Wenyan Bao

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Encoding can express the hierarchical relationship in the area of mining the multi-level sequential pattern, up to now all the algorithms of which find frequent sequences just according to frequency, but items have different importance in the real applications, therefore the weight constraint involved to the entire mining process is crucial. The MWSP(More)
In Collaborative Information Retrieval, we construct formal concept lattices for a number of sub-text databases by the incremental update algorithms for generating the lattices algorithm. Then, respectively, we obtained the new formal concepts by merging the temporary formal concepts which are from the different lattices by measuring similarity between(More)
With the development of information technology and the increasing amount of data, the way of storing data in single table can not meet the actual needs, it will highlight the importance of the research on multi-relational sequence mining. This paper presents a multi-relational sequence pattern mining algorithm using the variant prefix tree, and the frequent(More)
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