1,720,961 research outputs found
Using Knowledge Graphs to provide public service information
No full textPublic authorities all over the world publish an increasing amount of information about the Public Services (PS) they provide to facilitate discovery and use by citizens and businesses. Proper management (storing, processing, querying) of this information is necessary to make it fully exploitable. This includes adopting a common PS data model to facilitate interoperability, such as the Core Public Service Vocabulary (CPSV) developed by the European Union. In addition, the choice of technology is important as it is closely related to the quality of information. The aim of this paper is to investigate the benefits of adopting knowledge graphs to manage PS information that are structured using CPSV data model. For this purpose, we capitalize on previous research enriching CPSV and using RDF to develop a relevant knowledge graph and evaluate its use by employing various usage scenarios. The results suggest the use of knowledge graphs can provide benefits by exploiting domain-specific rules however there is still work to be done before the public sector widely adopts their use.252259DG.O 2022: The 23rd Annual International Conference on Digital Government Researc
Knowledge Graphs for Public Service Description: Τhe Case of Getting a Passport in Greece
No full textKnowledge Graphs for Public Service Description: Τhe Case of Getting a Passport in Greece
No full textAn important part of electronic Government is the provision of high quality Public Services (PS) to citizens. Towards this goal, the European Commission has proposed the Core Public Service Vocabulary (CPSV), as a PS data model to be used across the public sector. CPSV is adequate for use in the case of simple PS however its effectiveness is questionable in the case of complex PS. A complex PS is one having many (often complicated) rules interrelating its concepts, e.g. dictating citizens have to submit different documents to invoke a PS based on their profiles and circumstances. The aim of this paper is to investigate the use of Knowledge Graphs (KG) for providing personalized information on PS modeled using CPSV. For this purpose, we develop and evaluate a KG for PS "Get a passport" in Greece as a proof-of-concept to study mapping of CPSV to KG. For simplicity, we limit our scope to developing a KG that can provide the input documents and the relevant cost required for obtaining a passport by citizens based on their profile and circumstances. Free software GRAKN.AI was employed for the development of the KG.402270286Information Systems. EMCIS 202
The Pythagorean proposition: a historical approach of pythagorean relation
No full textΛέγεται από πολλούς, ότι το Πυθαγόρειο Θεώρημα το ανακάλυψε ο Πυθαγόρας, από άλλους ότι το απέδειξε. Κάποιοι αναφέρουν ότι το ανακάλυψαν οι Αιγύπτιοι ή και οι Βαβυλώνιοι. Σίγουρα έχει αποδειχθεί στα πλαίσια ενός ολοκληρωμένου αξιωματικού συστήματος, στα ΣΤΟΙΧΕΙΑ του Ευκλείδη το 300 π.Χ. περίπου. Τελικά τι έχει συμβεί πριν την εποχή του Ευκλείδη και πως εμφανίζεται το Πυθαγόρειο Θεώρημα σε διάφορους λαούς μετά τον Ευκλείδη; Τι ξέρουμε από πηγές και τι φανταζόμαστε; Σε τι μπορούμε να καταλήξουμε από επιστημονικές αναλύσεις και τι λένε οι διάφοροι μύθοι;
Στην παρούσα πτυχιακή εργασία προσεγγίσαμε ιστορικά την πυθαγόρεια ιδιότητα, τη γνωστή ως πυθαγόρειο θεώρημα. Συγκεκριμένα, μελετήσαμε την εμφάνιση αυτής της ιδιότητας σε διάφορους λαούς, καθώς και την πορεία που ο καθένας από αυτούς ακολούθησε ώστε να οδηγηθεί τελικά σε κάποιο είδος απόδειξης και εφαρμογής της. Αντλώντας πληροφορίες μέσα από έργα σπουδαίων συγγραφέων, μελετητών και σχολιαστών αλλά και ανώνυμων, καταγράψαμε από τα αρχαία χρόνια τον τρόπο που παρουσιαζόταν κάθε φορά η πυθαγόρεια ιδιότητα: άλλοτε ως μια απλή ιδιότητα σε ένα τρίγωνο, άλλοτε ως μια ιδιότητα του ορθογωνίου τριγώνου χωρίς απόδειξη και άλλοτε ως ιδιότητα που χρήζει απόδειξης.
Ξεκινήσαμε με το έργο του Ευκλείδη ΣΤΟΙΧΕΙΑ παρουσιάζοντας το Πυθαγόρειο Θεώρημα από το 1ο βιβλίο των ΣΤΟΙΧΕΙΩΝ. Προχωρήσαμε στα μαθηματικά των Πυθαγορείων και στη συνέχεια παρουσιάσαμε τη συμβολή άλλων λαών, των Βαβυλωνίων, των Αιγυπτίων, των Κινέζων και των Ινδών
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Towards exploiting BPMN and DMN in public service modeling
No full textModeling of Public Services (PSs) is used by a large number of public authorities worldwide to improve their quality. The resulting diagrams are useful in the case of simple PSs however they can become very complex in the case of complex PSs. To address process complexity, the integration of Business Process Model and Notation (BPMN) and Decision Model and Notation (DMN) has been proposed. DMN is applied to model the decision logic of a process and has proven to provide promising results in the private sector. However, the integration of BPMN and DMN has not been studied in the case of PSs. The aim of this paper is twofold. First, to investigate the integration of BPMN and DMN when applied to complex PSs. Second, to identify a set of steps and principles for integrating BPMN and DMN to model complex PSs. For this purpose, a literature review is conducted leading to the result that there is limited research on the use of BPMN to model complex PS while research on the use of DMN is missing. In addition, a PS is selected and modeled based on selected criteria and finally, a set of steps and principles is proposed.211216Proceedings of the 27th Pan-Hellenic Conference on Progress in Computing and Informatic
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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