Characterisation Methodology Domain Ontology (CHAMEO)

The Characterisation Methodology Domain Ontology (CHAMEO) is a domain ontology for materials characterization, representing the evolution of the CHADA template in an ontological form. CHAMEO enables the generation of FAIR documentation for characterization experiments and serves as a foundation for the development of technique-specific and application-specific ontologies in the materials characterization domain. The ontology provides a structured vocabulary for describing experimental setups, measurement techniques, sample properties, data acquisition, and analysis workflows. CHAMEO supports semantic annotation of characterization data, facilitating interoperability, data integration, and advanced analytics across research projects and digital platforms. By providing a standardized framework, CHAMEO enhances reproducibility, knowledge sharing, and cross-laboratory comparison in materials science. The ontology is actively maintained and extended to incorporate new characterization methods, standards, and community requirements.

Example Usage: Annotate a materials characterization experiment with CHAMEO terms to specify the measurement technique (e.g., X-ray diffraction), sample preparation, instrument configuration, and data analysis workflow, enabling semantic search and integration with materials databases.

Metrics & Statistics

Graph Statistics

Total Nodes

802

Total Edges

1526

Root Nodes

29

Leaf Nodes

459
Knowledge Coverage Statistics

Classes

203

Individuals

0

Properties

52
Hierarchical Metrics

Maximum Depth

12

Minimum Depth

0

Average Depth

4.25

Depth Variance

8.29
Breadth Metrics

Maximum Breadth

45

Minimum Breadth

2

Average Breadth

19.92

Breadth Variance

154.69
LLMs4OL Dataset Statistics

Term Types

0

Taxonomic Relations

195

Non-taxonomic Relations

2

Average Terms per Type

0.00

Usage Example

Use the following code to import this ontology programmatically:

from ontolearner.ontology import CHAMEO

ontology = CHAMEO()
ontology.load("path/to/CHAMEO-ontology.ttl")

# 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