Title	Image Contrast Enhancement based Combined Techniques without Over-enhanced Noise
Author	I.A.Humied, F.E.Z.Abou-Chadi, M.Z.Rashad
Citation	Vol. 13  No. 7  pp. 113-120
Keywords	Contrast Enhancement, Histogram Equalization, Fast Gray-Level Grouping, Equalization Noisy Images.

Title	Image Retrieval: History, Current Approaches, and Promising Framework
Author	Sayed Omid Azarkasb
Citation	Vol. 13  No. 7  pp. 121-129
Keywords	Image retrieval, GIFT, Schema, MUVIS

Title	Evaluation of a Text Document Clustering Approach based on Particle Swarm Optimization
Author	Stuti Karol, Veenu Mangat
Citation	Vol. 13  No. 7  pp. 130-143
Keywords	Clustering analysis, Optimization, Swarm Intelligence, K-Means Clustering, Fuzzy C-Means Clustering, Particle Swarm Optimization, Text Document Clustering

Title	Performance Analysis of WiMAX under Single and Multi-Carrier Jamming
Author	Gurkamal Singh, Maninder Singh
Citation	Vol. 13  No. 7  pp. 144-148
Keywords	WiMAX, Jamming, Network Security, Wireless Communication, Single Carrier Jamming, Multi-Carrier Jamming