{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,23]],"date-time":"2026-01-23T20:15:51Z","timestamp":1769199351515,"version":"3.49.0"},"reference-count":0,"publisher":"Copernicus GmbH","license":[{"start":{"date-parts":[[2021,6,4]],"date-time":"2021-06-04T00:00:00Z","timestamp":1622764800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["AGILE GIScience Ser."],"abstract":"<jats:p>Abstract. A growing body of geospatial research has shifted the focus from fully structured to semistructured and unstructured content written in natural language. Natural language texts provide a wealth of knowledge about geospatial concepts, places, events, and activities that needs to be extracted and formalized to support semantic annotation, knowledge-based exploration, and semantic search. The paper presents a web-based prototype for the extraction of geospatial entities and concepts, and the subsequent semantic visualization and interactive exploration of the extraction results. A lightweight ontology anchored in natural language guides the interpretation of natural language texts and the extraction of relevant domain knowledge. The approach is applied on three heterogeneous sources which provide a wealth of spatial concepts and place names.\n                    <\/jats:p>","DOI":"10.5194\/agile-giss-2-38-2021","type":"journal-article","created":{"date-parts":[[2021,6,4]],"date-time":"2021-06-04T13:20:36Z","timestamp":1622812836000},"page":"1-7","source":"Crossref","is-referenced-by-count":3,"title":["Educing knowledge from text: semantic information extraction of spatial concepts and places"],"prefix":"10.5194","volume":"2","author":[{"given":"Evangelos","family":"Papadias","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Margarita","family":"Kokla","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eleni","family":"Tomai","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"3145","published-online":{"date-parts":[[2021,6,4]]},"container-title":["AGILE: GIScience Series"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/agile-giss.copernicus.org\/articles\/2\/38\/2021\/agile-giss-2-38-2021.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,6,4]],"date-time":"2021-06-04T13:20:36Z","timestamp":1622812836000},"score":1,"resource":{"primary":{"URL":"https:\/\/agile-giss.copernicus.org\/articles\/2\/38\/2021\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,6,4]]},"references-count":0,"URL":"https:\/\/doi.org\/10.5194\/agile-giss-2-38-2021","relation":{},"ISSN":["2700-8150"],"issn-type":[{"value":"2700-8150","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,6,4]]}}}