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MCPR2
2011
104views more  MCPR2 2011»
13 years 3 months ago
People Detection Using Color and Depth Images
We present a strategy that combines color and depth images to detect people in indoor environments. Similarity of image appearance and closeness in 3D position over time yield weig...
Joaquín Salas, Carlo Tomasi
IPMI
2011
Springer
13 years 3 months ago
Fast Brain Matching with Spectral Correspondence
Abstract. Brain matching is an important problem in neuroimaging studies. Current surface-based methods for cortex matching and atlasing, although quite accurate, can require long ...
Herve Lombaert, Leo Grady, Jonathan R. Polimeni, F...
EJC
2011
13 years 4 months ago
A Tutte-style proof of Brylawski's tensor product formula
We provide a new proof of Brylawski’s formula for the Tutte polynomial of the tensor product of two matroids. Our proof involves extending Tutte’s formula, expressing the Tutte...
Yuanan Diao, Gábor Hetyei, Kenneth Hinson
FOCS
2010
IEEE
13 years 10 months ago
Subcubic Equivalences between Path, Matrix and Triangle Problems
We say an algorithm on n
Virginia Vassilevska Williams, Ryan Williams
CORR
2007
Springer
69views Education» more  CORR 2007»
14 years 12 days ago
Lossless Representation of Graphs using Distributions
We consider complete graphs with edge weights and/or node weights taking values in some set. In the first part of this paper, we show that a large number of graphs are completely...
Mireille Boutin, Gregor Kemper
CORR
2010
Springer
131views Education» more  CORR 2010»
14 years 16 days ago
A PAC-Bayesian Analysis of Graph Clustering and Pairwise Clustering
We formulate weighted graph clustering as a prediction problem1 : given a subset of edge weights we analyze the ability of graph clustering to predict the remaining edge weights. ...
Yevgeny Seldin
CGF
2008
110views more  CGF 2008»
14 years 16 days ago
TimeRadarTrees: Visualizing Dynamic Compound Digraphs
The evolution of dependencies in information hierarchies can be modeled by sequences of compound digraphs with edge weights. In this paper we present a novel approach to visualize...
Michael Burch, Stephan Diehl
IJCAI
2003
14 years 1 months ago
Continuous nonlinear dimensionality reduction by kernel Eigenmaps
We equate nonlinear dimensionality reduction (NLDR) to graph embedding with side information about the vertices, and derive a solution to either problem in the form of a kernel-ba...
Matthew Brand
SWAT
2000
Springer
114views Algorithms» more  SWAT 2000»
14 years 4 months ago
Maintaining Center and Median in Dynamic Trees
Abstract. We show how to maintain centers and medians for a collection of dynamic trees where edges may be inserted and deleted and node and edge weights may be changed. All update...
Stephen Alstrup, Jacob Holm, Mikkel Thorup
DNA
2006
Springer
126views Bioinformatics» more  DNA 2006»
14 years 4 months ago
On the Complexity of Graph Self-assembly in Accretive Systems
We study the complexity of the Accretive Graph Assembly Problem (AGAP). An instance of AGAP consists of an edge-weighted graph G, a seed vertex in G, and a temperature . The goal i...
Stanislav Angelov, Sanjeev Khanna, Mirkó Vi...