{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,27]],"date-time":"2026-03-27T18:55:15Z","timestamp":1774637715473,"version":"3.50.1"},"reference-count":44,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2024,3,6]],"date-time":"2024-03-06T00:00:00Z","timestamp":1709683200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"European Union\u2019s Connecting Europe Facility program","award":["2020-EU-IA-0274"],"award-info":[{"award-number":["2020-EU-IA-0274"]}]},{"name":"European Union\u2019s Connecting Europe Facility program","award":["PID2021-125725OB-I00"],"award-info":[{"award-number":["PID2021-125725OB-I00"]}]},{"name":"European Union\u2019s Connecting Europe Facility program","award":["MCIN\/AEI\/10.13039\/501100011033"],"award-info":[{"award-number":["MCIN\/AEI\/10.13039\/501100011033"]}]},{"DOI":"10.13039\/501100011033","name":"SITED (Semantically-enabled Interoperable Trustworthy Enriched Data-spaces)","doi-asserted-by":"publisher","award":["2020-EU-IA-0274"],"award-info":[{"award-number":["2020-EU-IA-0274"]}],"id":[{"id":"10.13039\/501100011033","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100011033","name":"SITED (Semantically-enabled Interoperable Trustworthy Enriched Data-spaces)","doi-asserted-by":"publisher","award":["PID2021-125725OB-I00"],"award-info":[{"award-number":["PID2021-125725OB-I00"]}],"id":[{"id":"10.13039\/501100011033","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100011033","name":"SITED (Semantically-enabled Interoperable Trustworthy Enriched Data-spaces)","doi-asserted-by":"publisher","award":["MCIN\/AEI\/10.13039\/501100011033"],"award-info":[{"award-number":["MCIN\/AEI\/10.13039\/501100011033"]}],"id":[{"id":"10.13039\/501100011033","id-type":"DOI","asserted-by":"publisher"}]},{"name":"European Union FEDER","award":["2020-EU-IA-0274"],"award-info":[{"award-number":["2020-EU-IA-0274"]}]},{"name":"European Union FEDER","award":["PID2021-125725OB-I00"],"award-info":[{"award-number":["PID2021-125725OB-I00"]}]},{"name":"European Union FEDER","award":["MCIN\/AEI\/10.13039\/501100011033"],"award-info":[{"award-number":["MCIN\/AEI\/10.13039\/501100011033"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Nowadays, there are plenty of data sources generating massive amounts of information that, combined with novel data analytics frameworks, are meant to support optimisation in many application domains. Nonetheless, there are still shortcomings in terms of data discoverability, accessibility and interoperability. Open Data portals have emerged as a shift towards openness and discoverability. However, they do not impose any condition to the data itself, just stipulate how datasets have to be described. Alternatively, the NGSI-LD standard pursues harmonisation in terms of data modelling and accessibility. This paper presents a solution that bridges these two domains (i.e., Open Data portals and NGSI-LD-based data) in order to keep benefiting from the structured description of datasets offered by Open Data portals, while ensuring the interoperability provided by the NGSI-LD standard. Our solution aggregates the data into coherent datasets and generate high-quality descriptions, ensuring comprehensiveness, interoperability and accessibility. The proposed solution has been validated through a real-world implementation that exposes IoT data in NGSI-LD format through the European Data Portal (EDP). Moreover, the results from the Metadata Quality Assessment that the EDP implements, show that the datasets\u2019 descriptions generated achieve excellent ranking in terms of the Findability, Accessibility, Interoperability and Reusability (FAIR) data principles.<\/jats:p>","DOI":"10.3390\/s24051695","type":"journal-article","created":{"date-parts":[[2024,3,6]],"date-time":"2024-03-06T04:03:50Z","timestamp":1709697830000},"page":"1695","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["A Connector for Integrating NGSI-LD Data into Open Data Portals"],"prefix":"10.3390","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0765-9687","authenticated-orcid":false,"given":"Laura","family":"Mart\u00edn","sequence":"first","affiliation":[{"name":"Network Planning and Mobile Communications Laboratory, Universidad de Cantabria, Plaza de la Ciencia s\/n, 39005 Santander, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9586-1334","authenticated-orcid":false,"given":"Jorge","family":"Lanza","sequence":"additional","affiliation":[{"name":"Network Planning and Mobile Communications Laboratory, Universidad de Cantabria, Plaza de la Ciencia s\/n, 39005 Santander, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1932-1616","authenticated-orcid":false,"given":"V\u00edctor","family":"Gonz\u00e1lez","sequence":"additional","affiliation":[{"name":"Network Planning and Mobile Communications Laboratory, Universidad de Cantabria, Plaza de la Ciencia s\/n, 39005 Santander, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1374-2153","authenticated-orcid":false,"given":"Juan Ram\u00f3n","family":"Santana","sequence":"additional","affiliation":[{"name":"Network Planning and Mobile Communications Laboratory, Universidad de Cantabria, Plaza de la Ciencia s\/n, 39005 Santander, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2881-3594","authenticated-orcid":false,"given":"Pablo","family":"Sotres","sequence":"additional","affiliation":[{"name":"Network Planning and Mobile Communications Laboratory, Universidad de Cantabria, Plaza de la Ciencia s\/n, 39005 Santander, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0136-3420","authenticated-orcid":false,"given":"Luis","family":"S\u00e1nchez","sequence":"additional","affiliation":[{"name":"Network Planning and Mobile Communications Laboratory, Universidad de Cantabria, Plaza de la Ciencia s\/n, 39005 Santander, Spain"}]}],"member":"1968","published-online":{"date-parts":[[2024,3,6]]},"reference":[{"key":"ref_1","first-page":"42","article-title":"Open data driven public accountability","volume":"11","author":"Piotrowski","year":"2017","journal-title":"Transform. 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