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