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VLDB
2007
ACM
260views Database» more  VLDB 2007»
16 years 4 months ago
Approaching the Skyline in Z Order
Given a set of multidimensional data points, skyline query retrieves a set of data points that are not dominated by any other points. This query is useful for multi-preference ana...
Ken C. K. Lee, Baihua Zheng, Huajing Li, Wang-Chie...
ICIW
2007
IEEE
15 years 10 months ago
Context-aware Web Services for Distributed Retrieval of Points of Interest
Due to the widespread availability of accurate localization technologies, navigation systems are more and more present on mobile devices. These applications usually provide facili...
Claudio Bettini, Daniele Riboni
ASWC
2009
Springer
15 years 5 months ago
Merging and Ranking Answers in the Semantic Web: The Wisdom of Crowds
In this paper we propose algorithms for combining and ranking answers from distributed heterogeneous data sources in the context of a multi-ontology Question Answering task. Our pr...
Vanessa Lopez, Andriy Nikolov, Miriam Ferná...
GECCO
2008
Springer
144views Optimization» more  GECCO 2008»
15 years 5 months ago
Maintaining diversity through adaptive selection, crossover and mutation
This paper presents an Adaptive Genetic Algorithm (AGA) where selection pressure, crossover and mutation probabilities are adapted according to population diversity statistics. Th...
Brian McGinley, Fearghal Morgan, Colm O'Riordan
WWW
2008
ACM
16 years 5 months ago
Finding core members in virtual communities
Finding the core members of a virtual community is an important problem in community analysis. Here we presented an simulated annealing algorithm to solve this problem by optimizi...
Haiqiang Chen, Xueqi Cheng, Yue Liu