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» A Structured Set of Higher-Order Problems
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ISAAC
2010
Springer
272views Algorithms» more  ISAAC 2010»
15 years 1 months ago
Neighbor Systems, Jump Systems, and Bisubmodular Polyhedra
The concept of neighbor system, introduced by Hartvigsen (2009), is a set of integral vectors satisfying a certain combinatorial property. In this paper, we reveal the relationship...
Akiyoshi Shioura
SIGKDD
2010
111views more  SIGKDD 2010»
14 years 10 months ago
Unexpected results in automatic list extraction on the web
The discovery and extraction of general lists on the Web continues to be an important problem facing the Web mining community. There have been numerous studies that claim to autom...
Tim Weninger, Fabio Fumarola, Rick Barber, Jiawei ...
124
Voted
DEXAW
2009
IEEE
173views Database» more  DEXAW 2009»
15 years 10 months ago
Automatic Cluster Number Selection Using a Split and Merge K-Means Approach
Abstract—The k-means method is a simple and fast clustering technique that exhibits the problem of specifying the optimal number of clusters preliminarily. We address the problem...
Markus Muhr, Michael Granitzer
144
Voted
PODS
2002
ACM
167views Database» more  PODS 2002»
16 years 4 months ago
OLAP Dimension Constraints
In multidimensional data models intended for online analytic processing (OLAP), data are viewed as points in a multidimensional space. Each dimension has structure, described by a...
Carlos A. Hurtado, Alberto O. Mendelzon
GECCO
2010
Springer
248views Optimization» more  GECCO 2010»
15 years 7 months ago
Integrating decision space diversity into hypervolume-based multiobjective search
Multiobjective optimization in general aims at learning about the problem at hand. Usually the focus lies on objective space properties such as the front shape and the distributio...
Tamara Ulrich, Johannes Bader, Eckart Zitzler