Sciweavers

ICASSP
2011
IEEE
12 years 11 months ago
Speaker recognition using multiple kernel learning based on conditional entropy minimization
We applied a multiple kernel learning (MKL) method based on information-theoretic optimization to speaker recognition. Most of the kernel methods applied to speaker recognition sy...
Tetsuji Ogawa, Hideitsu Hino, Nima Reyhani, Noboru...
ICASSP
2011
IEEE
12 years 11 months ago
Sparse spectral factorization: Unicity and reconstruction algorithms
Spectral factorization is a classical tool in signal processing and communications. It also plays a critical role in X-ray crystallography, in the context of phase retrieval. In t...
Yue M. Lu, Martin Vetterli
ICASSP
2011
IEEE
12 years 11 months ago
Risk management for trading in multiple frequencies
We present fundamental concepts of risk and propose two methods for risk management of a portfolio in this paper. Moreover, we introduce their novel extensions to trading in multi...
Mustafa U. Torun, Ali N. Akansu, Marco Avellaneda
ICASSP
2011
IEEE
12 years 11 months ago
Lexical access experiments with context-dependent articulatory feature-based models
We address the problem of pronunciation variation in conversational speech with a context-dependent articulatory featurebased model. The model is an extension of previous work usi...
Preethi Jyothi, Karen Livescu, Eric Fosler-Lussier
ICASSP
2011
IEEE
12 years 11 months ago
Blind channel estimation for MPSK-based amplify-and-forward two-way relaying
We consider the problem of channel estimation for amplify-andforward (AF) two-way relay networks (TWRNs). The majority of works on this problem develop pilot-based algorithms that...
Saeed Abdallah, Ioannis N. Psaromiligkos
ICASSP
2011
IEEE
12 years 11 months ago
A robust quantization method using a robust Chinese remainder theorem for secret key generation
Traditional channel quantization based methods for encryption key generation usually suffer from the quantization error which may decrease the key agreement ratio between authoriz...
Wenjie Wang, Chen Wang, Xiang-Gen Xia
ICASSP
2011
IEEE
12 years 11 months ago
On single-channel noise reduction in the time domain
In this paper, we revisit the noise-reduction problem in the time domain and present a way to decompose the ltered speech into two uncorrelated (orthogonal) components: the desire...
Jingdong Chen, Jacob Benesty, Yiteng Huang, Tomas ...
ICASSP
2011
IEEE
12 years 11 months ago
Non-linear noise compensation for robust speech recognition using Gauss-Newton method
In this paper, we present the Gauss-Newton method as a unified approach to optimizing non-linear noise compensation models, such as vector Taylor series (VTS), data-driven parall...
Yong Zhao, Biing-Hwang Juang
ICASSP
2011
IEEE
12 years 11 months ago
Variational methods for spectral unmixing of hyperspectral images
This paper studies a variational Bayesian unmixing algorithm for hyperspectral images based on the standard linear mixing model. Each pixel of the image is modeled as a linear com...
Olivier Eches, Nicolas Dobigeon, Jean-Yves Tourner...
ICASSP
2011
IEEE
12 years 11 months ago
On spatio-temporal Tomlinson Harashima Precoding in IIR channels: MMSE solution, properties, and fast computation
We consider spatio-temporal Tomlinson Harashima Precoding where the feedforward filter is located at the transmitter and an additional scalar gain is employed as receive filter....
Sander Wahls, Holger Boche