Proceedings of the Annual Conference of the Institute of Systems, Control and Information Engineers
The 51st Annual Conference of the Institute of Systems, Control and Information Engineers
Session ID : 4F1-2
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Host: The Institute of Systems, Control and Information Engineers

A Trend Analysis Method by OLAP based on Frequency and Freshness
*Masahiro Terachi, Ryosuke Saga, Hiroshi Tsuji
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Keywords: OLAP, database, text mining
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Abstract
To visualize trends in volumes of articles, we propose an analytical method based on OLAP(On-Line Analytical Processing). Defining keywords, article's category, frequency, and apparition as dimension, we present how to construct multidimentional database. Using operation peculiar to OLAP, such as Dicing, Slicing and Drill down&up, we enabled visualization of trend for topics in those articles.
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© 2007 The Institute of Systems, Control and Information Engineers
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