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» Consistency Management in Object-Oriented Databases
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GIS
2008
ACM
14 years 9 months ago
Mining user similarity based on location history
The pervasiveness of location-acquisition technologies (GPS, GSM networks, etc.) enable people to conveniently log the location histories they visited with spatio-temporal data. T...
Quannan Li, Yu Zheng, Xing Xie, Yukun Chen, Wenyu ...
KDD
2001
ACM
142views Data Mining» more  KDD 2001»
14 years 9 months ago
TreeDT: gene mapping by tree disequilibrium test
We introduce and evaluate TreeDT, a novel gene mapping method which is based on discovering and assessing tree-like patterns in genetic marker data. Gene mapping aims at discoveri...
Petteri Sevon, Hannu Toivonen, Vesa Ollikainen
PODS
2006
ACM
88views Database» more  PODS 2006»
14 years 8 months ago
Structural characterizations of the semantics of XPath as navigation tool on a document
Given a document D in the form of an unordered labeled tree, we study the expressibility on D of various fragments of XPath, the core navigational language on XML documents. We gi...
Marc Gyssens, Jan Paredaens, Dirk Van Gucht, Georg...
CIKM
2005
Springer
14 years 2 months ago
Towards estimating the number of distinct value combinations for a set of attributes
Accurately and efficiently estimating the number of distinct values for some attribute(s) or sets of attributes in a data set is of critical importance to many database operation...
Xiaohui Yu, Calisto Zuzarte, Kenneth C. Sevcik
GIS
2008
ACM
13 years 9 months ago
Automatic extraction of road intersection position, connectivity, and orientations from raster maps
The road network is one of the most important types of information on raster maps. In particular, the set of road intersection templates, which consists of the road intersection p...
Yao-Yi Chiang, Craig A. Knoblock