InhaltsangabeA System for Web Widget Discovery Using Semantic Distance between User Intent and Social Tags.- An Automated Multiscale Map of Conversations: Mothers and Matters.- How Influential Are You: Detecting Influential Bloggers in a Blogging Community.- A Simulation Model Using Transaction Cost Economics to Analyze the Impact of Social Media on Online Shopping.- Predicting Group Evolution in the Social Network.- Interpolating between Random Walks and Shortest Paths: A Path Functional Approach.- Dynamic Targeting in an Online Social Medium.- Connecting with Active People Matters: The Influence of an Online Community on Physical Activity Behavior.- Detecting Overlapping Communities in Location-Based Social Networks.- CrowdLang: A Programming Language for the Systematic Exploration of Human Computation Systems.- Experiments in Cross-Lingual Sentiment Analysis in Discussion Forums.- Quality Assessment of User Comments on Mobile Platforms Considering Channel of Activation and Platform Design.- A Method Based on Congestion Game Theory for Determining Electoral Tendencies.- A Model to Represent Human Social Relationships in Social Network Graphs.- C4PS - Helping Facebookers Manage Their Privacy Settings.- Dynamic "Participative Rules" in Serious Games, New Ways for Evaluation?.- Mobile Phones, Family and Personal Relationships: The Case of Indonesian Micro-entrepreneurs.- An Analysis of Topical Proximity in the Twitter Social Graph.- A Foresight Support System to Manage Knowledge on Information Society Evolution.- How Many Answers Are Enough? Optimal Number of Answers for Q&A Sites.- Analysis and Support of Lifestyle via Emotions Using Social Media.- A Computational Analysis of Joint Decision Making Processes.- Collaboratively Constructing a VDL-Based Icon System for Knowledge Tagging.- A Multi-dimensional and Event-Based Model for Trust Computation in the Social Web.- On Recommending Hashtags in Twitter Networks.- A Framework for the Design and Synthesis of Coordinated Social Systems.- Swayed by Friends or by the Crowd?.- Are Twitter Users Equal in Predicting Elections? A Study of User Groups in Predicting 2012 U.S. Republican Presidential Primaries.-Web Page Recommendation Based on Semantic Web Usage Mining.- Scalable Analysis for Large Social Networks: The Data-Aware Mean-Field Approach.- A Survey of Recommender Systems in Twitter.- Multi-view Content-Based User Recommendation Scheme for Following Users in Twitter.- Spam Fighting in Social Tagging Systems.- The Multidimensional Study of Viral Campaigns as Branching Processes.- Models of Social Groups in Blogosphere Based on Information about Comment Addressees and Sentiments.- Dark Retweets: Investigating Non-conventional Retweeting Patterns.-Studying Paths of Participation in Viral Diffusion Process.- Paradox of Proximity - Trust and Provenance within the Context of Social Networks and Policy.- Namelings: Discover Given Name Relatedness Based on Data from the SocialWeb.- SocialTrends: A Web Application for Monitoring and Visualizing Users in Social Media.- Demonstration of Dynamic Targeting in an Online Social Medium.- Navigating between Chaos and Bureaucracy: Backgrounding Trust in Open-Content Communities.-