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ISCI
2007
115views more  ISCI 2007»
14 years 9 months ago
Compressed histograms with arbitrary bucket layouts for selectivity estimation
Selectivity estimation is an important step of query optimization in a database management system, and multidimensional histogram techniques have proved promising for selectivity ...
Dennis Fuchs, Zhen He, Byung Suk Lee
CSL
2009
Springer
15 years 1 months ago
Fixed-Point Definability and Polynomial Time
My talk will be a survey of recent results about the quest for a logic capturing polynomial time. In a fundamental study of database query languages, Chandra and Harel [4] first ra...
Martin Grohe
GEOINFORMATICA
2008
123views more  GEOINFORMATICA 2008»
14 years 9 months ago
Efficient Implementation Techniques for Topological Predicates on Complex Spatial Objects
Topological relationships like overlap, inside, meet, and disjoint uniquely characterize the relative position between objects in space. For a long time, they have been a focus of...
Reasey Praing, Markus Schneider
JDM
2008
112views more  JDM 2008»
14 years 9 months ago
Reverse Engineering from an XML Document into an Extended DTD Graph
The extensible markup language (XML) has become a standard for persistent storage and data interchange via the Internet due to its openness, self-descriptiveness, and flexibility....
Herbert Shiu, Joseph Fong
RECOMB
2005
Springer
15 years 3 months ago
An Interactive Map of Regulatory Networks of Pseudomonas aeruginosa Genome
For studying gene regulatory and protein signaling networks, we have developed an interactive map for the Pseudomonas aeruginosa genome. We first represent genes, proteins and the...
Weihui Wu, Yongling Song, Shouguang Jin, Su-Shing ...