diff --git a/.gitignore b/.gitignore
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..b0a5122553a10c652ad2318a3e9e2df03e245638 100644
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1 @@
+env/*
diff --git a/examples/compare_ontologies.py b/examples/compare_ontologies.py
new file mode 100644
index 0000000000000000000000000000000000000000..fe37db47d10c9fbfd96827388506c0ebcea4b283
--- /dev/null
+++ b/examples/compare_ontologies.py
@@ -0,0 +1,85 @@
+#!/usr/bin/python3.10
+# -*-coding:Utf-8 -*
+
+#==============================================================================
+# ontoScorer: Script to compare two ontologies and calculate metrics
+#------------------------------------------------------------------------------
+# This script loads two OWL ontologies from local files, extracts classes from
+# these ontologies and compares them. It then calculates precision, recall, and
+# F1 score, which are commonly used metrics in information retrieval to assess
+# the quality of a retrieval system. The paths to the ontology files are
+# specified directly in the script.
+#==============================================================================
+
+from rdflib import Graph, OWL
+from rdflib.namespace import split_uri
+from sklearn.metrics import precision_score, recall_score, f1_score
+
+# Define the path to the data folder
+DATA_FOLDER_PATH = "data"
+
+# Define paths to the ontology files
+REFERENCE_ONTOLOGY_PATH = f"{DATA_FOLDER_PATH}/reference_ontology.ttl"
+GENERATED_ONTOLOGY_PATH = f"{DATA_FOLDER_PATH}/generated_ontology.ttl"
+
+
+#==============================================================================
+# Methods to manipulate ontologies and calculate the metrics
+#==============================================================================
+
+def load_ontology(path):
+ g = Graph()
+ g.parse(path, format="ttl")
+ return g
+
+
+def get_classes(ontology, ontology_path):
+ classes = set()
+ triplets_count = 0
+ for s, p, o in ontology.triples((None, None, None)):
+ triplets_count += 1
+ if o == OWL.Class:
+ _, class_name = split_uri(s)
+ classes.add(class_name)
+ print(f"Ontology analyzed: {ontology_path}")
+ print(f"Number of classes found: {len(classes)}")
+ print(f"Number of triplets analyzed: {triplets_count}")
+ return classes
+
+
+def calculate_metrics(reference_classes, generated_classes):
+ all_classes = reference_classes.union(generated_classes)
+ y_true = [1 if cls in reference_classes else 0 for cls in all_classes]
+ y_pred = [1 if cls in generated_classes else 0 for cls in all_classes]
+
+ precision = precision_score(y_true, y_pred)
+ recall = recall_score(y_true, y_pred)
+ f1 = f1_score(y_true, y_pred)
+
+ return precision, recall, f1
+
+
+#==============================================================================
+# Main Method
+#==============================================================================
+
+def main():
+ # Load ontologies
+ ref_ontology = load_ontology(REFERENCE_ONTOLOGY_PATH)
+ gen_ontology = load_ontology(GENERATED_ONTOLOGY_PATH)
+
+ # Extract classes
+ ref_classes = get_classes(ref_ontology, REFERENCE_ONTOLOGY_PATH)
+ gen_classes = get_classes(gen_ontology, GENERATED_ONTOLOGY_PATH)
+
+ # Calculate metrics
+ precision, recall, f1 = calculate_metrics(ref_classes, gen_classes)
+
+ # Print results
+ print(f"Precision: {precision}")
+ print(f"Recall: {recall}")
+ print(f"F1 Score: {f1}")
+
+if __name__ == "__main__":
+ main()
+
diff --git a/examples/data/generated_ontology.ttl b/examples/data/generated_ontology.ttl
new file mode 100644
index 0000000000000000000000000000000000000000..2b5ee473b9aaafcdab815b06788bd4a9aa435474
--- /dev/null
+++ b/examples/data/generated_ontology.ttl
@@ -0,0 +1,104 @@
+@prefix ns1: <https://tenet.tetras-libre.fr/base-ontology#> .
+@prefix owl: <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+
+<https://tenet.tetras-libre.fr/extract-result#SolarSystem> a owl:Individual,
+ <https://tenet.tetras-libre.fr/extract-result#system>,
+ <https://tenet.tetras-libre.fr/extract-result#system-hasPart-object>,
+ <https://tenet.tetras-libre.fr/extract-result#system-hasPart-sun> ;
+ rdfs:label "SolarSystem" ;
+ ns1:fromStructure "unknown" .
+
+<https://tenet.tetras-libre.fr/extract-result#direct> a owl:ObjectProperty ;
+ rdfs:label "direct" ;
+ rdfs:subPropertyOf ns1:Out_ObjectProperty ;
+ ns1:fromStructure "unknown" .
+
+<https://tenet.tetras-libre.fr/extract-result#gravitation-bind-system> a owl:Class ;
+ rdfs:subClassOf [ a owl:Restriction ;
+ owl:onProperty <https://tenet.tetras-libre.fr/extract-result#bind> ;
+ owl:someValuesFrom <https://tenet.tetras-libre.fr/extract-result#system> ],
+ <https://tenet.tetras-libre.fr/extract-result#gravitation> ;
+ ns1:fromStructure "unknown" .
+
+<https://tenet.tetras-libre.fr/extract-result#hasManner> a owl:ObjectProperty ;
+ rdfs:label "hasManner" ;
+ rdfs:subPropertyOf ns1:Out_ObjectProperty ;
+ ns1:fromStructure "unknown" .
+
+<https://tenet.tetras-libre.fr/extract-result#not-direct> a owl:ObjectProperty ;
+ rdfs:subPropertyOf ns1:Out_ObjectProperty ;
+ ns1:fromStructure "unknown" .
+
+<https://tenet.tetras-libre.fr/extract-result#object-orbit-hasManner-direct-sun> a owl:Class ;
+ rdfs:subClassOf [ a owl:Restriction ;
+ owl:onProperty <https://tenet.tetras-libre.fr/extract-result#orbit-hasManner-direct> ;
+ owl:someValuesFrom <https://tenet.tetras-libre.fr/extract-result#sun> ],
+ <https://tenet.tetras-libre.fr/extract-result#object> ;
+ ns1:fromStructure "unknown" .
+
+<https://tenet.tetras-libre.fr/extract-result#object-orbit-hasManner-not-direct-sun> a owl:Class ;
+ rdfs:subClassOf [ a owl:Restriction ;
+ owl:onProperty <https://tenet.tetras-libre.fr/extract-result#orbit-hasManner-not-direct> ;
+ owl:someValuesFrom <https://tenet.tetras-libre.fr/extract-result#sun> ],
+ <https://tenet.tetras-libre.fr/extract-result#object> ;
+ ns1:fromStructure "unknown" .
+
+<https://tenet.tetras-libre.fr/extract-result#bind> a owl:ObjectProperty ;
+ rdfs:label "bind" ;
+ rdfs:subPropertyOf ns1:Out_ObjectProperty ;
+ ns1:fromStructure "unknown" .
+
+<https://tenet.tetras-libre.fr/extract-result#gravitation> a owl:Class ;
+ rdfs:label "gravitation" ;
+ rdfs:subClassOf ns1:Entity ;
+ ns1:fromStructure "unknown" .
+
+<https://tenet.tetras-libre.fr/extract-result#orbit-hasManner-direct> a owl:ObjectProperty ;
+ rdfs:subPropertyOf <https://tenet.tetras-libre.fr/extract-result#orbit> ;
+ ns1:fromStructure "unknown" .
+
+<https://tenet.tetras-libre.fr/extract-result#orbit-hasManner-not-direct> a owl:ObjectProperty ;
+ rdfs:subPropertyOf <https://tenet.tetras-libre.fr/extract-result#orbit> ;
+ ns1:fromStructure "unknown" .
+
+<https://tenet.tetras-libre.fr/extract-result#system-hasPart-object> a owl:Class ;
+ rdfs:subClassOf [ a owl:Restriction ;
+ owl:onProperty <https://tenet.tetras-libre.fr/extract-result#hasPart> ;
+ owl:someValuesFrom <https://tenet.tetras-libre.fr/extract-result#object> ],
+ <https://tenet.tetras-libre.fr/extract-result#system> ;
+ ns1:fromStructure "unknown" .
+
+<https://tenet.tetras-libre.fr/extract-result#system-hasPart-sun> a owl:Class ;
+ rdfs:subClassOf [ a owl:Restriction ;
+ owl:onProperty <https://tenet.tetras-libre.fr/extract-result#hasPart> ;
+ owl:someValuesFrom <https://tenet.tetras-libre.fr/extract-result#sun> ],
+ <https://tenet.tetras-libre.fr/extract-result#system> ;
+ ns1:fromStructure "unknown" .
+
+<https://tenet.tetras-libre.fr/extract-result#hasPart> a owl:ObjectProperty ;
+ rdfs:label "hasPart" ;
+ rdfs:subPropertyOf ns1:Out_ObjectProperty ;
+ ns1:fromStructure "unknown" .
+
+<https://tenet.tetras-libre.fr/extract-result#orbit> a owl:ObjectProperty ;
+ rdfs:label "orbit" ;
+ rdfs:subPropertyOf ns1:Out_ObjectProperty ;
+ ns1:fromStructure "unknown" .
+
+<https://tenet.tetras-libre.fr/extract-result#object> a owl:Class ;
+ rdfs:label "object" ;
+ rdfs:subClassOf ns1:Entity ;
+ ns1:fromStructure "unknown" .
+
+<https://tenet.tetras-libre.fr/extract-result#sun> a owl:Class ;
+ rdfs:label "sun" ;
+ rdfs:subClassOf ns1:Entity ;
+ ns1:fromStructure "unknown" .
+
+<https://tenet.tetras-libre.fr/extract-result#system> a owl:Class ;
+ rdfs:label "system" ;
+ rdfs:subClassOf ns1:Entity,
+ ns1:Undetermined_Thing ;
+ ns1:fromStructure "unknown" .
+
diff --git a/examples/data/reference_ontology.ttl b/examples/data/reference_ontology.ttl
new file mode 100644
index 0000000000000000000000000000000000000000..2b9713297e6616b251f740fc10991dc2f265c5c4
--- /dev/null
+++ b/examples/data/reference_ontology.ttl
@@ -0,0 +1,109 @@
+@prefix base: <https://reference.tetras-libre.fr/base-ontology#> .
+@prefix owl: <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix result: <https://reference.tetras-libre.fr/expected-result#> .
+
+result:SolarSystem a owl:Individual,
+ result:system,
+ result:system-isBindBy-gravitation,
+ result:system-hasPart-object-orbit-sun,
+ result:system-hasPart-sun ;
+ rdfs:label "SolarSystem" .
+
+result:direct a owl:ObjectProperty ;
+ rdfs:label "direct" ;
+ rdfs:subPropertyOf base:Out_ObjectProperty .
+
+result:gravitation-bind-system a owl:Class ;
+ rdfs:subClassOf [ a owl:Restriction ;
+ owl:onProperty result:bind ;
+ owl:someValuesFrom result:system ],
+ result:gravitation .
+
+result:hasManner a owl:ObjectProperty ;
+ rdfs:label "hasManner" ;
+ rdfs:subPropertyOf base:Out_ObjectProperty .
+
+result:not-direct a owl:ObjectProperty ;
+ rdfs:subPropertyOf base:Out_ObjectProperty .
+
+result:object-orbit-sun a owl:Class ;
+ rdfs:subClassOf [ a owl:Restriction ;
+ owl:onProperty result:orbit ;
+ owl:someValuesFrom result:sun ],
+ result:object .
+
+result:object-orbit-hasManner-direct-sun a owl:Class ;
+ rdfs:subClassOf [ a owl:Restriction ;
+ owl:onProperty result:orbit-hasManner-direct ;
+ owl:someValuesFrom result:sun ],
+ result:object-orbit-sun .
+
+result:object-orbit-hasManner-not-direct-sun a owl:Class ;
+ rdfs:subClassOf [ a owl:Restriction ;
+ owl:onProperty result:orbit-hasManner-not-direct ;
+ owl:someValuesFrom result:sun ],
+ result:object-orbit-sun .
+
+result:gravitation a owl:Class ;
+ rdfs:label "gravitation" ;
+ rdfs:subClassOf base:Entity .
+
+result:system-isBindBy-gravitation a owl:Class ;
+ rdfs:subClassOf [ a owl:Restriction ;
+ owl:onProperty result:isBindBy ;
+ owl:someValuesFrom result:gravitation ],
+ result:system .
+
+result:system-hasPart-object a owl:Class ;
+ rdfs:subClassOf [ a owl:Restriction ;
+ owl:onProperty result:hasPart ;
+ owl:someValuesFrom result:object ],
+ result:system .
+
+result:system-hasPart-object-orbit-sun a owl:Class ;
+ rdfs:subClassOf [ a owl:Restriction ;
+ owl:onProperty result:hasPart ;
+ owl:someValuesFrom result:object-orbit-sun ],
+ result:system-hasPart-object .
+
+result:system-hasPart-sun a owl:Class ;
+ rdfs:subClassOf [ a owl:Restriction ;
+ owl:onProperty result:hasPart ;
+ owl:someValuesFrom result:sun ],
+ result:system .
+
+result:bind a owl:ObjectProperty ;
+ rdfs:label "bind" ;
+ rdfs:subPropertyOf base:Out_ObjectProperty .
+
+result:isBindBy owl:inverseOf result:bind ;
+ rdfs:label "isBindBy" ;
+ rdfs:subPropertyOf base:Out_ObjectProperty .
+
+result:orbit a owl:ObjectProperty ;
+ rdfs:label "orbit" ;
+ rdfs:subPropertyOf base:Out_ObjectProperty .
+
+result:orbit-hasManner-direct a owl:ObjectProperty ;
+ rdfs:subPropertyOf result:orbit .
+
+result:orbit-hasManner-not-direct a owl:ObjectProperty ;
+ rdfs:subPropertyOf result:orbit .
+
+result:hasPart a owl:ObjectProperty ;
+ rdfs:label "hasPart" ;
+ rdfs:subPropertyOf base:Out_ObjectProperty .
+
+result:object a owl:Class ;
+ rdfs:label "object" ;
+ rdfs:subClassOf base:Entity .
+
+result:system a owl:Class ;
+ rdfs:label "system" ;
+ rdfs:subClassOf base:Entity.
+
+result:sun a owl:Class ;
+ rdfs:label "sun" ;
+ rdfs:subClassOf base:Entity .
+
diff --git a/examples/example.py b/examples/example.py
deleted file mode 100644
index 4415d78eaa2ad835966f1b350fdefbdf3e9d9d61..0000000000000000000000000000000000000000
--- a/examples/example.py
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/usr/bin/python3.10
-# -*-coding:Utf-8 -*
-
-#==============================================================================
-# ontoScorer: [brief description of the module]
-#------------------------------------------------------------------------------
-# Detailed module description, if needed
-#==============================================================================
-
-# TODO
diff --git a/requirements.txt b/requirements.txt
index f4555155474931bfd1194db3acf9f00b37783cbb..961774170971eaec5a8f937e9b5fa8127097285a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,2 @@
rdflib
+scikit-learn