A Python porting of the Fuzzy Description Language (FuzzyDL) and the Fuzzy OWL 2 framework, for representing fuzzy logic within description logic and for mapping a knowledge base represented in FuzzyDL to a Fuzzy OWL 2 construct in RDF/XML format.

📖 Full documentation: fuzzy-dl-owl2.readthedocs.io

Features:

• Object-oriented representation of Fuzzy Description Logic elements
• Object-oriented representation of Fuzzy OWL 2 elements
• Mapping from FuzzyDL to Fuzzy OWL 2
• Mapping from Fuzzy OWL 2 to FuzzyDL
• Reasoning in FuzzyDL

pip install fuzzy-dl-owl2

from fuzzy_dl_owl2.fuzzydl.parser import DLParserFast as DLParser

DLParser.main("./example.fdl")

See the Usage guide for reasoning, querying, and FuzzyDL ⇄ Fuzzy OWL 2 conversion examples.

The full reference lives on Read the Docs:

• Installation & configuration — CONFIG.ini / .env, MILP solver setup (Gurobi, CPLEX, CBC, GLPK, HiGHS, MIP), and the optional compiled fast parser.
• Grammar — the full FuzzyDL (.fdl) language.
• Fuzzy concepts, queries, modifiers & degrees.
• Fuzzy OWL 2 XML annotations and the reasoner architecture.

The dl-examples directory contains sample knowledge bases written in the FuzzyDL language.

The test directory contains the unittest files; test_suite.py is the full suite. The knowledge bases used by the tests are in examples/TestSuite.

This project is licensed under the Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0).