Sciweavers

ICASSP
2011
IEEE
13 years 3 months ago
A sparsity based criterion for solving the permutation ambiguity in convolutive blind source separation
In this paper, we present a new algorithm for solving the permutation ambiguity in convolutive blind source separation. A common approach for separation of convolutive mixtures is...
Radoslaw Mazur, Alfred Mertins
ICASSP
2011
IEEE
13 years 3 months ago
Approximate nearest-subspace representations for sound mixtures
In this paper we present a novel approach to describe sound mixtures which is based on a geometric viewpoint. In this approach we extend the idea of a nearest-neighbor representat...
Paris Smaragdis
ICASSP
2011
IEEE
13 years 3 months ago
Sampling and reconstructing diffusion fields with localized sources
We study the spatiotemporal sampling of a diffusion field generated by K point sources, aiming to fully reconstruct the unknown initial field distribution from the sample measur...
Juri Ranieri, Amina Chebira, Yue M. Lu, Martin Vet...
ICASSP
2011
IEEE
13 years 3 months ago
Subsequence similarity language models
In this work we present the Subsequence Similarity Language Model (S2-LM) which is a new approach to language modeling based on string similarity. As a language model, S2-LM gener...
Juan M. Huerta
ICASSP
2011
IEEE
13 years 3 months ago
Distributed training of large scale exponential language models
Shrinkage-based exponential language models, such as the recently introduced Model M, have provided significant gains over a range of tasks [1]. Training such models requires a l...
Abhinav Sethy, Stanley F. Chen, Bhuvana Ramabhadra...
ICASSP
2011
IEEE
13 years 3 months ago
Learning sparse dictionaries with a popularity-based model
Sparse signal representation based on overcomplete dictionaries has recently been extensively investigated, rendering the state-of-the-art results in signal, image and video proce...
Jianzhou Feng, Li Song, Xiaoming Huo, Xiaokang Yan...
ICASSP
2011
IEEE
13 years 3 months ago
A state space model for online polyphonic audio-score alignment
We present a novel online audio-score alignment approach for multiinstrument polyphonic music. This approach uses a 2-dimensional state vector to model the underlying score positi...
Zhiyao Duan, Bryan Pardo
ICASSP
2011
IEEE
13 years 3 months ago
Directional descriptors using zernike moment phases for object orientation estimation in underwater sonar images
Conventional methods for rotation angle estimation are not very robust to variations in object shape or intensity. However in real object recognition scenarios like in underwater ...
Naveen Kumar, Adam C. Lammert, Brendan Englot, Fra...
ICASSP
2011
IEEE
13 years 3 months ago
Transient acoustic signal classification using joint sparse representation
In this paper, we present a novel joint sparse representation based method for acoustic signal classification with multiple measurements. The proposed method exploits the correla...
Haichao Zhang, Nasser M. Nasrabadi, Thomas S. Huan...
ICASSP
2011
IEEE
13 years 3 months ago
Rate distorsion analysis in a disparity compensated scheme
This paper addresses the problem of rate distortion analysis in the context of multi-view image coding, where images are predicted via disparity compensation based on depth map. W...
Valentina Davidoiu, Thomas Maugey, Béatrice...