Document Type

Article

Publication Date

8-2010

Abstract

This article addresses the incremental and decremental maintenance of the frequent pattern space. We conduct an in-depth investigation on how the frequent pattern space evolves under both incremental and decremental updates. Based on the evolution analysis, a new data structure, Generator-Enumeration Tree (GE-tree), is developed to facilitate the maintenance of the frequent pattern space. With the concept of GE-tree, we propose two novel algorithms, Pattern Space Maintainer+ (PSM+) and Pattern Space Maintainer− (PSM−), for the incremental and decremental maintenance of frequent patterns. Experimental results demonstrate that the proposed algorithms, on average, outperform the representative state-of-the-art methods by an order of magnitude.

Comments

Attached is the unpublished, peer-reviewed authors' version. The final, publisher's version of the article can be found at http://dx.doi.org/10.1111/j.1467-8640.2010.00360.x.

DOI

10.1111/j.1467-8640.2010.00360.x


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