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PODS
2007
ACM
159views Database» more  PODS 2007»
14 years 8 months ago
Generalized hypertree decompositions: np-hardness and tractable variants
The generalized hypertree width GHW(H) of a hypergraph H is a measure of its cyclicity. Classes of conjunctive queries or constraint satisfaction problems whose associated hypergr...
Georg Gottlob, Thomas Schwentick, Zoltán Mi...
VLDB
2005
ACM
136views Database» more  VLDB 2005»
14 years 1 months ago
iMeMex: Escapes from the Personal Information Jungle
Modern computer work stations provide thousands of applications that store data in >100.000 files on the file system of the underlying OS. To handle these files data process...
Jens-Peter Dittrich, Marcos Antonio Vaz Salles, Do...
AIEDAM
2007
191views more  AIEDAM 2007»
13 years 8 months ago
Ontology-based design information extraction and retrieval
Because of the increasing complexity of products and the design process, as well as the popularity of computer-aided documentation tools, the number of electronic and textual desi...
Zhanjun Li, Karthik Ramani
ICDE
2009
IEEE
219views Database» more  ICDE 2009»
14 years 9 months ago
Distance Oracles for Spatial Networks
The popularity of location-based services and the need to do real-time processing on them has led to an interest in performing queries on transportation networks, such as finding s...
Jagan Sankaranarayanan, Hanan Samet
BMCBI
2008
135views more  BMCBI 2008»
13 years 8 months ago
Ab-origin: an enhanced tool to identify the sourcing gene segments in germline for rearranged antibodies
Background: In the adaptive immune system, variable regions of immunoglobulin (IG) are encoded by random recombination of variable (V), diversity (D), and joining (J) gene segment...
Xiaojing Wang, Di Wu, SiYuan Zheng, Jing Sun, Lin ...