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View Code? Open in Web Editor NEWSummarization of static graphs using the Minimum Description Length principle
Home Page: http://www.cs.cmu.edu/~dkoutra/papers/VoG.pdf
License: Other
Summarization of static graphs using the Minimum Description Length principle
Home Page: http://www.cs.cmu.edu/~dkoutra/papers/VoG.pdf
License: Other
Version 1.3 Code for VoG: Summarizing and Understanding Large Graphs Danai Koutra, U Kang, Jilles Vreeken, and Christos Faloutsos http://www.cs.cmu.edu/~dkoutra/papers/VoG.pdf Contact: Danai Koutra, [email protected] To run: type 'make' Difference from Version 1.0: Using dynamic programming and the technique of memoization to speed up the application of the GREEDY'nFORGET heuristic. Algorithm: Input: graph G Step 1: Subgraph Generation. Generate candidate – possibly overlapping – subgraphs using one or more graph decomposition methods. Step 2: Subgraph Labeling. Characterize each subgraph as a perfect structure x \in Omega, or an approximate structure by using MDL to find the type x that locally minimizes the encoding cost. Populate the candidate set C. Step 3: Summary Assembly. Use the heuristics PLAIN, TOP10, TOP100, GREEDY’NFORGET (Sec. 4.3) to select a non-redundant subset from the candidate structures to instantiate the graph model M. Pick the model of the heuristic with the lowest description cost. Return graph summary M and its encoding cost. Change Log: =========== July 1, 2015 - removed vpi(): using l2cnk.m to compute the log of n-choose-k efficiently leads to 30x speedup in the chocolate-wiki dataset - tic/toc instead of cputime to compute the runtime: following the recommendation at http://www.mathworks.com/help/matlab/ref/cputime.html January 9, 2015 - Replaced the config.py file July 30, 2014 - Fixed ordering of nodes in cliques June 15, 2014 - Made the greedyNforget 100x faster by exploiting memoization
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