Geo-Enrichment and Semantic Enhancement of Metadata Sets to Augment Discovery in Geoportals
Geoportals are established to function as main gateways to find, evaluate, and start “using” geographic information. Still, current geoportal implementations face problems in optimizing the discovery process due to semantic heterogeneity issues, which leads to low recall and low precision in perform...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2014-03-01
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| Series: | ISPRS International Journal of Geo-Information |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2220-9964/3/1/345 |
| _version_ | 1819016557376831488 |
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| author | Bernhard Vockner Manfred Mittlböck |
| author_facet | Bernhard Vockner Manfred Mittlböck |
| author_sort | Bernhard Vockner |
| collection | DOAJ |
| description | Geoportals are established to function as main gateways to find, evaluate, and start “using” geographic information. Still, current geoportal implementations face problems in optimizing the discovery process due to semantic heterogeneity issues, which leads to low recall and low precision in performing text-based searches. Therefore, we propose an enhanced semantic discovery approach that supports multilingualism and information domain context. Thus, we present workflow that enriches existing structured metadata with synonyms, toponyms, and translated terms derived from user-defined keywords based on multilingual thesauri and ontologies. To make the results easier and understandable, we also provide automated translation capabilities for the resource metadata to support the user in conceiving the thematic content of the descriptive metadata, even if it has been documented using a language the user is not familiar with. In addition, to text-enable spatial filtering capabilities, we add additional location name keywords to metadata sets. These are based on the existing bounding box and shall tweak discovery scores when performing single text line queries. In order to improve the user’s search experience, we tailor faceted search strategies presenting an enhanced query interface for geo-metadata discovery that are transparently leveraging the underlying thesauri and ontologies. |
| first_indexed | 2024-12-21T02:49:31Z |
| format | Article |
| id | doaj.art-d4318043e9c74e53b30d00ed26326252 |
| institution | Directory Open Access Journal |
| issn | 2220-9964 |
| language | English |
| last_indexed | 2024-12-21T02:49:31Z |
| publishDate | 2014-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | ISPRS International Journal of Geo-Information |
| spelling | doaj.art-d4318043e9c74e53b30d00ed263262522022-12-21T19:18:28ZengMDPI AGISPRS International Journal of Geo-Information2220-99642014-03-013134536710.3390/ijgi3010345ijgi3010345Geo-Enrichment and Semantic Enhancement of Metadata Sets to Augment Discovery in GeoportalsBernhard Vockner0Manfred Mittlböck1Research Studios Austria—Studio iSPACE, Schillerstr. 25, Salzburg 5020, AustriaResearch Studios Austria—Studio iSPACE, Schillerstr. 25, Salzburg 5020, AustriaGeoportals are established to function as main gateways to find, evaluate, and start “using” geographic information. Still, current geoportal implementations face problems in optimizing the discovery process due to semantic heterogeneity issues, which leads to low recall and low precision in performing text-based searches. Therefore, we propose an enhanced semantic discovery approach that supports multilingualism and information domain context. Thus, we present workflow that enriches existing structured metadata with synonyms, toponyms, and translated terms derived from user-defined keywords based on multilingual thesauri and ontologies. To make the results easier and understandable, we also provide automated translation capabilities for the resource metadata to support the user in conceiving the thematic content of the descriptive metadata, even if it has been documented using a language the user is not familiar with. In addition, to text-enable spatial filtering capabilities, we add additional location name keywords to metadata sets. These are based on the existing bounding box and shall tweak discovery scores when performing single text line queries. In order to improve the user’s search experience, we tailor faceted search strategies presenting an enhanced query interface for geo-metadata discovery that are transparently leveraging the underlying thesauri and ontologies.http://www.mdpi.com/2220-9964/3/1/345synonymtranslationSKOSthesaurusontologyWiktionarygeoplatformcatalogueSDI |
| spellingShingle | Bernhard Vockner Manfred Mittlböck Geo-Enrichment and Semantic Enhancement of Metadata Sets to Augment Discovery in Geoportals ISPRS International Journal of Geo-Information synonym translation SKOS thesaurus ontology Wiktionary geoplatform catalogue SDI |
| title | Geo-Enrichment and Semantic Enhancement of Metadata Sets to Augment Discovery in Geoportals |
| title_full | Geo-Enrichment and Semantic Enhancement of Metadata Sets to Augment Discovery in Geoportals |
| title_fullStr | Geo-Enrichment and Semantic Enhancement of Metadata Sets to Augment Discovery in Geoportals |
| title_full_unstemmed | Geo-Enrichment and Semantic Enhancement of Metadata Sets to Augment Discovery in Geoportals |
| title_short | Geo-Enrichment and Semantic Enhancement of Metadata Sets to Augment Discovery in Geoportals |
| title_sort | geo enrichment and semantic enhancement of metadata sets to augment discovery in geoportals |
| topic | synonym translation SKOS thesaurus ontology Wiktionary geoplatform catalogue SDI |
| url | http://www.mdpi.com/2220-9964/3/1/345 |
| work_keys_str_mv | AT bernhardvockner geoenrichmentandsemanticenhancementofmetadatasetstoaugmentdiscoveryingeoportals AT manfredmittlbock geoenrichmentandsemanticenhancementofmetadatasetstoaugmentdiscoveryingeoportals |