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» Signed analogs of bipartite graphs
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DM
1998
82views more  DM 1998»
13 years 4 months ago
Signed analogs of bipartite graphs
We characterize the edge-signed graphs in which every 'significant' positive closed walk (or combination of walks) has even length, under seven different criteria for si...
Thomas Zaslavsky
SDM
2010
SIAM
213views Data Mining» more  SDM 2010»
13 years 6 months ago
Spectral Analysis of Signed Graphs for Clustering, Prediction and Visualization
We study the application of spectral clustering, prediction and visualization methods to graphs with negatively weighted edges. We show that several characteristic matrices of gra...
Jérôme Kunegis, Stephan Schmidt, Andr...
ASPDAC
2007
ACM
152views Hardware» more  ASPDAC 2007»
13 years 8 months ago
A Graph Reduction Approach to Symbolic Circuit Analysis
A new graph reduction approach to symbolic circuit analysis is developed in this paper. A Binary Decision Diagram (BDD) mechanism is formulated, together with a specially designed ...
Guoyong Shi, Weiwei Chen, C.-J. Richard Shi
ECAI
2008
Springer
13 years 6 months ago
Modeling Collaborative Similarity with the Signed Resistance Distance Kernel
We extend the resistance distance kernel to the domain of signed dissimilarity values, and show how it can be applied to collaborative rating prediction. The resistance distance is...
Jérôme Kunegis, Stephan Schmidt, Sahi...
ISAAC
2004
Springer
107views Algorithms» more  ISAAC 2004»
13 years 10 months ago
On the Hardness and Easiness of Random 4-SAT Formulas
Assuming 3-SAT formulas are hard to refute with high probability, Feige showed approximation hardness results, among others for the max bipartite clique. We extend this result in t...
Andreas Goerdt, André Lanka