title: A geo-temporal information extraction service for processing descriptive metadata in digital libraries
creator: Martins, Bruno
creator: Manguinhas, H.
creator: Borbinha, José
creator: Siabato Vaca, Willington Libardo
subject: Topography
subject: Computer Science
description: In the context of digital map libraries, resources are usually described according to metadata records that define the relevant subject, location, time-span, format and keywords. On what concerns locations and time-spans, metadata records are often incomplete or they provide information in a way that is not machine-understandable (e.g. textual descriptions). This paper presents techniques for extracting geotemporal information from text, using relatively simple text mining methods that leverage on a Web gazetteer service. The idea is to go from human-made geotemporal referencing (i.e. using place and period names in textual expressions) into geo-spatial coordinates and time-spans. A prototype system, implementing the proposed methods, is described in detail. Experimental results demonstrate the efficiency and accuracy of the proposed approaches.
publisher: E.T.S.I. en Topografía, Geodesia y Cartografía (UPM)
rights: https://creativecommons.org/licenses/by-nc-nd/3.0/es/
date: 2009
type: info:eu-repo/semantics/conferenceObject
type: Presentation at Congress or Conference
source: CD-ROM Proceedings of Third International Workshop Digital Approaches to Cartographic Heritage | Third International Workshop Digital Approaches to Cartographic Heritage | 26/06/2008-27/06/2008 | Barcelona, España
type: PeerReviewed
format: application/pdf
language: eng
relation: http://www.e-perimetron.org/Vol_4_1/Martins_et_al.pdf
rights: info:eu-repo/semantics/openAccess
identifier: https://oa.upm.es/4367/