Title	Node Placement Optimization Techniques in Multihop Lightwave Based de Bruijn Graph Network
Author	Tarun Kumar Ghosh, Debi Bera
Citation	Vol. 10  No. 7  pp. 262-270
Keywords	Lightwave networks, node placement problem, multihop, de Bruijn graph, optimized structures

Title	Constraint-free Optimal Dual Similarity Validity Clusters Using Dynamic Minimum Spanning Tree
Author	S. John Peter, S.P. Victor
Citation	Vol. 10  No. 7  pp. 253-261
Keywords	Euclidean minimum spanning tree, Clustering, Eccentricity, Center, Hierarchical clustering, Dendrogram, Subtree, Cluster validity, Cluster Separation

Title	Optimal Progressive Image Transmission Over Rayleigh Fading Channels
Author	Ahmad Hatam, Ali M. Doost-Hoseini
Citation	Vol. 10  No. 7  pp. 245-252
Keywords	Joint source channel coding, Markov model, Rayleigh fading channel, Rate allocation

Title	Adaptive E-learning using Genetic Algorithms
Author	Samia Azough, Mostafa Bellafkih, El Houssine Bouyakhf
Citation	Vol. 10  No. 7  pp. 237-244
Keywords	Adaptive e-learning, Genetic algorithms, LOM standard, Resources Modelization