Title	A Feature Selection Methods Based on Concept Extraction and SOM Text Clustering Analysis
Author	Lin Wang, Minghu Jiang, Shasha Liao, Yinghua Lu
Citation	Vol. 6  No. 1  pp. 20~28
Keywords	Concept Attributes, Self-Organizing Map, Clustering, Text Classification

Title	Spectral Characteristics of Vocal Tract for Speaker Recognition
Author	Milan Sigmund
Citation	Vol. 6  No. 1  pp. 17~19
Keywords	Speaker recognition, individual spectral characteristics

Title	A FCM Clustering Algorithm Based on Multiple Attribute Information with Linguistic Assessment
Author	YU Chun-hai, FAN Zhi-ping, SUN Xin-bo
Citation	Vol. 6  No. 1  pp. 13~16
Keywords	FCM clustering algorithm, Fuzzy clustering analysis, Linguistic assessment information, Two-tuple

Title	Dual Space Drawing Methods for Ruled Surfaces with Particular Shapes
Author	Rena Ding, Yan Zhang
Citation	Vol. 6  No. 1  pp. 1~12
Keywords	dual space, de Casteljau algorithm, ruled surface, Bezier surface