An Effective Term-ranking Function for Query Expansion Based on Information Foraging Assessment -- Using Multi-armed Bandit to Solve Cold-start Problems in Recommender Systems at Telco -- An Improved Collaborative Filtering Model Based on Rough Set -- Learning to Rank for Personalized Fashion Recommender Systems via Implicit Feedback -- Convergence Problem in GMM related Robot Learning from Demonstration: Hybridization of Ensemble Kalman Filter and Non-linear Auto-regressive Neural Network for Financial Forecasting -- Forecast of Traffic Accidents Based on Components Extraction and a Neural Network with Levenberg-Marquardt -- Top-k Parametrized Boost -- Unsupervised Feature Learning for Human Activity Recognition Using Smartphone Sensors -- Influence of Weak Labels for Emotion Recognition of Tweets -- Focused Information Retrieval & English Language Instruction: A New Text Complexity Algorithm for Automatic Text Classification.