Research about Web semantics can bene?t from ideas and cross-fertilization with many other areas: arti?cial intelligence, natural language processing, database and information systems, information - trieval, multimedia, distributed systems, social networks, Web engineering, and Web science.

Services and Software Track.- A Model of User Preferences for Semantic Services Discovery and Ranking.- Towards Practical Semantic Web Service Discovery.- iSeM: Approximated Reasoning for Adaptive Hybrid Selection of Semantic Services.- Measures for Benchmarking Semantic Web Service Matchmaking Correctness.- Efficient Semantic Event Processing: Lessons Learned in User Interface Integration.- Usage Policies for Document Compositions.- Social Web Track.- The Impact of Multifaceted Tagging on Learning Tag Relations and Search.- OKBook: Peer-to-Peer Community Formation.- Acquiring Thesauri from Wikis by Exploiting Domain Models and Lexical Substitution.- Efficient Semantic-Aware Detection of Near Duplicate Resources.- Guarding a Walled Garden — Semantic Privacy Preferences for the Social Web.- Using Social Media for Ontology Enrichment.- Representing Distributed Groups with d g FOAF.- Semantics, Sensors, and the Social Web: The Live Social Semantics Experiments.- Web of Data Track.- LESS - Template-Based Syndication and Presentation of Linked Data.- Hierarchical Link Analysis for Ranking Web Data.- A Node Indexing Scheme for Web Entity Retrieval.- Object Link Structure in the Semantic Web.- ExpLOD: Summary-Based Exploration of Interlinking and RDF Usage in the Linked Open Data Cloud.- Combining Query Translation with Query Answering for Efficient Keyword Search.- Improving the Performance of Semantic Web Applications with SPARQL Query Caching.- An Unsupervised Approach for Acquiring Ontologies and RDF Data from Online Life Science Databases.- Leveraging Terminological Structure for Object Reconciliation.- Usability of Keyword-Driven Schema-Agnostic Search.- Demo and Poster Track.- Collaborative Semantic Points of Interests.- Publishing Math Lecture Notes as Linked Data.- GoNTogle: A Tool for Semantic Annotation and Search.- A Software Tool for Visualizing, Managing and Eliciting SWRL Rules.- A Knowledge Infrastructure for the Dutch Immigration Office.- Verifying andValidating Multi-layered Models with OWL FA Toolkit.- What’s New in WSMX?.- OntoFrame S3: Semantic Web-Based Academic Research Information Portal Service Empowered by STAR-WIN.- Rapid Prototyping a Semantic Web Application for Cultural Heritage: The Case of MANTIC.- Hey! Ho! Let’s Go! Explanatory Music Recommendations with dbrec.- PossDL — A Possibilistic DL Reasoner for Uncertainty Reasoning and Inconsistency Handling.- PoolParty: SKOS Thesaurus Management Utilizing Linked Data.- DSMW: Distributed Semantic MediaWiki.- TrOWL: Tractable OWL 2 Reasoning Infrastructure.- Making the Semantic Data Web Easily Writeable with RDFauthor.- BioNav: An Ontology-Based Framework to Discover Semantic Links in the Cloud of Linked Data.- StarLion: Auto-configurable Layouts for Exploring Ontologies.- PhD Symposium.- Concept Extraction Applied to the Task of Expert Finding.- Towards Trust in Web Content Using Semantic Web Technologies.- The Semantic Gap of Formalized Meaning.- A Contextualized KnowledgeFramework for Semantic Web.- Computational and Crowdsourcing Methods for Extracting Ontological Structure from Folksonomy.- Debugging the Missing Is-A Structure of Networked Ontologies.- Global Semantic Graph as an Alternative Information and Collaboration Infrastructure.- Scalable and Parallel Reasoning in the Semantic Web.- Exploring the Wisdom of the Tweets: Towards Knowledge Acquisition from Social Awareness Streams.- Two Phase Description Logic Reasoning for Efficient Information Retrieval.