Sciweavers

ICASSP
2011
IEEE
13 years 8 days ago
An extension of the ICA model using latent variables
The Independent Component Analysis (ICA) model is extended to the case where the components are not necessarily independent: depending on the value a hidden latent process at the ...
Selwa Rafi, Marc Castella, Wojciech Pieczynski
ICASSP
2011
IEEE
13 years 8 days ago
RSS-based sensor localization with unknown transmit power
Received signal strength (RSS)-based single source localization when there is not a prior knowledge about the transmit power of the source is investigated. Because of nonconvex be...
Reza M. Vaghefi, Mohammad Reza Gholami, Erik G. St...
ICASSP
2011
IEEE
13 years 8 days ago
Parameter estimation using sparse reconstruction with dynamic dictionaries
We consider the problem of parameter estimation for signals characterized by sums of parameterized functions. We present a dynamic dictionary subset selection approach to paramete...
Christian D. Austin, Joshua N. Ash, Randolph L. Mo...
ICASSP
2011
IEEE
13 years 8 days ago
Performance analysis of a randomly spaced wireless microphone array
A randomly distributed microphone array is considered in this work. In many applications exact design of the array is impractical. The performance of these arrays, characterized b...
Shmulik Markovich Golan, Sharon Gannot, Israel Coh...
ICASSP
2011
IEEE
13 years 8 days ago
Iterative estimation of structures of multiple RNA homologs: Turbofold
TurboFold, an iterative algorithm for estimating the common secondary structures of multiple RNA homologs, is presented. The algorithm is motivated by and has structure and attrib...
Gaurav Sharma, Arif Ozgun Harmanci, David H. Mathe...
ICASSP
2011
IEEE
13 years 8 days ago
Fundamental diversity, multiplexing, and array gain tradeoff under different MIMO channel models
Following the seminal work of Zheng and Tse on the diversity and multiplexing tradeoff (DMT) of MIMO channels, in this paper we introduce the array gain to investigate the fundame...
Luis Garcia Ordóñez, Daniel Pé...
ICASSP
2011
IEEE
13 years 8 days ago
DSP evolution from a teaching point of view
In this paper the authors are addressing the concerns associated with fast growing DSP chips and tools and the impact they have on teaching DSP implementation. The authors also pr...
Naim Dahnoun, Jason Brand
ICASSP
2011
IEEE
13 years 8 days ago
Causal signal recovery from U-invariant samples
Causal processing of a signal’s samples is crucial in on-line applications such as audio rate conversion, compression, tracking and more. This paper addresses the problem of cau...
Tomer Michaeli, Yonina C. Eldar, Volker Pohl
ICASSP
2011
IEEE
13 years 8 days ago
Median filter with absolute value norm spatial regularization
We provide a novel formulation for computing median filter with spatial regularization as minimizing a cost function composed of absolute value norms. We turn this cost minimizat...
Nilanjan Ray
ICASSP
2011
IEEE
13 years 8 days ago
Novel beamformers for Multiple Correlated brain source localization and reconstruction
This paper introduces two novel beamforming algorithms, namely the Region Constrained and Multiple Correlated Source Model beamformers, designed to localize and to reconstruct hig...
Hung V. Dang, Kwong T. Ng, James K. Kroger