Detection of chain structures embedded in multidimensional symbolic data

Authors:
Atsushi Nagoya;Yujiro Ono;Manabu Ichino
Affiliations:
Tokyo Denki University, Department of Information and Arts, Ishizaka, Hatoyama, Saitama 350-0394, Japan;Jumonji University, Department of Social Information Sciences, 2-1-28, Sugasawa, Niiza, Saitama 352-8510, Japan;Tokyo Denki University, Department of Information and Arts, Ishizaka, Hatoyama, Saitama 350-0394, Japan
Venue:
Pattern Recognition Letters
Year:
2009

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Abstract

The detection of meaningful geometrical structures in multidimensional data is of major interest in data analysis and data mining. In this paper, we will first present the notion of a locally monotonic chain structure based on the Cartesian system model (CSM) which is the mathematical model to manipulate symbolic data. The locally monotonic chain structures include not only monotonic chain structures but also various complex structures organized by several monotonic chains. Then, secondly, we will describe a method to detect the locally monotonic chain structures of objects embedded in multidimensional symbolic data. We will illustrate the usefulness of our method by using both several artificially generated data sets and a real data set.