Abstract

Forest Explorer is a web tool that can be used to easily browse the contents of the Cross-Forest dataset, a Linked Open Data resource containing the forestry inventory and land cover map from Spain. The tool is purposed for domain experts and lay users to facilitate the exploration of forestry data. Since these two groups are not knowledgable on Semantic Web, the user interface is designed to hide the complexity of RDF, OWL or SPARQL. An interactive map is provided for this purpose, allowing users to navigate to the area of interest and presenting forestry data with different levels of detail according to the zoom level. Forest Explorer offers different filter controls and is localized to English and Spanish. All the data is retrieved from the Cross-Forest and DBpedia endpoints through the Data manager. This component feeds the different Feature managers with the data needed to be displayed in the map. The Data manager uses a reduced set of SPARQL templates to accommodate any data request of the Feature managers. Caching and smart geographic querying are employed to limit data exchanges with the endpoint. A live version of the tool is freely available for everybody that wants to try it – any device with a modern browser should be sufficient to test it. Since December 2019, more than 3,200 users have employed Forest Explorer and it has appeared 12 times in the Spanish media. Results from a user study with 28 participants (mainly domain experts) show that Forest Explorer can be used to easily navigate the contents of the Cross-Forest dataset. No important limitations were found, only feature requests such as the integration of new datasets from other countries that are part of our future work.

Highlights

  • Exploiting forest inventories and land cover maps is a non-trivial task that requires both domain expertise and technical skills

  • More recent works [9] have stressed the importance of supporting both lay users and domain experts, e.g forest managers. Such users may not have any knowledge of SPARQL, OWL, or RDF and require appropriate tools to work with Linked Open Data

  • R In order to comply with requirement R4, the difCO ferent Feature managers are activated depending on Section 3, the Cross-Forest dataset contains a Linked Open Data version of the Spanish forest inventory and land cover map

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Summary

Background

Exploiting forest inventories and land cover maps is a non-trivial task that requires both domain expertise and technical skills. More recent works [9] have stressed the importance of supporting both lay users and domain experts, e.g forest managers Such users may not have any knowledge of SPARQL, OWL, or RDF and require appropriate tools to work with Linked Open Data. Since lay users have embraced map applications [32] and the target dataset is about spatial data, an interactive map seems a coupling to schemata, legacy formats, or limited tool suitable visualization for this case. Choose between province or patch views (R5) In the they should be able to set filters of tree species former case, the Province manager takes control and and land uses, as well as controlling which elerequests the presentation of inventory data aggregated ments of the view to show, e.g. choosing between by provinces.

Design and implementation
Logical architecture
Data gathering
User interface
Findings
Impact
Full Text
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