On efficiently summarizing categorical databases

13 years 4 months ago
On efficiently summarizing categorical databases
Frequent itemset mining was initially proposed and has been studied extensively in the context of association rule mining. In recent years, several studies have also extended its application to transaction or document clustering. However, most of the frequent itemset based clustering algorithms need to first mine a large intermediate set of frequent itemsets in order to identify a subset of the most promising ones that can be used for clustering. In this paper, we study how to directly find a subset of high quality frequent itemsets that can be used as a concise summary of the transaction database and to cluster the categorical data. By exploring key properties of the subset of itemsets that we are interested in, we proposed several search space pruning methods and designed an efficient algorithm called SUMMARY. Our empirical results show that SUMMARY runs very fast even when the minimum support is extremely low and scales very well with respect to the database size, and surprisingly, ...
Jianyong Wang, George Karypis
Added 13 Dec 2010
Updated 13 Dec 2010
Type Journal
Year 2006
Where KAIS
Authors Jianyong Wang, George Karypis
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