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• ανακοίνωση παρουσίασης διπλωματικής εργασίας Πρεβέντη Α. - ΗΜΜΥ

ανακοίνωση παρουσίασης διπλωματικής εργασίας Πρεβέντη Α. - ΗΜΜΥ

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• Συντάχθηκε 13-02-2012 14:28 από Galateia Malandraki

  Email συντάκτη: gmalandraki<στο>tuc.gr

  Ενημερώθηκε: -

  Ιδιότητα: υπάλληλος ΑΡΜΗΧ.
  
  ΠΟΛΥΤΕΧΝΕΙΟ ΚΡΗΤΗΣ
  Τμήμα Ηλεκτρονικών Μηχανικών & Μηχανικών Υπολογιστών
  
  ΠΑΡΟΥΣΙΑΣΗ ΔΙΠΛΩΜΑΤΙΚΗΣ ΕΡΓΑΣΙΑΣ
  
  ΑΛΕΞΑΝΔΡΟΥ ΠΡΕΒΕΝΤΗ
  
  με θέμα
  
  “Chronos: A Tool for Handling Temporal Ontologies in Protege”
  
  Πέμπτη 16 Φεβρουαρίου 2012, 9πμ
  Αίθουσα εργαστηρίου Ευφυών Συστημάτων, Κτίριο Επιστημών, Πολυτεχνειούπολη
  
  Εξεταστική Επιτροπή
  
  Αναπλ. Καθ. Ευριπίδης Πετράκης (επιβλέπων)
  Καθηγητής Μίνως Γαροφαλάκης
  Επίκ. Καθ. Μιχαήλ Λαγουδάκης
  
  
  
  Abstract
  
  The Semantic Web is the extension of the World Wide Web that makes the information machine-readable by using sets of concepts known as ontologies. An ontology describes the concepts in a domain of interest and also the relationships that hold between those concepts. The Web Ontology Language OWL is a semantic markup language for publishing and sharing ontologies on the World Wide Web. OWL is biased towards binary relations. Notice that, relations that vary in time are in fact ternary. The representation of ternary relations is a known problem whose solution calls for methods referred to as 4D-flunets or N-ary relations, with the later being a W3C recommendation. Apart from this, the two approaches are rather equivalent so that, selecting either one is simply a matter of tast. However, the resulting ontologies (with both appraoches) are rather complicated and difficult to read or handle. by Facilitating crafting (i.e., creating, editing) of temporal ontologies in Protege (a common OWL editor) is exactly the problem this work is dealing with. In this thesis we introduce Chronos, a plug-in for Protege OWL editor (version 4.1) that facilitates creation and editing of temporal ontologies. Chronos does not require the user to be familiar with the peculiarities of the underlying representation model. Particular emphasis has been given in the maintenance of the property semantics and restrictions, even after a property has been converted from static to temporal.
  

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  Συνημμένα:

  • Diplom.Ergasia-Preventi.doc
    Μεταφορτώσεις: 220, Μέγεθος: 31 KB application/octet-stream

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