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SIGIR
2005
ACM
15 years 5 months ago
Scalable collaborative filtering using cluster-based smoothing
Memory-based approaches for collaborative filtering identify the similarity between two users by comparing their ratings on a set of items. In the past, the memory-based approache...
Gui-Rong Xue, Chenxi Lin, Qiang Yang, Wensi Xi, Hu...
GECCO
2009
Springer
126views Optimization» more  GECCO 2009»
15 years 4 months ago
Improving NSGA-II with an adaptive mutation operator
The performance of a Multiobjective Evolutionary Algorithm (MOEA) is crucially dependent on the parameter setting of the operators. The most desired control of such parameters pre...
Arthur Gonçalves Carvalho, Aluizio F. R. Ar...
HYBRID
1994
Springer
15 years 3 months ago
Symbolic Controller Synthesis for Discrete and Timed Systems
This paper presents algorithms for the symbolic synthesis of discrete and real-time controllers. At the semantic level the controller is synthesized by nding a winning strategy for...
Eugene Asarin, Oded Maler, Amir Pnueli
ICDE
2007
IEEE
126views Database» more  ICDE 2007»
16 years 1 months ago
Organizing Hidden-Web Databases by Clustering Visible Web Documents
In this paper we address the problem of organizing hidden-Web databases. Given a heterogeneous set of Web forms that serve as entry points to hidden-Web databases, our goal is to ...
Luciano Barbosa, Juliana Freire, Altigran Soares d...
CIKM
2009
Springer
15 years 6 months ago
Compressing tags to find interesting media groups
On photo sharing websites like Flickr and Zooomr, users are offered the possibility to assign tags to their uploaded pictures. Using these tags to find interesting groups of sem...
Matthijs van Leeuwen, Francesco Bonchi, Börku...