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The Elementary Multiperspective Material Ontology (EMMO) |
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Overview |
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-------- |
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The Elementary Multiperspective Material Ontology (EMMO) is the result of a multidisciplinary effort within the EMMC, |
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aimed at the development of a standard representational ontology framework based on current materials modelling |
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and characterization knowledge. Instead of starting from general upper level concepts, as done by other ontologies, |
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the EMMO development started from the very bottom level, using the actual picture of the physical world coming |
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from applied sciences, and in particular from physics and material sciences. |
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:Domain: Materials Science and Engineering |
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:Category: Materials Modelling |
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:Current Version: 1.0.0-rc3 |
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:Last Updated: 2024-03 |
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:Creator: European Materials Modelling Council (EMMC) |
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:License: Creative Commons 4.0 |
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:Format: OWL |
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:Download: `The Elementary Multiperspective Material Ontology (EMMO) Homepage <https://emmo-repo.github.io/>`_ |
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Graph Metrics |
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- **Total Nodes**: 13613 |
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- **Total Edges**: 30349 |
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- **Root Nodes**: 281 |
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- **Leaf Nodes**: 7742 |
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Knowledge coverage |
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- Classes: 2448 |
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- Individuals: 2 |
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- Properties: 181 |
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Hierarchical metrics |
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-------------------- |
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- **Maximum Depth**: 41 |
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- **Minimum Depth**: 0 |
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- **Average Depth**: 8.16 |
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- **Depth Variance**: 107.87 |
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Breadth metrics |
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- **Maximum Breadth**: 552 |
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- **Minimum Breadth**: 1 |
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- **Average Breadth**: 67.24 |
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- **Breadth Variance**: 14619.32 |
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Dataset Statistics |
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Generated Benchmarks: |
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- **Term Types**: 2 |
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- **Taxonomic Relations**: 16281 |
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- **Non-taxonomic Relations**: 52 |
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- **Average Terms per Type**: 2.00 |
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Usage Example |
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.. code-block:: python |
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from ontolearner.ontology import EMMO |
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# Initialize and load ontology |
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ontology = EMMO() |
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ontology.load("path/to/ontology.OWL") |
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# Extract datasets |
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data = ontology.extract() |
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# Access specific relations |
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term_types = data.term_typings |
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taxonomic_relations = data.type_taxonomies |
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non_taxonomic_relations = data.type_non_taxonomic_relations |
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