List of Articles Open Access Article Abstract Page Full-Text 1 - Detection of Blood Vessels in Retina Images using Gray Level Grouping Method Majid Eskandari Shahraki Mehran Emadi Open Access Article Abstract Page Full-Text 2 - Recommender System Based On Collaborative Filtering Using Polarity Improvement in Sentiment Analysis Alaleh Hosseini Charyani Alireza Norouzi Open Access Article Abstract Page Full-Text 3 - Analysis, Simulation and Optimization of LVQ Neural Network Algorithm and Comparison with SOM Saeed Talati Mohammadreza Hassani Ahangar Open Access Article Abstract Page Full-Text 4 - Human Face Detection in Color Images using Fusion of Ada Boost and LBP Feature Majid Emadi Mehran Emadi Open Access Article Abstract Page Full-Text 5 - Providing an Optimal Way to Increase the Security of Data Transfer using Watermarking in Digital Audio Signals Saeed Talati Pouriya Etezadifar Open Access Article Abstract Page Full-Text 6 - Quantization Watermarking in Three-Dimensional Wavelet Transform Domain Mohsen Ashourian