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arXiv 1504.02255cs.AIcs.DB
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基于FCA和模式结构的复杂序列数据挖掘

On mining complex sequential data by means of FCA and pattern structures

LORIA (CNRS – Inria NGE – U. de Lorraine)(洛林大学、法国国家信息与自动化研究所、法国国家科学研究中心联合计算机研究实验室);Orange Labs(奥兰治实验室);National Research University Higher School of Economics(国立研究型高等经济学院)

Aleksey Buzmakov, Elias Egho, Nicolas Jay, Sergei O. Kuznetsov, Amedeo Napoli, Chedy Raïssi

摘要:

如今,数据集以非常复杂和异构的方式提供。挖掘这样的数据汇集对于支持从医疗保健到市场营销的许多现实世界的应用是必不可少的。在这项工作中,我们专注于“复杂”的顺序数据的分析,通过有趣的顺序模式。我们使用优雅的数学框架的形式概念分析(FCA)及其扩展的基础上“模式结构”的问题。模式结构用于挖掘复杂数据(如序列或图),并基于包含操作,在我们的情况下,该操作是相对于序列的偏序定义的。我们展示了图案结构以及投影(即,顺序结构的数据简化)能够枚举更有意义的模式并提高该方法的计算效率。最后,我们展示了所提出的方法的适用性,发现和分析有趣的患者模式,从法国的医疗保健数据集癌症。在此用例中报告了定量和定性结果(带有医生的注释和分析),这是这项工作的主要动机。关键词:数据采掘;形式概念分析;模式结构;投影;序列;序列数据。

英文摘要:

Nowadays data sets are available in very complex and heterogeneous ways. Mining of such data collections is essential to support many real-world applications ranging from healthcare to marketing. In this work, we focus on the analysis of "complex" sequential data by means of interesting sequential patterns. We approach the problem using the elegant mathematical framework of Formal Concept Analysis (FCA) and its extension based on "pattern structures". Pattern structures are used for mining complex data (such as sequences or graphs) and are based on a subsumption operation, which in our case is defined with respect to the partial order on sequences. We show how pattern structures along with projections (i.e., a data reduction of sequential structures), are able to enumerate more meaningful patterns and increase the computing efficiency of the approach. Finally, we show the applicability of the presented method for discovering and analyzing interesting patient patterns from a French healthcare data set on cancer. The quantitative and qualitative results (with annotations and analysis from a physician) are reported in this use case which is the main motivation for this work. Keywords: data mining; formal concept analysis; pattern structures; projections; sequences; sequential data.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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