Browsing Περιοδικά, εφημερίδες by Subject "Διαχείριση υπηρεσιών, λειτουργιών και τεχνικών πληροφόρησης, Δομές δεδομένων και μεταδεδομένων"

Now showing items 1-20 of 41

    • An adaptable framework for integrating and querying sensor data 

      Καπιδάκης, Σαράντος; Ferdous, S.; Fegaras, L.; Makedon, Filia; Kapidakis, Sarantos (2011)
      Sensor data generated by pervasive applications are very diverse and are rarely described in standard or established formats. Consequently, one of the greatest challenges in pervasive systems is to integrate heterogeneous ...

    • Automatic Generation of Crosswalks through CIDOC CRM 

      Μπουντούρη, Λίνα; Γαϊτάνου, Πανωραία; Γεργατσούλης, Μανώλης; Gaitanou, Panorea; Gergatsoulis, Manolis; Bountouri, Lina (2012)
      In this paper, we propose an algorithm that automatically generates crosswalks between metadata schemas. The algorithm exploits the mappings between the schemas and the CIDOC Conceptual Reference Model (CRM), defined as ...

    • Benchmarking library and application software with Data Envelopment Analysis 

      Χατζηγεωργίου, Αλέξανδρος; Στειακάκης, Εμμανουήλ; Chatzigeorgiou, Alexander; Stiakakis, Emmanouil (2011)
      Library software is generally believed to be well-structured and follows certain design guidelines due to the need of continuous evolution and stability of the respective APIs. We perform an empirical study to investigate ...

    • Comparing metadata quality in the Europeana context 

      Καπιδάκης, Σαράντος; Kapidakis, Sarantos (2012)
      The quality of the metadata affects the interoperability of the collections and the quality of all search results, and is important to the success of Europeana. It is not obvious how to define quality metrics, on different ...

    • Data Brokers: building collections through automated negotiation 

      Καπιδάκης, Σαράντος; Makedon, Filia; Ye, S.; Zhang, S.; Ford, J.; Shen, L.; Kapidakis, Sarantos (2004)
      Collecting digital materials is time-consuming and can gain from automation. Since each source - and even each acquisition - may involve a separate negotiation of terms, a collector may prefer to use a broker to represent ...

    • A decentralized infrastructure for the efficient management of resources in the web of data 

      Παπαδάκης, Ιωάννης; Στεφανιδάκης, Μιχάλης; Papadakis, Ioannis; Stefanidakis, Michalis (2012)
      A key requirement in linking open data refers to the rendering of such data easy to explore and consume. Such a requirement is critical for the overall quality of linked data in terms of consistency and interlinking. ...

    • Defining a semantic mapping of VRA Core 4.0 to the CIDOC conceptual reference model 

      Γεργατσούλης, Μανώλης; Γαϊτάνου, Πανωραία; Gergatsoulis, Manolis; Gaitanou, Panorea (2012)
      In the recent decades, we have witnessed a tremendous proliferation of metadata schemas, particularly in the cultural heritage domain. As a consequence, cultural heritage communities face a growing need to integrate these ...

    • Describing immovable monuments with metadata standards 

      Καπιδάκης, Σαράντος; Αγαθός, Μιχαήλ; Agathos, Michail; Kapidakis, Sarantos (2012)
      Collections with immovable monuments are less researched than other material of our culture from the aspect of description. This led us to study the metadata elements hosted in various heterogeneous schemas by local ...

    • Discovering the structure and impact of the digital library evaluation domain 

      Παπαχριστόπουλος, Λεωνίδας; Τσάκωνας, Γιάννης; Σφακάκης, Μιχάλης; Κλειδης, Νικος; Λένης, Σέργιος; Παπαθεοδώρου, Χρήστος; Papachristopoulos, Leonidas; Tsakonas, Giannis; Boudourides, Moses; Sfakakis, Michalis; Kleidis, Nikos; Lenis, Sergios; Papatheodorou, Christos (2017-06)
      The multidimensional nature of digital libraries evaluation domain poses several challenges to the research communities that intend to assess criteria, methods, products and tools, and also practice them. The amount of ...

    • Harvesting metadata for immovable monuments from "local inventories" and mapping them to standards 

      Καπιδάκης, Σαράντος; Αγαθός, Μιχαήλ; Agathos, Michail; Kapidakis, Sarantos (2011)
      This work focuses on a harvesting of various metadata elements that exists in informally and heterogeneous schemas for the documentation of immovable monuments used from many Greek public services, working in the field of ...

    • Implementing enhanced OAI-PMH requirements for Europeana 

      Γαρουφάλλου, Εμμανουήλ; Χούσος, Νίκος; Σταμάτης, Κωνσταντίνος; Μπάνος, Ευάγγελος; Καπιδάκης, Σαράντος; Κουλούρης, Αλέξανδρος; Garoufallou, Emmanouel; Kapidakis, Sarantos; Koulouris, Alexandros; Banos, Vangelis; Houssos, Nikos; Stamatis, Kostas (2011)
      Europeana has put in a stretch many known procedures in digital libraries, imposing requirements difficult to be implemented in many small institutions, often without dedicated systems support personnel. Although there are ...

    • In the Name of the Name: RDF Literals, ER Attributes, and the Potential to Rethink the Structures and Visualizations of Catalogs 

      Πεπονάκης, Μανώλης; Peponakis, Manolis (2016)
      The aim of this study is to contribute to the field of machine-pro cessable bibliographic data that is suitable for the Semantic Web. We examine the Entity Relationship (ER) model, which has been selected by IFLA as a ...

    • Incorporating dimensions in XML and DTD 

      Γεργατσούλης, Μανώλης; Σταύρακας, Γιάννης; Καρτέρης, Δ.; Gergatsoulis, Manolis; Stavrakas, Yannis; Karteris, D. (2001)
      In this,paper we investigate various aspects of representing multidimensional information in the frame of the WWW. Multidimensional XML (MXML) is an extension of XML suitable for representing data that assume different ...

    • Learners' perceptions on the importance of learning object metadata for relevance judgement 

      Γαρουφάλλου, Εμμανουήλ; Μπαλατσούκας, Παναγιώτης; Ασδέρη, Στυλιανή; Σιάτρη, Ράνια; Morris, A.; O'Brien, A.; Garoufallou, Emmanouel; Balatsoukas, Panos; Asderi, Styliani; Siatri, Rania (2012)
      The purpose of this study was to investigate university students' perceptions on the importance of learning object metadata elements for judging the relevance of learning objects. In order to address this objective an ...

    • Libraries’ Metadata as Data in the Era of the Semantic Web: modeling a Repository of Master Theses and PhD Dissertations for the Web of Data 

      Πεπονάκης, Μανώλης; Peponakis, Manolis (2013)
      This study argues that metadata of library catalogs can stand autonomously, providing valuable information detached from the resources they point to and, therefore, could be used as data in the context of the Semantic Web. ...

    • Linking the (un)linked data through backlinks 

      Παπαδάκης, Ιωάννης; Στεφανιδάκης, Μιχάλης; Papadakis, Ioannis; Stefanidakis, Michalis (2011)
      This paper proposes a framework capable of enhancing the interlinking between Linked Open Data - LOD repositories. Such interlinking is achieved through the realization of back-linking. Backlinking refers to the consistent ...

    • Mapping cultural metadata schemas to CIDOC conceptual reference model 

      Γεργατσούλης, Μανώλης; Μπουντούρη, Λίνα; Παπαθεοδώρου, Χρήστος; Γαϊτάνου, Πανωραία; Gergatsoulis, Manolis; Gaitanou, Panorea; Bountouri, Lina; Papatheodorou, Christos (2010)
      Managing heterogeneous data is a challenge for cultural heritage institutions as they host and develop various collections with heterogeneous types of material, described by different metadata schemas. In this paper, we ...

    • Meta-composer: synthesizing online FRBR works from library resources 

      Καπιδάκης, Σαράντος; Σφακάκης, Μιχάλης; Στάικος, Παναγιώτης; Staikos, Panagiotis; Kapidakis, Sarantos; Sfakakis, Michalis (2010)
      Next generation display and indexing of cataloging records are mainly influenced from the development of the FRBR conceptual model. While the process for collecting all relevant bibliographic records in a catalogue to an ...

    • A metadata application profile for collection-level description of digital folklore resources 

      Λουρδή, Ειρήνη; Παπαθεοδώρου, Χρήστος; Lourdi, Eirini; Papatheodorou, Christos (2004)
      The preservation and representation of folklore collections is a basic priority for every country because they are valuable for studying the customs and the tradition of specific groups of people and places. However, for ...

    • Metadata for digital collections of e-government resources. 

      Ταμπούρης, Ευθύμιος; Μανουσέλης, Νίκος; Κωστοπούλου, Κωνσταντίνα; Manouselis, Nikos; Costopoulou, Constantina; Tambouris, Efthimios (2007)
      The purpose of this paper is to introduce a process for developing a metadata element set that will describe e-government resources in digital collections. The outcome of the process is a metadata schema that reuses as ...