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VLDB
2008
ACM
196views Database» more  VLDB 2008»
14 years 8 months ago
Modelling retrieval models in a probabilistic relational algebra with a new operator: the relational Bayes
This paper presents a probabilistic relational modelling (implementation) of the major probabilistic retrieval models. Such a high-level implementation is useful since it supports ...
Thomas Rölleke, Hengzhi Wu, Jun Wang, Hany Azzam
CAIP
1995
Springer
200views Image Analysis» more  CAIP 1995»
13 years 11 months ago
The Color Constancy Problem: An Illumination Invariant Mapping Approach
Abstract. We suggest a novel approach to the Color Constancy Problem for multispectral imagery. Our approach is based on a dichromatic illumination model and lters out all spectral...
Rafael Wiemker
TWC
2008
101views more  TWC 2008»
13 years 7 months ago
Interplay of spectral efficiency, power and doppler spectrum for reference-signal-assisted wireless communication
Expressions relating spectral efficiency, power, and Doppler spectrum, are derived for Rayleigh-faded wireless channels with Gaussian signal transmission. No side information on th...
Angel Lozano
MOC
2010
13 years 2 months ago
On the convergence of Hill's method
Hill's method is a means to numerically approximate spectra of linear differential operators with periodic coefficients. In this paper, we address different issues related to...
Christopher W. Curtis, Bernard Deconinck
TSP
2010
13 years 2 months ago
Testing stationarity with surrogates: a time-frequency approach
An operational framework is developed for testing stationarity relatively to an observation scale, in both stochastic and deterministic contexts. The proposed method is based on a ...
Pierre Borgnat, Patrick Flandrin, Paul Honeine, C&...