One major obstacle towards adding machine-readable annotation to existing Web content is the lack of domain ontologies. While FOAF and Dublin Core are popular means for expressing relationships between Web resources and between Web resources and literal values, we widely lack unique identifiers for common concepts and instances. Also, most available ontologies have a very weak community groundi...

Most knowledge on the Web is encoded as natural language text, which is convenient for human users but very difficult for software agents to understand. Even with increased use of XML-encoded information, software agents still need to process the tags and literal symbols using application dependent semantics. The Semantic Web offers an approach in which knowledge can be published by and shared ...

LDSR is a collection of datasets from the Linked Open Data (LOD) W3C community project, which have been selected and refined for the purpose of presenting a useful perspective to some of the central LOD datasets and to present a good use-case for large-scale reasoning and data integration. The design objectives are as follows: (i) consistency with respect to the formal semantics, (ii) generalit...

The Social Web has grown considerably in the past eight years, with the emergence of sites like Facebook, Twitter, Flickr and WordPress.com. Most sites on the Social Web offer similar functionality: users share content (be it photos, blog posts, videos, bookmarks, etc.); users connect with other users, either directly or via common interests often reflected by shared content; users add free-tex...

The principal aim of Project StORe is to provide middleware that will enable bi-directional links between source repositories of research data and the output repositories containing research publications derived from these data. This two-way link is intended to improve opportunities for information discovery and the curation of valuable research output. In immediate terms, it is expected to imp...

The Semantic Web language RDF was designed to unambiguously define and use ontologies to encode data and knowledge on the Web. Many people find it difficult, however, to write complex RDF statements and queries because doing so requires familiarity with the appropriate ontologies and the terms they define. We describe a system that suggests appropriate RDF terms given semantically related Engli...

HotMatch is a multi-strategy matcher developed by a group of students at Technische Universität Darmstadt in the course of a hands-on training. It implements various matching strategies. The tool version submitted to OAEI 2012 combines different basic matching strategies, both element-based and structure-based, and a set of filters for removing faulty mappings. 1 Presentation of the system 1.1 ...

In our demonstration (with supportive poster) we want to present the Semantic Wiki application OntoWiki, which is an extensible tool for managing structured information in a collaborative, web-based environment. OntoWiki provides sophisticated means for navigating, visualising and authoring of RDF-based Knowledge Bases. It serves and consumes Linked Data and comprises a comprehensive middleware...

The reach of dominating social media like Facebook and Twitter in the current population is enormous, and these media have long been leveraged for diverse applications. In particular, for some citizen science projects, existing social media increasingly become platforms on which participants interact and contribute. These user contributions, often termed User-Generated Content (UGC), can be a m...

In this paper, we present FilmTrust, a website that integrates Semantic Web-based social networks, augmented with trust, to create predictive movie recommendations. We show how these recommendations are more accurate than other techniques in certain cases, and discuss this technique as a mechanism of Semantic Web interaction. Trust in social networks on the Semantic Web is a topic that has gain...