We present RealFoodTrade (RFT), a system that allows farmers and fishermen to sell their products directly to the end-buyer. RFT makes use of Linked Data sets, together with a domain ontology designed by experts, to perform semantic search over products on sale. RFT employs geo-location technology on mobile devices to match demand and supply according to the location. We sketch the semantic sea...

The Semantic Desktop is a means to support users in Personal Information Management (PIM). It provides an excellent test bed for Semantic Web technology: resources (e. g., persons, projects, messages, documents) are distributed amongst multiple systems, ontologies are used to link and annotate them. Finding information is a core element in PIM. For the end user, the search interface has to be i...

Determining semantic similarity between academic documents is crucial to many tasks such as plagiarism detection, automatic technical survey and semantic search. Current studies mostly focus on semantic similarity between concepts, sentences and short text fragments. However, document-level semantic matching is still based on statistical information in surface level, neglecting article structur...

Discovering and ranking complex relationships in the semantic web is an important building block of semantic search applications. Although semantic web technologies define relations between objects but there are some complex (hidden) relationships that are valuable in different applications. Currently, users need to discover the relations between objects and find the level of semantic similarit...

The goal of each search service is to yield the most relevant results on a given query. Traditional full-text search is not enough and many approaches to improve search rankings are adopted. In this paper we propose a method of combined search query scoring computation leveraging lightweight semantics represented by metadata related to searchable content. It extends state-of-the-art approaches ...

Many experts predict that the next huge step forward in Web information technology will be achieved by adding semantics to Web data, and will possibly consist of (some form of) the Semantic Web. In this paper, we present an approach to Semantic Web search, which combines standard Web search with ontological background knowledge. In fact, we show how standard Web search engines can be used as th...

Search has for a long time been an important tool for users seeking information. Manypopular search systems have been based on keyword search. However, such systems arenot that well adapted to explore the search space. Effective exploration requires systemswhich can guide the user in his quest. The main focus of this thesis is to generate a framework for semantic navigational search...

Semantic wikis extend wiki platforms with the ability to represent structured information in a machine-processable way. On top of the structured information in the wiki, novel ways to search, browse, and present the wiki content become possible. However, while powerful query languages offer new opportunities for semantic search, the syntax of formal query languages is not adequate for end users...