Sciweavers

ICASSP
2008
IEEE
14 years 6 months ago
Human perception of synthetic character emotions in the presence of conflicting and congruent vocal and facial expressions
Audio-visual emotion expression by synthetic agents is widely employed in research, industrial, and commercial applications. However, the mechanism through which people judge the ...
Emily Mower, Sungbok Lee, Maja J. Mataric, Shrikan...
ICASSP
2008
IEEE
14 years 6 months ago
A realistic performance analysis for practical channel-aware scheduling
It is well-known that opportunistic transmission schemes are sumcapacity optimal, in the Shannon sense, for symmetric cellular networks with single-antenna transceivers. However, ...
Pengcheng Zhan, Ramesh Annavajjala, A. Lee Swindle...
ICASSP
2008
IEEE
14 years 6 months ago
Adaptive resolution-constrained scalar multiple-description coding
We consider adaptive two-channel multiple-description coding. We provide an analytical method for designing a resolutionconstrained symmetrical multiple-description coder that use...
Janusz Klejsa, Marcin Kuropatwinski, W. Bastiaan K...
ICASSP
2008
IEEE
14 years 6 months ago
Distributed average consensus with increased convergence rate
The average consensus problem in the distributed signal processing context is addressed by linear iterative algorithms, with asymptotic convergence to the consensus. The convergen...
Boris N. Oreshkin, Tuncer C. Aysal, Mark Coates
ICASSP
2008
IEEE
14 years 6 months ago
A normalized adaptation scheme for the convex combination of two adaptive filters
Adaptive filtering schemes are subject to different tradeoffs regarding their steady-state misadjustment, speed of convergence and tracking performance. To alleviate these comp...
Luis Antonio Azpicueta-Ruiz, Aníbal R. Figu...
ICASSP
2008
IEEE
14 years 6 months ago
Audiovisual-to-articulatory speech inversion using Active Appearance Models for the face and Hidden Markov Models for the dynami
We are interested in recovering aspects of vocal tract’s geometry and dynamics from auditory and visual speech cues. We approach the problem in a statistical framework based on ...
Athanassios Katsamanis, George Papandreou, Petros ...
ICASSP
2008
IEEE
14 years 6 months ago
A comparative study of probabilistic ranking models for spoken document summarization
The purpose of extractive document summarization is to automatically select a number of indicative sentences, passages, or paragraphs from the original document according to a tar...
Shih-Hsiang Lin, Yi-Ting Chen, Hsin-Min Wang, Bin ...
ICASSP
2008
IEEE
14 years 6 months ago
Position location by time reversal in communication networks
— Multipath effects are significant in urban or indoor communications. Current position location techniques such as TDOA suffer from multipath effects, which reduces the estimat...
Yuanwei Jin, Nicholas O'Donoughue, José M. ...
ICASSP
2008
IEEE
14 years 6 months ago
Fast perfect weighted resampling
We describe an algorithm for perfect weighted-random sampling of a population with time complexity O(m + n) for sampling m inputs to produce n outputs. This algorithm is an increm...
Bart Massey
ICASSP
2008
IEEE
14 years 6 months ago
Minimum mean bayes risk error quantization of prior probabilities
Bayesian hypothesis testing is investigated when the prior probabilities of the hypotheses, taken as a random vector, must be quantized. Nearest neighbor and centroid conditions f...
Kush R. Varshney, Lav R. Varshney