Title	Robust Rule-Based Method for Human Activity Recognition
Author	Masafumi Sugimoto, Thi Thi Zin, Takashi Toriu, Shigeyoshi Nakajima
Citation	Vol. 11  No. 4  pp. 37-43
Keywords	Human activity, rule-based, motion parameter, appearance parameter

Title	A Novel Authenticated Digital Watermarking in Mobile Ad-hoc Networks Using ns-2 Simulator
Author	Mehemed Bashir Aliwa, Tark El-Ahmady El-Tobely, Mahmood M. Fahmy, Mohamed EL Said Nasr, Mohamed Hashem Abd El-Aziz
Citation	Vol. 11  No. 4  pp. 44-55
Keywords	Mobile ad-hoc network, digital watermarking, routing protocol, attacker, ns-2 simulator and performance metrics

Title	A Modified Histogram Approach to Trademark Image Retrieval
Author	Tatsuaki Iwanaga, Hiromitsu Hama, Takashi Toriu, Pyke Tin, Thi Thi Zin
Citation	Vol. 11  No. 4  pp. 56-62
Keywords	Histogram approach, trademark, image retrieval, histogram intersection

Title	A note on estimation of states in HMM with unknown parameters
Author	Yasunari Maeda, Fumito Masui, Masakiyo Suzuki
Citation	Vol. 11  No. 4  pp. 63-67
Keywords	estimation of states, Hidden Markov Model, statistical decision theory, error rate