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ISCI
1998
139views more  ISCI 1998»
13 years 10 months ago
A Rough Set Approach to Attribute Generalization in Data Mining
This paper presents a method for updating approximations of a concept incrementally. The results can be used to implement a quasi-incremental algorithm for learning classification...
Chien-Chung Chan
TPHOL
2009
IEEE
14 years 5 months ago
Formalising FinFuns - Generating Code for Functions as Data from Isabelle/HOL
Abstract. FinFuns are total functions that are constant except for a finite set of points, i.e. a generalisation of finite maps. We formalise them in Isabelle/HOL and present how...
Andreas Lochbihler
ER
2001
Springer
130views Database» more  ER 2001»
14 years 3 months ago
NF-SS: A Normal Form for Semistructured Schema
Semistructured data is becoming increasingly important for web applications with the development of XML and related technologies. Designing a “good” semistructured database is ...
Xiaoying Wu, Tok Wang Ling, Sin Yeung Lee, Mong-Li...
GIS
2008
ACM
13 years 11 months ago
Snapshot location-based query processing on moving objects in road networks
Location-based services are increasingly popular and it is a key challenge to efficiently support query processing. We present a novel design to process large numbers of location...
Haojun Wang, Roger Zimmermann
COMPGEOM
2011
ACM
13 years 2 months ago
Three problems about dynamic convex hulls
We present three results related to dynamic convex hulls: • A fully dynamic data structure for maintaining a set of n points in the plane so that we can find the edges of the c...
Timothy M. Chan