"Virtual Roommates: Sampling and Reconstructing Presence in Multiple Shared Spaces", Handbook of Augmented Reality, 1, 211-230, Springer

"Pattern Recognition and Biometric Fusion", Pattern Recognition, Machine Intelligence and Biometrics (PRMIB), in memory of late Prof. King-Sun Fu, 657-674, Springer

"Adaptive Computation Paradigm in Knowledge Representation: Traditional and Emerging Applications", Software Applications: Concepts, Methodologies, Tools, and Applications, 3258-3271, IGI global

"Density-Based Clustering Based on Topological Properties of the Data Set", Generalized Voronoi Diagram: A Geometry-Based Approach to Computational Intelligence, 1(158), 197-214, Springer

"A Robust Authentication System using Multiple Biometrics", Computer and Information Science, Series in Studies in Computational Intelligence, Lee, R., Kim, H.-K. (Eds.), 1(131), 189-201, Springer

"Adaptive Algorithms for Intelligent Geometric Computing", Encyclopedia of Artificial Intelligence, 8-15, IGI Global

"Computational Geometry and Image Processing in Biometrics: on the Path to Convergence", Image Pattern Recognition: Synthesis and Analysis in Biometrics, 1(67), 103-133, World Scientific