Title	Face emotion recognition system based on fuzzy logic using algorithm improved Particle Swarm
Author	Seyed mostafa sharifi, Marjan abdeyazdan
Citation	Vol. 16  No. 7  pp. 157-166
Keywords	Emotion face recognition system, Fuzzy inference system, Particle swarm optimization (PSO), Ant colony optimization real (ACOR), Genetic Algorithm (GA), Simulated annealing (SA).

Title	A Novel Cluster-based Key Management Scheme to Improve Scalability in Wireless Sensor Networks
Author	Seyed Reza Nabavi, Seyed Morteza Mousavi
Citation	Vol. 16  No. 7  pp. 150-156
Keywords	Security, Clustering, Key Management, Wireless Sensor Networks

Title	Pathology and Prediction of Performance of Virtual Students by Using Regression Techniques
Author	Hossein Fathi, Reza Samizadeh
Citation	Vol. 16  No. 7  pp. 142-149
Keywords	E-Learning, Distance Learning, Academic Performance, Data Mining Techniques, Regression, Neural network

Title	A New Testability Transformation Method for Programs with Assertions
Author	Ali M. Alakeel
Citation	Vol. 16  No. 7  pp. 137-141
Keywords	Assertion-based software testing. testability transformation. software testing. data dependency analysis