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http://dx.doi.org/10.9708/jksci.2012.17.3.121

A Study on Data Analysis Approach based on Granular Concept Hierarchies  

Kang, Yu-Kyung (Dept. of Computer Engineering, Sunmoon University)
Hwang, Suk-Hyung (Dept. of Computer Engineering, Sunmoon University)
Kim, Eung-Hee (Dept. of Computer Engineering, Sunmoon University)
Eom, Tae-Jung (Dept. of Computer Engineering, Sunmoon University)
Abstract
In this paper, we propose a novel data analysis approach that extracts granules suitable for various perspectives by introducing scaling level into formal concept analysis in order to control the level of granularity. Based on our approach, we can extract various granules from the given data set and constructs granular concept hierarchies based on the relations between the granules. Therefore, we can classify the given data with respect to the purpose or the intention of user's viewpoints. And, we developed G-Tool that supports our approach. In order to verify the usefulness of our proposed approach and G-Tool, we have done some experiments for real data set and reported about results of our experiments. From the experiments' results, we can verify our approach with G-Tool can be useful and suitable for classifying the given data with various scaling levels. The traditional formal concept analysis cannot control the level of granularity and can only classify for a particular perspective. However, our proposed approach can classify the given data with respect to user's purpose or intention by combining of diverse scale information and scaling levels.
Keywords
Granular Computing; Formal Concept Analysis; Conceptual Classification; Granular Concept Hierarchy;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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