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Volume 11
Issue 3
10.3390/info11030129
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Article

The Zaragoza’s Knowledge Graph: Open Data to Harness the City Knowledge

by
Paola Espinoza-Arias
1,*,
María Jesús Fernández-Ruiz
2,
Victor Morlán-Plo
2,
Rubén Notivol-Bezares
2 and
Oscar Corcho
1
1
Ontology Engineering Group, ETSI Informáticos, Universidad Politécnica de Madrid, 28660 Madrid, Spain
2
Ayuntamiento de Zaragoza, Vía Hispanidad 20, 50071 Zaragoza, Spain
*
Author to whom correspondence should be addressed.
Information 2020, 11(3), 129; https://doi.org/10.3390/info11030129
Submission received: 29 January 2020 / Revised: 18 February 2020 / Accepted: 24 February 2020 / Published: 26 February 2020
(This article belongs to the Special Issue Linked Data and Knowledge Graphs in Large Organisations)
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Abstract

Public administrations handle large amounts of data in relation to their internal processes as well as to the services that they offer. Following public-sector information reuse regulations and worldwide open data publication trends, these administrations are increasingly publishing their data as open data. However, open data are often released without agreed data models and in non-reusable formats, reducing interoperability and efficiency in data reuse. These aspects hinder interoperability with other administrations and do not allow taking advantage of the associated knowledge in an efficient manner. This paper presents the continued work performed by the Zaragoza city council over more than 15 years in order to generate its knowledge graph, which constitutes the key piece of their data management system, whose main strengthen is the open-data-by-default policy. The main functionalities that have been developed for the internal and external exploitation of the city’s open data are also presented. Finally, some city council experiences and lessons learned during this process are also explained.
Keywords: public administration; linked open data; knowledge graph; interoperability; ontologies; open government data; vocabularies; API public administration; linked open data; knowledge graph; interoperability; ontologies; open government data; vocabularies; API

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MDPI and ACS Style

Espinoza-Arias, P.; Fernández-Ruiz, M.J.; Morlán-Plo, V.; Notivol-Bezares, R.; Corcho, O. The Zaragoza’s Knowledge Graph: Open Data to Harness the City Knowledge. Information 2020, 11, 129. https://doi.org/10.3390/info11030129

AMA Style

Espinoza-Arias P, Fernández-Ruiz MJ, Morlán-Plo V, Notivol-Bezares R, Corcho O. The Zaragoza’s Knowledge Graph: Open Data to Harness the City Knowledge. Information. 2020; 11(3):129. https://doi.org/10.3390/info11030129

Chicago/Turabian Style

Espinoza-Arias, Paola, María Jesús Fernández-Ruiz, Victor Morlán-Plo, Rubén Notivol-Bezares, and Oscar Corcho. 2020. "The Zaragoza’s Knowledge Graph: Open Data to Harness the City Knowledge" Information 11, no. 3: 129. https://doi.org/10.3390/info11030129

APA Style

Espinoza-Arias, P., Fernández-Ruiz, M. J., Morlán-Plo, V., Notivol-Bezares, R., & Corcho, O. (2020). The Zaragoza’s Knowledge Graph: Open Data to Harness the City Knowledge. Information, 11(3), 129. https://doi.org/10.3390/info11030129

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