Abstract
Ontologies in agronomy facilitate data integration, information exchange, search and query of agronomic data, and other knowledge-intensive tasks. We have developed AgroPortal, an open community-based repository of agronomy and related domains semantic resources. From a corpus of ontologies, terminologies, and thesauri taken from AgroPortal, we have generated, extracted and analyzed more than 400,000 mappings between concepts based on: (i) reuse of the same URI between concepts in different resources –term reuse; (ii) lexical similarity of concept names and synonyms –term overlap; and (iii) declared mappings properties between concepts –extracted mappings. We developed an interactive visualization of each mapping construct separately and combined which helps users identify most prominent ontologies, relevant thematic clusters, areas of a domain that are not well covered, and pertinent ontologies as background knowledge. By comparing the size of the semantic resources to the number of their mappings, we found that most of them have under 5% of their terms mapped. Our results show the need of an ontology alignment framework in AgroPortal where mappings between semantic resources will be assembled, compared, analysed and automatically updated when semantic resources evolve.
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Notes
- 1.
We prefer here the term “construct” to “type” which is used in our work with another meaning: to quality the mapping (exact match, close match, same as, etc.).
- 2.
The most frequent case of reuse concern classes/concepts, however any object identified by an URI can be reused from one semantic resource to the other (e.g., owl:Class, owl:Individual, rdfs:Property, skos:Concept).
- 3.
The NCBO BioPortal technology can be reused and customized for deploying other ontology repositories e.g., AgroPortal or EcoPortal. Since 2019, the generic technology is branded as OntoPortal (https://ontoportal.org).
- 4.
See https://github.com/agroportal/documentation/wiki/Mappings for details.
- 5.
E.g., the following call returns all the mappings between the Agronomy and Plant Ontology: http://data.agroportal.lirmm.fr/mappings?ontologies=AGRO,PO.
- 6.
- 7.
Our mapping dataset is publicly available at https://bit.ly/3gFJ2DD.
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Acknowledgements
This work was achieved with support of the AGRO Labex (ANR-10-LABX-0001), the NUMEV Labex (ANR-10-LABX-20) and the Data to Knowledge in Agronomy and Biodiversity (D2KAB – www.d2kab.org) project that received funding from the French National Research Agency (ANR-18-CE23-0017).
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Laadhar, A., Abrahão, E., Jonquet, C. (2020). Analysis of Term Reuse, Term Overlap and Extracted Mappings Across AgroPortal Semantic Resources. In: Keet, C.M., Dumontier, M. (eds) Knowledge Engineering and Knowledge Management. EKAW 2020. Lecture Notes in Computer Science(), vol 12387. Springer, Cham. https://doi.org/10.1007/978-3-030-61244-3_5
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