Papers by Georgia Solomou
D-lib Magazine, 2010
Bookmarks Related papers MentionsView impact
IEEE Internet Computing, 2010
Thesauri are concept schemes that help in efficiently characterizing and retrieving items from di... more Thesauri are concept schemes that help in efficiently characterizing and retrieving items from digital libraries. SKOS is a data model that provides a standardized way to represent thesauri-and controlled vocabularies in general-using Resource Description Framework. A digital repository system that can inherently ingest and handle thesauri, although not in SKOS format, is DSpace. SKOS support in DSpace is implemented thanks to an add-on, provided by the University of Minho. Our initial objective was to apply this add-on to a running DSpace instance. We then tested this updated DSpace installation using a real vocabulary: the Thesaurus of Greek Terms for which we took on the task of bringing it in SKOS. As a final step, we tried to tackle with arising problems and to propose solutions, which are mostly based on the Semantic Web techniques.
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Journal of Digital Information, 2009
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
In order for Semantic Web applications to be successful a key component should be their ability t... more In order for Semantic Web applications to be successful a key component should be their ability to take advantage of rich content descriptions in meaningful ways. Reasoning consists a key part in this process and it consequently appears at the core of the Semantic Web architecture stack. From a practical point of view however, it is not always clear how
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
International Journal on Digital Libraries, 2009
Digital repositories and digital libraries are today among the most common tools for managing and... more Digital repositories and digital libraries are today among the most common tools for managing and disseminating digital object collections of cultural, educational, and other kinds of content over the Web. However, it is often the case that descriptive information about these assets, known as metadata, are usually semi-structured from a semantics point of view; implicit knowledge about this content may exist that cannot always be represented in metadata implementations and thus is not always discoverable. To this end, in this article we propose a method and a practical implementation that could allow traditional metadata-intensive repositories to benefit from Semantic Web ideas and techniques. In particular, we show how, starting with a semi-structured knowledge model (like the one offered by DSpace), we can end up with inference-based knowledge discovery, retrieval, and navigation among the repository contents. Our methodology and results are applied on the University of Patras institutional repository. The resulting prototype is also available as a plug-in, although it can fit, in principle, any other kind of digital repository.
Bookmarks Related papers MentionsView impact
Information and knowledge retrieval are today some of the main assets of the Semantic Web. Howeve... more Information and knowledge retrieval are today some of the main assets of the Semantic Web. However, a notable immaturity still exists, as to what tools, methods and standards may be used to effectively achieve these goals. No matter what approach is actually followed, querying Semantic Web information often requires deep knowledge of the ontological syntax, the querying protocol and the knowledge base structure as well as a careful elaboration of the query itself, in order to extract the desired results. In this paper, we propose a structured semantic query interface that helps to construct and submit entailment-based queries in an intuitive way. It is designed so as to capture the meaning of the intended user query, regardless of the formalism actually being used, and to transparently formulate one in reasoner-compatible format. This interface has been deployed on top of the semantic search prototype of the DSpace digital repository system.
Bookmarks Related papers MentionsView impact
Uploads
Papers by Georgia Solomou