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  • Digital Curation Unit
    the growing development of eGovernment information systems there is an increasing need to handle Public Sector Information PSI in a homogeneous way Ontologies are currently a powerful tool to act as semantic reference models for the development of information systems and as semantic mediators for achieving interoperability In this paper we analyze the procedures that lead to the PSI s production and management and we present all the concepts and

    Original URL path: http://www.dcu.gr/index.php?p=publications&lang=el§ion=0&id=51 (2016-02-15)
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  • Digital Curation Unit
    as well as the architectural features of Mopseus a digital library service built on top of Fedora commons middleware designed to facilitate institutions to develop and preserve their own repositories The main advantage of Mopseus is that it minimizes the customization and programming effort that Fedora commons involves Moreover it provides an added value service which semantically annotates the internal structure of a Digital Object The paper focuses on the

    Original URL path: http://www.dcu.gr/index.php?p=publications&lang=el§ion=0&id=52 (2016-02-15)
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  • Digital Curation Unit
    UK September 2010 Lecture Notes in Computer Science LNCS Pages 38 45 Αρχική τοποθεσία URL Περίληψη The wide use of a number of cultural heritage metadata schemas imposes the development of new interoperability techniques that facilitate unified access to cultural resources In this paper we focus on the ontology based semantic integration by proposing an expressive mapping language for the specification of the mappings between the XML based metadata schemas

    Original URL path: http://www.dcu.gr/index.php?p=publications&lang=el§ion=0&id=53 (2016-02-15)
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  • Digital Curation Unit
    Libraries ECDL 2010 Glasgow Scotland UK September 2010 Lecture Notes in Computer Science LNCS Volume 6273 Pages 445 448 Αρχική τοποθεσία URL Περίληψη This paper presents Mopseus a Fedora commons based digital repository that focuses on preservation An overview of the general architecture of the system is presented along with some more in depth details of its semantic structures Mopseus features dynamic RDF based relations a service for defining metadata

    Original URL path: http://www.dcu.gr/index.php?p=publications&lang=el§ion=0&id=54 (2016-02-15)
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  • Digital Curation Unit
    A Gavrilis D Kotidis Y Papatheodorou C 2009 The International Journal of Digital Curation Volume 4 Issue 1 Pages 34 45 Αρχική τοποθεσία URL Περίληψη The proliferation of Web database and social networking technologies has enabled us to produce publish and exchange digital assets at an enormous rate This vast amount of information that is either digitized or born digital needs to be collected organized and preserved in a way that ensures that our digital assets and the information they carry remain available for future use Digital curation has emerged as a new inter disciplinary practice that seeks to set guidelines for disciplined management of information In this paper we review two recent models for digital curation introduced by the Digital Curation Centre DCC and the Digital Curation Unit DCU of the Athena Research Centre We then propose a fusion of the two models that highlights the need to extend the digital curation lifecycle by adding a provisions for the registration of usage experience b a stage for knowledge enhancement and c controlled vocabularies used by convention to denote concepts properties and relations The objective of the proposed extensions is twofold i to provide a more complete lifecycle model for

    Original URL path: http://www.dcu.gr/index.php?p=publications&lang=el§ion=0&id=7 (2016-02-15)
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  • Digital Curation Unit
    Tsoulos I Gavrilis D Glavas E 2009 Neurocomputing Volume 72 Issues 10 12 Pages 2385 2391 Άρθρο PDF Περίληψη A novel hybrid method for the solution of ordinary and partial differential equations is presented here The method creates trial solutions in neural network form using a scheme based on grammatical evolution The trial solutions are enhanced periodically using a local optimization procedure The proposed method is tested on a series

    Original URL path: http://www.dcu.gr/index.php?p=publications&lang=el§ion=0&id=8 (2016-02-15)
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  • Digital Curation Unit
    Περίληψη Over recent years there has been a worldwide growing need for interoperability among the systems that manage and reuse public sector information This paper explores the documentation needs for public sector information and focuses on metadata interoperability issues The research work studies a variety of public sector information metadata standards and guidelines internationally accepted and presents two methodologies to obtain interoperability The first develops an application profile while the

    Original URL path: http://www.dcu.gr/index.php?p=publications&lang=el§ion=0&id=9 (2016-02-15)
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  • Digital Curation Unit
    ACL IJCNLP 2009 Suntec Singapore 2009 Αρχική τοποθεσία URL Περίληψη We present a system that finds short definitions of terms on Web pages It employs a Maximum Entropy classifier but it is trained on automatically generated examples hence it is in effect unsupervised We use ROUGE W to generate training examples from encyclopedias and Web snippets a method that outperforms an alternative centroid based one After training our system can

    Original URL path: http://www.dcu.gr/index.php?p=publications&lang=el§ion=0&id=19 (2016-02-15)
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