ICASSP
2009
IEEE
13 years 11 months ago
2009
IEEE
— We study the inversion of a random field from pointwise measurements collected by a sensor network. We assume that the field has a sparse representation in a known basis. To ...
ICASSP
2009
IEEE
13 years 11 months ago
2009
IEEE
Target detection in sea clutter is a challenging problem in radar detection, specifically, when the Doppler return of the target and clutter are collocated. Polarization diverse ...
ICASSP
2009
IEEE
13 years 11 months ago
2009
IEEE
The problem of transmit beamforming for single-group multicasting is considered, where the objective is to transmit common information to a (large) number of users. The transmitte...
ICASSP
2009
IEEE
13 years 11 months ago
2009
IEEE
This paper describes a method for solving the permutation problem in the frequency-domain independent component analysis (FD-ICA) approach to blind source separation (BSS). FD-ICA...
ICASSP
2009
IEEE
13 years 11 months ago
2009
IEEE
A total corpus-based process of generating prosodic features from text is developed. The process first predicts pauses and phone durations, and then generates F0 contours. Since F...
ICASSP
2009
IEEE
13 years 11 months ago
2009
IEEE
We propose a new approach to adaptive system identification when the system model is sparse. The approach applies the ℓ1 relaxation, common in compressive sensing, to improve t...
ICASSP
2009
IEEE
13 years 11 months ago
2009
IEEE
In previous work we introduced a new missing data imputation method for ASR, dubbed sparse imputation. We showed that the method is capable of maintaining good recognition accurac...
ICASSP
2009
IEEE
13 years 11 months ago
2009
IEEE
In recent work, we studied the problem of causally reconstructing time sequences of spatially sparse signals, with unknown and slow time-varying sparsity patterns, from a limited ...
ICASSP
2009
IEEE
13 years 11 months ago
2009
IEEE
We propose novel algorithms for organizing large image and video datasets using both the visual content and the associated sideinformation, such as time, location, authorship, and...
ICASSP
2009
IEEE
13 years 11 months ago
2009
IEEE
In this paper, we investigate the use of bilingual parsing on parallel corpora to better estimate the rule parameters in a formal syntax-based machine translation system, which ar...