Mobility Track -- Incremental Reasoning on Streams and Rich Background Knowledge -- Mobile Semantic-Based Matchmaking: A Fuzzy DL Approach -- Replication and Versioning of Partial RDF Graphs -- Finding Your Way through the Rijksmuseum with an Adaptive Mobile Museum Guide -- A Hybrid Model and Computing Platform for Spatio-semantic Trajectories -- Ontologies and Reasoning Track -- Reactive Policies for the Semantic Web -- Categorize by: Deductive Aggregation of Semantic Web Query Results -- Natural Language Interfaces to Ontologies: Combining Syntactic Analysis and Ontology-Based Lookup through the User Interaction -- GeoWordNet: A Resource for Geo-spatial Applications -- Assessing the Safety of Knowledge Patterns in OWL Ontologies -- Entity Reference Resolution via Spreading Activation on RDF-Graphs -- A Generic Approach for Correcting Access Restrictions to a Consequence -- Dealing with Inconsistency When Combining Ontologies and Rules Using DL-Programs -- Aligning Large SKOS-Like Vocabularies: Two Case Studies -- OWL Reasoning with WebPIE: Calculating the Closure of 100 Billion Triples -- Efficiently Joining Group Patterns in SPARQL Queries -- Reasoning-Based Patient Classification for Enhanced Medical Image Annotation -- Semantic Web in Use Track -- Facilitating Dialogue - Using Semantic Web Technology for eParticipation -- Implementing Archaeological Time Periods Using CIDOC CRM and SKOS -- Facet Graphs: Complex Semantic Querying Made Easy -- Interactive Relationship Discovery via the Semantic Web -- Put in Your Postcode, Out Comes the Data: A Case Study -- Taking OWL to Athens -- Generating Innovation with Semantically Enabled TasLab Portal -- Context-Driven Semantic Enrichment of Italian News Archive -- A Pragmatic Approach to Semantic Repositories Benchmarking -- A Web-Based Repository Service for Vocabularies and Alignments in the Cultural Heritage Domain -- Ontology Management in an Event-Triggered Knowledge Network -- Sensor Networks Track -- Modeling and Querying Metadata in the Semantic Sensor Web: The Model stRDF and the Query Language stSPARQL.

The books (LNCS 6088 and 6089) constitute the refereed proceedings of the 7th European Semantic Web Conference, ESWC 2010, held in Heraklion, Crete, Greece, in May/June 2010. The 52 revised full papers of the research track presented together with 10 PhD symposium papers and 17 demo papers were carefully reviewed and selected from more than 245 submissions. The papers are organized in topical sections on mobility track, ontologies and reasoning track, semantic web in use track, sensor networks track (part I), and services and software track, social web track, web of data track, demo and poster track, PhD symposium (part II).