Title	A Novel Watermark Algorithm for Integrity Protection of XML Documents
Author	Ronghua Yao, Qijun Zhao, Hongtao Lu
Citation	Vol. 6  No. 2  pp. 202~207
Keywords	Extensible Markup Language (XML), Integrity Protection, Watermark, Signature, Principal Component Analysis (PCA)

Title	Ridgelet-Based Robust and Perceptual Watermarking for Images
Author	Xiao Liang, Wei Zhihui, Wu Huizhong
Citation	Vol. 6  No. 2  pp. 194~201
Keywords	Information security, digital watermark, ridgelet transform, perceptual embedding, blindly detection

Title	Secret Image Sharing Using Pseudo-Random Sequence
Author	Anil Kumar, Navin Rajpal
Citation	Vol. 6  No. 2  pp. 185~193
Keywords	Steganography, Cryptography, Secret sharing, and Pseudo ?Random Sequence

Title	Real-time statistical rules for spam detection
Author	Quang-Anh Tran, Haixin Duan, Xing Li
Citation	Vol. 6  No. 2  pp. 178~184
Keywords	statistical rule-based, spam, detection, Chinese