Thesaurus alignment for linked data publishing DC 2011

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Outline: Introduction Problem Different Methodologies Thesauri aligned with AGROVOC Results, Human Evaluation and Analysis AGROVOC Linked Open Data Conclusions

Text of Thesaurus alignment for linked data publishing DC 2011

  • 1.Thesaurus Alignment for Linked Data Publishing
    Dr. Ahsan Morshed
    Office of Knowledge Exchange, Research and Extension
    Food and Agriculture Organization of the UN

2. Outline
Introduction
Problem
Different Methodologies
Thesauri aligned with AGROVOC
Results, Human Evaluation and Analysis
AGROVOC Linked Open Data
Conclusions
3. Introduction
Provide the better links to the AGRIS and other FAO and agricultural informationresources tothe rest of world.
a pre-requisite for the OpenAGRIS.
Indexing bootstrapby using the AgroTagger.
4. Problems
Challenges of matching
Structure
Semantic
Concept labels
Spelling adaption by the vocabularies
5. Different methodologies
Syntacticbase matching
Structure base matching
Background knowledge base matching
6. AGROVOC
7. AGROVOC
A multilingual agricultural vocabulary organized as concept scheme in more than 20 languages
Covers agriculture, forestry, fisheries and related themes (food security, land use, environment, etc.)
Organized in sub-vocabularies, e.g. chemicals, fisheries terms, scientific/common names of organisms
Maintained by a global community (e.g. librarians, terminologists, information managers) using VocBench
8. AGROVOC SKOS Model
9. Matching Process
Key features:

  • Exact Matches

10. Concept-to-Concept mapping 11. Multilingual Evaluation 12. Threshold value 0 to 1 range 13. Matching output in the NT format.