
IEEE
For spoken document retrieval, it is very important to consider Out-of-Vocabulary (OOV) and mis-recognition of spoken words. Therefore, sub-word unit based recognition and retriev...
ICASSP
2011
IEEE
13 years 3 months ago
2011
IEEE
Recently, the margin criterion has been successfully used for parameter optimization in graphical models. We introduce maximum margin based structure learning for Bayesian network...
ICASSP
2011
IEEE
13 years 3 months ago
2011
IEEE
This paper presents a novel method of visual saliency detection. The use of saliency promises benefits to multimedia applications. However, up to now just few reasonable applicat...
ICASSP
2011
IEEE
13 years 3 months ago
2011
IEEE
Consider a robust downlink beamforming optimization problem for secondary multicast transmission in a multiple-input multiple-output (MIMO) spectrum sharing cognitive radio (CR) n...
ICASSP
2011
IEEE
13 years 3 months ago
2011
IEEE
Passive sonar arrays are often used to find submerged vessels by measuring their radiated signal. Acoustic vector-sensor (AVS) arrays, which are normally towed by the ship at the...
ICASSP
2011
IEEE
13 years 3 months ago
2011
IEEE
In this paper, we develop the theory of a new class of two dimensional arrays with sensors on lattice(s) which can be used to construct a virtual array of much larger size through...
ICASSP
2011
IEEE
13 years 3 months ago
2011
IEEE
The purpose of this paper is to develop an algorithm achieving the performance of fixed-complexity decoder (FSD) with much lower complexity than FSD. An adaptive expansion strate...
ICASSP
2011
IEEE
13 years 3 months ago
2011
IEEE
The performance of a typical speaker verification system degrades significantly in reverberant environments. This degradation is partly due to the conventional feature extractio...