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» Minimizing NFA's and Regular Expressions
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ICML
2009
IEEE
14 years 9 months ago
Group lasso with overlap and graph lasso
We propose a new penalty function which, when used as regularization for empirical risk minimization procedures, leads to sparse estimators. The support of the sparse vector is ty...
Laurent Jacob, Guillaume Obozinski, Jean-Philippe ...
VLDB
2005
ACM
175views Database» more  VLDB 2005»
14 years 2 months ago
Query Translation from XPath to SQL in the Presence of Recursive DTDs
The interaction between recursion in XPATH and recursion in DTDs makes it challenging to answer XPATH queries on XML data that is stored in an RDBMS via schema-based shredding. We...
Wenfei Fan, Jeffrey Xu Yu, Hongjun Lu, Jianhua Lu,...
ICIP
2006
IEEE
14 years 10 months ago
Active Contour Segmentation with a Parametric Shape Prior: Link with the Shape Gradient
Active contours are adapted to image segmentation by energy minimization. The energies often exhibit local minima, requiring regularization. Such an a priori can be expressed as a...
Eric Debreuve, Michel Barlaud, Jean-Paul Marmorat,...
IPPS
2007
IEEE
14 years 2 months ago
Scheduling in the Z-Polyhedral Model
The polyhedral model is extensively used for analyses and transformations of regular loop programs, one of the most important being automatic parallelization. The model, however, ...
Gautam Gupta, DaeGon Kim, Sanjay V. Rajopadhye
FCT
2005
Springer
14 years 2 months ago
Deterministic Automata on Unranked Trees
Abstract. We investigate bottom-up and top-down deterministic automata on unranked trees. We show that for an appropriate definition of bottom-up deterministic automata it is poss...
Julien Cristau, Christof Löding, Wolfgang Tho...