Digital Marketing -- Online Celebrities’ Endorsement and Consumers’ Adoption and Dissemination of Information -- What “Uses and Gratifications’ Theory can tell us about using Professional Networking Sites (e.g LinkedIn, Viadeo, Xing, SkilledAfricans, Plaxo…) -- Intention of Adoption of Mobile Commerce from Consumer Perspective -- Not Always a Co-Creation: Exploratory Study of Causes, Emotions and Practices of the Value Co-Destruction in Virtual Communities -- Empirical Study of Algerian Web Users’ Behavior. The case of Ouedkniss.com -- Capturing Leading Factors Contributing To Consumer Engagement In Online Co-Design Platform Of Olive Oil Packaging: A Focus Group Study And A Research Model Proposal -- Digital Economy and e-Learning -- Knowledge Transfer Through e-Learning: Case of Tunisian Post -- Modeling of a Collaborative Learning Process with Business Process Model Notation -- Intermediation and Decision Support System for the Management of Unemployment: the Simulator of Duration -- Online Project Management and PHP7 Application: a real case study -- Data Science and Security -- Data Stream Mining Based-Outlier Prediction for Cloud Computing -- Overlapping Community Detection for Social Networks -- New Overlap Measure for the Validation of Non-Disjoint Partitioning -- Uniformly Spread Embedding based Steganography -- Uncertainty in Web Data -- First steps towards an electronic meta-journal platform based on crowdsourcing -- Skyline Operator over Combined Reviews of Tripadvisor Travelers under the Belief Functions Theory -- An adaptive approach of label aggregation using a belief function framework -- Assessing Items Reliability for Collaborative Filtering within the Belief Function Framework.