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ICASSP
2010
IEEE
15 years 1 months ago
A new voice source model based on high-speed imaging and its application to voice source estimation
There are numerous models of varying complexities which seek to efficiently represent the voice source signal. These models are typically based on data and observations which can...
Yen-Liang Shue, Abeer Alwan
ICASSP
2010
IEEE
14 years 10 months ago
Statistical hypothesis testing with time-frequency surrogates to check signal stationarity
An operational framework is developed for testing stationarity relatively to an observation scale. The proposed method makes use of a family of stationary surrogates for defining ...
Cédric Richard, André Ferrari, Hassa...
ICASSP
2011
IEEE
14 years 6 months ago
Quantization and power allocation in wireless sensor networks with correlated data
Abstract— This work addresses the problem of joint quantization and power allocation in wireless sensor networks where sensors observe a source, quantize their observations and t...
Muhammad Hafeez Chaudhary, Luc Vandendorpe
ICASSP
2011
IEEE
14 years 6 months ago
Deconvolution of neuronal signal from hemodynamic response
In this paper we describe a deconvolution technique for obtaining an approximation of the neuronal signal from an observed hemodynamic response in fMRI data. Our approach, based o...
Martin Havlicek, Jirí Jan, Milan Brazdil, V...
ECIS
2004
15 years 4 months ago
An ethnographic study of IS investment appraisal
Both academics and practitioners have invested considerably in the information systems evaluation arena, yet rewards remain elusive. The aim of this paper is to provide rich insig...
Debra Howcroft, Robert McDonald