List of Articles Hadoop Open Access Article Abstract Page Full-Text 1 - Adaptive Dynamic Data Placement Algorithm for Hadoop in Heterogeneous Environments Avishan Sharafi Ali Rezaee Open Access Article Abstract Page Full-Text 2 - 2016 Olympic Games on Twitter: Sentiment Analysis of Sports Fans Tweets using Big Data Framework Azam Seilsepour Reza Ravanmehr Hamid Reza Sima Open Access Article Abstract Page Full-Text 3 - Implementation of Agglomerative Hierarchical Clustering Algorithm Applying the Map-Reduce Parallel Approach Fahimeh Tavakoli Faramarz Safi-Esfahani