期刊
IEEE TRANSACTIONS ON CYBERNETICS
卷 51, 期 4, 页码 1902-1912出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCYB.2018.2887115
关键词
DBSCAN clustering; fuzzy C-means (FCMs); granular computing; granular data description; information granules
类别
资金
- Natural Sciences and Engineering Research Council [STPGP 462980-14]
This study proposes a development scheme for describing large numeric data by building a limited collection of representative information granules using clustering algorithms, with experimental results showing good performance.
The study is concerned with a description of large numeric data with the aid of building a limited collection of representative information granules with the objective of capturing the structure of the original data. The proposed development scheme consists of two steps. First, a clustering algorithm characterized by high flexibility of coping with the diverse geometry of data structure and efficient computational overhead is invoked. At the second step, a clustering algorithm applied to the clusters already formed during the first phase, yielding a collection of numeric prototypes is involved and the numeric prototypes produced there are then generalized into their granular prototypes. The quality of granular prototypes is quantified while their build-up is supported by the mechanisms of granular computing such as the principle of justifiable granularity. In this paper, the clustering algorithms of DBSCAN and fuzzy C-means were used in successive phases of the processed approach. The experimental studies concerning synthetic data and publicly available data are covered and the performance of the developed approach is assessed along with a comparative analysis.
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