Towards a semantics-based approach in the development of geographic portals

被引：27

作者：

Athanasis, Nikolaos ^{[1
]}

Kalabokidis, Kostas ^{[1
]}

Vaitis, Michail ^{[1
]}

Soulakellis, Nikolaos ^{[1
]}

机构：

[1] Univ Aegean, Dept Geog, GR-81100 Mitilini, Greece

来源：

COMPUTERS & GEOSCIENCES | 2009年 / 35卷 / 02期

关键词：

Geoportal; Semantic web; RDF; Metadata; Navigation; RETRIEVAL; QUERY;

D O I：

10.1016/j.cageo.2008.01.014

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

As the demand for geospatial data increases, the lack of efficient ways to find suitable information becomes critical. In this paper, a new methodology for knowledge discovery in geographic portals is presented. Based on the Semantic Web, our approach exploits the Resource Description Framework (RDF) in order to describe the geoportal's information with ontology-based metadata. When users traverse from page to page in the portal, they take advantage of the metadata infrastructure to navigate easily through data of interest. New metadata descriptions are published in the geoportal according to the RDF schemas. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：301 / 308

页数：8

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