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ICIP
2009
IEEE
15 years 4 months ago
A hierarchical graph-based markovian clustering approach for the unsupervised segmentation of textured color images
In this paper, a new unsupervised hierarchical approach to textured color images segmentation is proposed. To this end, we have designed a two-step procedure based on a grey-scale...
Rachid Hedjam, Max Mignotte
STOC
2012
ACM
225views Algorithms» more  STOC 2012»
13 years 9 months ago
An algorithmic characterization of multi-dimensional mechanisms
We obtain a characterization of feasible, Bayesian, multi-item multi-bidder mechanisms with independent, additive bidders as distributions over hierarchical mechanisms. Combined w...
Yang Cai, Constantinos Daskalakis, S. Matthew Wein...
CCGRID
2006
IEEE
16 years 28 days ago
Optimal Replica Placement Strategy for Hierarchical Data Grid Systems
Grid computing is an important mechanism for utilizing distributed computing resources. These resources are distributed in different geographical locations, but are organized to p...
Pangfeng Liu, Jan-Jan Wu
IM
2007
15 years 6 months ago
Cluster Generation and Labeling for Web Snippets: A Fast, Accurate Hierarchical Solution
This paper describes Armil, a meta-search engine that groups the web snippets returned by auxiliary search engines into disjoint labeled clusters. The cluster labels generated by A...
Filippo Geraci, Marco Pellegrini, Marco Maggini, F...
INFOVIS
2005
IEEE
16 years 13 days ago
Voronoi Treemaps
Treemaps are a well-known method for the visualization of attributed hierarchical data. Previously proposed Treemap layout algorithms are limited to rectangular shapes, which caus...
Michael Balzer, Oliver Deussen