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WebGIS has been applied for visualizing and sharing geospatial information popularly over the Internet. In order to improve the efficiency of the client applications, the web-based progressive vector transmission approach is proposed. Important features should be selected and transferred firstly, and the methods for measuring the importance of features should be further considered in the progressive...
Feature dimension reduction is an important part in text categorization, and it even becomes more important for child classification in hierarchical text classification. It is presented that Chinese text feature selection method based on category distinction and feature location information in this paper. Experimental results show that the proposed method has a higher precision and recall rate than...
In recent years, text categorization based on machine learning is a widely used technology in the field of natural language processing and text mining and has gained many advances. Feature selection is one of the key problems in text categorization. The chief obstacles to feature selection are noise and sparseness. In this paper, we propose an approach of Chinese text feature selection based on CV...
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