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In this article we present a 2D cellular automaton (Class_AC) to solve a problem of text mining in the case of unsupervised classification (clustering). Before to experiment the cellular automaton, we vectorized our data indexing textual documents from the database REUTERS 21,578 by the approach of N-grams. The cellular automaton that we propose in this paper is a grid cell structure with a flat neighborhood...
EMS service is an important operation in China Post and is growing fast in the past years. At the same time, there are tremendous competitions for EMS service, which requires China Post to improve on present service based on well knowing the characters of the service. In this study, different clustering models are built by using different clustering techniques of K-means algorithm and two-step method...
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