Title	Nonrestrictive Concept-Acquisition by Representational Redescription
Author	Wei Hui, Yuan Liang
Citation	Vol. 6  No. 12  pp. 55-59
Keywords	Concept acquisition, Representational redescription, Knowledge representation

Title	Agent Simulation Based on Perceptual Balance
Author	Akira Notsu, Hidetomo Ichihashi, Katsuhiro Honda
Citation	Vol. 6  No. 12  pp. 50-54
Keywords	Agent-based simulation, Communication networks, Emergence system and Perceptual Balance

Title	Improving Systems Design Using a Clustering Approach
Author	Istv?n Gergely Czibula, Gabriela ?erban
Citation	Vol. 6  No. 12  pp. 40-49
Keywords	Software Engineering, Refactoring, System Design, Clustering.

Title	Improving Browsing Time Estimation with Intentional Browsing Data
Author	Yu-Hui Tao, Tzung-Pei Hong, Yu-Ming Su
Citation	Vol. 6  No. 12  pp. 35-39
Keywords	Web Usage Mining, Web Log Files Browsing Behavior, Browsing Time.