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» Characterizing zero-derivative points
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CG
2002
Springer
14 years 11 months ago
Topology tracking for the visualization of time-dependent two-dimensional flows
The paper presents a topology-based visualization method for time-dependent two-dimensional vector elds. A time interpolation enables the accurate tracking of critical points and ...
Xavier Tricoche, Thomas Wischgoll, Gerik Scheuerma...
JUCS
2002
81views more  JUCS 2002»
14 years 11 months ago
Rationally Additive Semirings
Abstract: We define rationally additive semirings that are a generalization of ()complete and (-)continuous semirings. We prove that every rationally additive semiring is an iterat...
Zoltán Ésik, Werner Kuich
ORDER
2011
14 years 6 months ago
Order Types of Convex Bodies
We prove a Hadwiger transversal type result, characterizing convex position on a family of non-crossing convex bodies in the plane. This theorem suggests a definition for the ord...
Alfredo Hubard, Luis Montejano, Emiliano Mora, And...
JMLR
2010
225views more  JMLR 2010»
14 years 6 months ago
Hartigan's Method: k-means Clustering without Voronoi
Hartigan's method for k-means clustering is the following greedy heuristic: select a point, and optimally reassign it. This paper develops two other formulations of the heuri...
Matus Telgarsky, Andrea Vattani
CEC
2011
IEEE
13 years 11 months ago
On universal search strategies for multi-criteria optimization using weighted sums
—We develop a stochastic local search algorithm for finding Pareto points for multi-criteria optimization problems. The algorithm alternates between different single-criterium o...
Julien Legriel, Scott Cotton, Oded Maler