Razor: Mining distance-constrained embedded subtrees
|dc.contributor.author||Dillon, Tharam S.|
|dc.identifier.citation||Tan, Henry and Dillon, Tharam and Hadzic, Fedja and Chang, Elizabeth. 2006. : Razor: Mining distance-constrained embedded subtrees, in Tsumota, Shusaku (ed), IEEE International Conference on Data Mining Workshops, Dec 18 2006, pp. 8-13. Hong Kong: IEEE.|
Our work is focused on the task of mining frequent subtrees from a database of rooted ordered labelled subtrees. Previously we have developed an efficient algorithm, MB3 , for mining frequent embedded subtrees from a database of rooted labeled and ordered subtrees. The efficiency comes from the utilization of a novel Embedding List representation for Tree Model Guided (TMG) candidate generation. As an extension the IMB3  algorithm introduces the Level of Embedding constraint. In this study we extend our past work by developing an algorithm, Razor, for mining embedded subtrees where the distance of nodes relative to the root of the subtree needs to be considered. This notion of distance constrained embedded tree mining will have important applications in web information systems, conceptual model analysis and more sophisticated ontology matching. Domains representing their knowledge in a tree structured form may require this additional distance information as it commonly indicates the amount of specific knowledge stored about a particular concept within the hierarchy. The structure based approaches for schema matching commonly take the distance among the concept nodes within a sub-structure into account when evaluating the concept similarity across different schemas. We present an encoding strategy to efficiently enumerate candidate subtrees taking the distance of nodes relative to the root of the subtree into account. The algorithm is applied to both synthetic and real-world datasets, and the experimental results demonstrate the correctness and effectiveness of the proposed technique.
|dc.subject||mining with constraints|
|dc.subject||frequent subtree mining|
|dc.title||Razor: Mining distance-constrained embedded subtrees|
|dcterms.source.title||Proceedings of the Sixth IEEE International Conference on Data Mining - Workshops|
|dcterms.source.series||Proceedings of the Sixth IEEE International Conference on Data Mining - Workshops|
|dcterms.source.conference||IEEE International Conference on Data Mining Workshops|
|dcterms.source.conference-start-date||Dec 18 2006|
Copyright 2006 IEEE
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|curtin.department||Centre for Extended Enterprises and Business Intelligence|
|curtin.faculty||Curtin Business School|