Frequent Subgraph Discovery

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Frequent Subgraph Discovery (2001)

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by Michihiro Kuramochi , George Karypis

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406 - 10 self

BibTeX

@MISC{Kuramochi01frequentsubgraph,
    author = {Michihiro Kuramochi and George Karypis},
    title = {Frequent Subgraph Discovery},
    year = {2001}
}

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Abstract

Over the years, frequent itemset discovery algorithms have been used to solve various interesting problems. As data mining techniques are being increasingly applied to non-traditional domains, existing approaches for finding frequent itemsets cannot be used as they cannot model the requirement of these domains. An alternate way of modeling the objects in these data sets, is to use a graph to model the database objects. Within that model, the problem of finding frequent patterns becomes that of discovering subgraphs that occur frequently over the entire set of graphs. In this paper we present a computationally efficient algorithm for finding all frequent subgraphs in large graph databases. We evaluated the performance of the algorithm by experiments with synthetic datasets as well as a chemical compound dataset. The empirical results show that our algorithm scales linearly with the number of input transactions and it is able to discover frequent subgraphs from a set of graph transactions reasonably fast, even though we have to deal with computationally hard problems such as canonical labeling of graphs and subgraph isomorphism which are not necessary for traditional frequent itemset discovery.

Keyphrases

frequent subgraph discovery frequent subgraphs synthetic datasets input transaction graph transaction alternate way hard problem non-traditional domain efficient algorithm subgraph isomorphism frequent itemsets large graph database canonical labeling entire set data mining technique chemical compound dataset various interesting problem frequent pattern traditional frequent itemset discovery empirical result data set frequent itemset discovery algorithm

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