Razor: Mining distance-constrained embedded subtrees

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 [12], for mining frequent embedded subtrees from a database of rooted labeled and ordered subtrees. The efficiency comes from the...

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Main Authors: Tan, H., Dillon, Tharam S., Hadzic, Fedja, Chang, Elizabeth
Format: Conference Paper
Published: IEEE 2006
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/5006
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author Tan, H.
Dillon, Tharam S.
Hadzic, Fedja
Chang, Elizabeth
author_facet Tan, H.
Dillon, Tharam S.
Hadzic, Fedja
Chang, Elizabeth
author_sort Tan, H.
building Curtin Institutional Repository
collection Online Access
description 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 [12], 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 [13] 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.
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spelling curtin-20.500.11937-50062017-01-30T10:43:12Z Razor: Mining distance-constrained embedded subtrees Tan, H. Dillon, Tharam S. Hadzic, Fedja Chang, Elizabeth embedded subtree structure matching mining with constraints frequent subtree mining association mining 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 [12], 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 [13] 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. 2006 Conference Paper http://hdl.handle.net/20.500.11937/5006 IEEE fulltext
spellingShingle embedded subtree
structure matching
mining with constraints
frequent subtree mining
association mining
Tan, H.
Dillon, Tharam S.
Hadzic, Fedja
Chang, Elizabeth
Razor: Mining distance-constrained embedded subtrees
title Razor: Mining distance-constrained embedded subtrees
title_full Razor: Mining distance-constrained embedded subtrees
title_fullStr Razor: Mining distance-constrained embedded subtrees
title_full_unstemmed Razor: Mining distance-constrained embedded subtrees
title_short Razor: Mining distance-constrained embedded subtrees
title_sort razor: mining distance-constrained embedded subtrees
topic embedded subtree
structure matching
mining with constraints
frequent subtree mining
association mining
url http://hdl.handle.net/20.500.11937/5006