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SIGIR
2008
ACM
15 years 7 months ago
Measuring concept relatedness using language models
Over the years, the notion of concept relatedness has attracted considerable attention. A variety of approaches, based on ontology structure, information content, association, or ...
Dolf Trieschnigg, Edgar Meij, Maarten de Rijke, We...
SIGIR
2008
ACM
15 years 7 months ago
Posterior probabilistic clustering using NMF
We introduce the posterior probabilistic clustering (PPC), which provides a rigorous posterior probability interpretation for Nonnegative Matrix Factorization (NMF) and removes th...
Chris H. Q. Ding, Tao Li, Dijun Luo, Wei Peng
JCP
2007
115views more  JCP 2007»
15 years 7 months ago
Toward The Use Of The Time-Warping Principle With Discrete-Time Sequences
Abstract—This paper establishes a new coherent framework to extend the class of unitary warping operators to the case of discrete–time sequences. Providing some a priori consid...
Arnaud Jarrot, Cornel Ioana, André Quinquis
ICASSP
2011
IEEE
14 years 11 months ago
Construction of positive time-frequency distributions using dynamic copula
In this paper we propose a novel approach termed as dynamic copula time-frequency distribution (DCTFD) for the construction of positive time-frequency distributions (PTFDs). DCTFD...
Shwan Ashrafi, Hamidreza Amindavar, James A. Ritce...

Book
3743views
17 years 4 months ago
Image processing and data analysis: The multiscale approach
"There is a very large literature on the theoretical underpinnings of the wavelet transform. However, theory must be complemented with a significant amount of practical work...
Jean-Luc Starck, Fionn Murtagh, Albert Bijaoui