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» An ICA algorithm for analyzing multiple data sets
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DCC
2005
IEEE
14 years 8 months ago
Efficient Alphabet Partitioning Algorithms for Low-Complexity Entropy Coding
We analyze the technique for reducing the complexity of entropy coding consisting in the a priori grouping of the source alphabet symbols, and in dividing the coding process in tw...
Amir Said
SIGMOD
2004
ACM
163views Database» more  SIGMOD 2004»
14 years 9 months ago
Constraint-Based XML Query Rewriting For Data Integration
We study the problem of answering queries through a target schema, given a set of mappings between one or more source schemas and this target schema, and given that the data is at...
Cong Yu, Lucian Popa
TOG
2008
253views more  TOG 2008»
13 years 9 months ago
4-points congruent sets for robust pairwise surface registration
We introduce 4PCS, a fast and robust alignment scheme for 3D point sets that uses wide bases, which are known to be resilient to noise and outliers. The algorithm allows registeri...
Dror Aiger, Niloy J. Mitra, Daniel Cohen-Or
SIGMOD
2011
ACM
152views Database» more  SIGMOD 2011»
13 years 1 days ago
Tracing data errors with view-conditioned causality
A surprising query result is often an indication of errors in the query or the underlying data. Recent work suggests using causal reasoning to find explanations for the surprisin...
Alexandra Meliou, Wolfgang Gatterbauer, Suman Nath...
ICML
1998
IEEE
14 years 10 months ago
The Case against Accuracy Estimation for Comparing Induction Algorithms
We analyze critically the use of classi cation accuracy to compare classi ers on natural data sets, providing a thorough investigation using ROC analysis, standard machine learnin...
Foster J. Provost, Tom Fawcett, Ron Kohavi