Μοντέλα ποιότητας Μεταδεδομένων
Date Issued
November 8, 2019
Type
Μεταπτυχιακή Διπλωματική Εργασία
Abstract
My thesis entitled "Metadata quality models" makes a brief reference to the Bibframe bibliographic representation model, which is based on both RDF model architecture and a build presence common features and differences between RDF and LPG. The three subsystems used for the thesis are presented: the Bibframe editor, Loopback REST-APIs and the web application implemented for the needs of the thesis, converting Bibframe entity into Neo4j scripts. Describes the architecture of the web application as well as its algorithms, segments, and how to represent Bibframe entities in Neo4j scripts.
The application downloads a Bibframe entity in JSON-LD file format and transforms it into Neo4j scripts, applying a TTL Bibframe format to a Neo4j graph conversion algorithm. This algorithm maintains the layout and hierarchy of RDF graphs for future use in quality measurements. We have the multiple appearance of Bibframe entity a) as a regular subscription, simulating subscriptions of content used by the LOC to the public. The same page shows the hierarchy of Bibframe entity classes ending in their corresponding Literal. (b) neo4j graph and (c) RDF graph. There are two search engines, the first one is being applied by the LOC to the trial version of the editor while the second one can retrieve, from the entities that are imported, any Literal displaying the Bibframe records from which it originated. For comparison purposes, a corresponding RDF to Neo4j conversion algorithm by J. Barrasa is used.
Subjects