Title	Multicast Routing and Wavelength Assignation in Optical Networks with Ant Colony Optimization
Author	Diego Pinto, Benjam?n Bar?n, Marcos Villagra
Citation	Vol. 6  No. 4  pp. 62-70
Keywords	Routing, Wavelength Assignment, Multiobjective Optimization, Ant Colony Optimization.

Title	Maintaining Semantic Consistency in Real-Time Collaborative Graphics Editing Systems
Author	Jiajun Bu, Bo Jiang, Chun Chen
Citation	Vol. 6  No. 4  pp. 57-61
Keywords	CSCW, real-time collaborative graphics design, semantic preservation, semantic expression.

Title	Continuity Analysis of Non-uniform Subdivision Surfaces
Author	Ahsan Ullah, Koichi Harada
Citation	Vol. 6  No. 4  pp. 52-56
Keywords	surface optimization, subdivision scheme, graphics.

Title	Induction of Global Rules Considering Schema Conflicts in Multi-database Systems
Author	Yufu Song, Zengyou He, Xiaofei Xu, Shengchun Deng
Citation	Vol. 6  No. 4  pp. 48-51
Keywords	Rules, Semantic Query Optimization, Multi-database Systems