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ECML
2007
Springer
14 years 3 months ago
Fast Optimization Methods for L1 Regularization: A Comparative Study and Two New Approaches
L1 regularization is effective for feature selection, but the resulting optimization is challenging due to the non-differentiability of the 1-norm. In this paper we compare state...
Mark Schmidt, Glenn Fung, Rómer Rosales
SEMWEB
2010
Springer
13 years 7 months ago
Combining Approximation and Relaxation in Semantic Web Path Queries
We develop query relaxation techniques for regular path queries and combine them with query approximation in order to support flexible querying of RDF data when the user lacks know...
Alexandra Poulovassilis, Peter T. Wood
EJASMP
2010
114views more  EJASMP 2010»
13 years 4 months ago
Wide-Band Audio Coding Based on Frequency-Domain Linear Prediction
In this paper, we re-visit an original concept of speech coding in which the signal is separated into the carrier modulated by the signal envelope. A recently developed technique, ...
Petr Motlícek, Sriram Ganapathy, Hynek Herm...
NAACL
2004
13 years 11 months ago
Discriminative Reranking for Machine Translation
This paper describes the application of discriminative reranking techniques to the problem of machine translation. For each sentence in the source language, we obtain from a basel...
Libin Shen, Anoop Sarkar, Franz Josef Och
KBSE
2006
IEEE
14 years 3 months ago
Identifying Refactorings from Source-Code Changes
Software has been and is still mostly refactored without tool support. Moreover, as we found in our case studies, programmers tend not to document these changes as refactorings, o...
Peter Weißgerber, Stephan Diehl