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ICDT
2010
ACM
180views Database» more  ICDT 2010»
16 years 3 months ago
Foundations of SPARQL Query Optimization
We study fundamental aspects related to the efficient processing of the SPARQL query language for RDF, proposed by the W3C to encode machine-readable information in the Semantic W...
Michael Schmidt, Michael Meier, Georg Lausen
ICASSP
2009
IEEE
16 years 1 months ago
Posterior features applied to speech recognition tasks with user-defined vocabulary
This paper presents a novel approach for those applications where vocabulary is defined by a set of acoustic samples. In this approach, the acoustic samples are used as reference...
Guillermo Aradilla, Hervé Bourlard, Mathew ...
CIKM
2009
Springer
16 years 1 months ago
Fragment-based clustering ensembles
Clustering ensembles combine different clustering solutions into a single robust and stable one. Most of existing methods become highly time-consuming when the data size turns to ...
Ou Wu, Mingliang Zhu, Weiming Hu
CIKM
2009
Springer
16 years 1 months ago
AS-index: a structure for string search using n-grams and algebraic signatures
AS-Index is a new index structure for exact string search in disk resident databases. It uses hashing, unlike known alternate structures, tree or trie based, and indexes every n-g...
Cédric du Mouza, Witold Litwin, Philippe Ri...
ICALP
2005
Springer
16 years 5 hour ago
The Tree Inclusion Problem: In Optimal Space and Faster
Given two rooted, ordered, and labeled trees P and T the tree inclusion problem is to determine if P can be obtained from T by deleting nodes in T. This problem has recently been r...
Philip Bille, Inge Li Gørtz