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CVPR
2010
IEEE
16 years 1 months ago
Estimation of Image Bias Field with Sparsity Constraints
We propose a new scheme to estimate image bias field through introducing two sparsity constraints. One is that the bias-free image has concise representation with image gradients o...
Yuanjie Zheng and James C. Gee
ICASSP
2009
IEEE
15 years 11 months ago
Testing fractal connectivity in multivariate long memory processes
Within the framework of long memory multivariate processes, fractal connectivity is a particular model, in which the low frequencies (coarse scales) of the interspectrum of each p...
Herwig Wendt, Antoine Scherrer, Patrice Abry, Soph...
ICDM
2009
IEEE
146views Data Mining» more  ICDM 2009»
15 years 11 months ago
Induction of Mean Output Prediction Trees from Continuous Temporal Meteorological Data
: In this paper, we present a novel method for fast data-driven construction of regression trees from temporal datasets including continuous data streams. The proposed Mean Output ...
Dima Alberg, Mark Last, Roni Neuman, Avi Sharon
ADBIS
2009
Springer
151views Database» more  ADBIS 2009»
15 years 11 months ago
Rule-Based Management of Schema Changes at ETL Sources
In this paper, we visit the problem of the management of inconsistencies emerging on ETL processes as results of evolution operations g at their sources. We abstract Extract-Transf...
George Papastefanatos, Panos Vassiliadis, Alkis Si...
CALCO
2009
Springer
176views Mathematics» more  CALCO 2009»
15 years 11 months ago
Complementation of Coalgebra Automata
Abstract. Coalgebra automata, introduced by the second author, generalize the well-known automata that operate on infinite words/streams, trees, graphs or transition systems. This...
Christian Kissig, Yde Venema