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ALGORITHMICA
2010
112views more  ALGORITHMICA 2010»
13 years 7 months ago
Approximation Algorithms for Treewidth
Abstract. This paper presents algorithms whose input is an undirected graph, and whose output is a tree decomposition of width that approximates the optimal, the treewidth of that ...
Eyal Amir
PKDD
2010
Springer
150views Data Mining» more  PKDD 2010»
13 years 5 months ago
Virus Propagation on Time-Varying Networks: Theory and Immunization Algorithms
Given a contact network that changes over time (say, day vs night connectivity), and the SIS (susceptible/infected/susceptible, flu like) virus propagation model, what can we say ...
B. Aditya Prakash, Hanghang Tong, Nicholas Valler,...
DAM
2008
109views more  DAM 2008»
13 years 7 months ago
Minimal comparability completions of arbitrary graphs
A transitive orientation of an undirected graph is an assignment of directions to its edges so that these directed edges represent a transitive relation between the vertices of th...
Pinar Heggernes, Federico Mancini, Charis Papadopo...
CORR
2007
Springer
167views Education» more  CORR 2007»
13 years 7 months ago
Approximation Algorithms for Orienteering with Time Windows
Orienteering is the following optimization problem: given an edge-weighted graph (directed or undirected), two nodes s, t and a time limit T, find an s-t walk of total length at ...
Chandra Chekuri, Nitish Korula
CGF
2010
204views more  CGF 2010»
13 years 7 months ago
Automatic Animation for Time-Varying Data Visualization
This paper presents a digital storytelling approach that generates automatic animations for time-varying data visualization. Our approach simulates the composition and transition ...
Li Yu, Aidong Lu, William Ribarsky, Wei Chen