The 19 selected papers presented were carefully revised and report from the four workshops: computational social networks, IWCSN 2014, enterprise social networks, Org2 2014, personalization and context-awareness in cloud and service computing, PCS 2014, and data quality and trust in big data, QUAT 2014.

Semi-supervised Learning Algorithm for Binary Relevance Multilabel Classification.- On the Information Diffusion between Web-based Social Networks.- Generic Private Social Network for Knowledge Management.- Analysis of Event Logs: Behavioral Graphs.- Delineating Worker-Centered Organizational Work: Blending BPMS and Social Software Features.- Compliance of the LinkedIn Privacy Policy with the Principles of the ISO 29100:2011 Standard.- The Use of Social Tagging in Social Business Process Management SocIoS API: A Data Aggregator for Accessing User Generated Content from Online Social Networks.- Integrating Social Media and Open Data in a Cloud-based Platform for Public Sector Advertising.- A Survey on Approaches to Modeling Artifact-centric Business Processes.- A Connectivity-Based Recommendation Approach for Data Service Mashups.- Using Incentives to Analyze Social Web Services Behaviors Creating and Modelling Personal Socio-Economic Networks in On-Line Banking.- Cloud-based Video Monitoring Framework: An Approach based on Software-Defined Networking for Addressing Scalability Problems.- Context-awareness in Task Automation Services by Distributed Event Processing.- Data Streams Quality Evaluation for the Generation of Alarms in Health Domain.- Multilayer and Multi-agent Data Fusion in WSN.- Strategies for Data Quality Monitoring in Business Processes Quality Improvement Framework for Business Oriented Geo-Spatial Data.