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Releases: dice-group/Ontolearn

ontolearn 0.7.1

09 May 06:46
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ontolearn 0.7.1 is now released!

pip install -U ontolearn

Important Updates: ontolearn-webservice

ontolearn-webservice --path_knowledge_base KGs/Mutagenesis/mutagenesis.owl

ontolearn-webservice --endpoint_triple_store http://0.0.0.0:9080/sparql

What's Changed

Full Changelog: 0.7.0...0.7.1

ontolearn 0.7.0

07 Mar 16:18
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ontolearn 0.7.0 is now released!

Release Notes:

Drill is now available in Ontolearn:

You can import it as follows:

from ontolearn.learners import Drill

Examples:

  1. examples/concept_learning_evaluation.py
  2. examples/concept_learning_cv_evaluation.py

Tree-based DL Learner (tDL) is now available in Ontolearn:

You can import it as follows:

from ontolearn.learners import TDL

Examples:

  1. examples/concept_learning_evaluation.py
  2. examples/concept_learning_cv_evaluation.py
  3. examples/concept_learning_with_tdl_and_triplestore_kb.py

CLIP is now available in Ontolearn:

You can import it as follows:

from ontolearn.concept_learner import  CLIP

Examples:

  1. examples/concept_learning_cv_evaluation.py

Changes to KnowledgeBase class:

  • You can make type retrieval methods to return the type of OWLNamedIndividual for individuals which do not explicitly specify that type. You can do that by setting the argument include_implicit_individuals of class KnowledgeBase to True. By default it is False.

  • Ontology and reasoner can be accessed directly:

    • From kb.ontology() → To kb.ontology
    • From kb.reasoner() → To kb.reasoner
  • Added methods for triple retrieval:

    • abox → returns all related Abox axioms of a given individual, list of individuals or None (all Abox axioms).
    • tbox → method returns all related Tbox axioms of a given concept, data property, object property, a list of them or None (all Tbox axioms)
    • triples → returns all triples of the ontology.

    Return type in 3 formats defined by the mode argument which accepts the following strings:
    1) 'native' -> triples are represented as tuples of owlapy objects.
    2) 'iri' -> triples are represented as tuples of IRIs as strings.
    3) 'axiom' -> triples are represented as owlapy axioms.

  • New property methods to retrieve classes/properties:

    • concepts
    • object_properties
    • object_properties
  • Removed triplestore logic (as well as from OWLOntology_Owlready2 and OWLReasoner_Owlready2). It is now moved to ontolearn.triple_store (described below).

Check everything here


Triple Store Knowledge Base:

Added TripleStoreOntology, TripleStoreReasoner and TripleStoreKnowledgeBase.
TripleStoreKnowledgeBase can be initialized using just an SPARQL endpoint and it can be used instead of the KnowledgeBase
to execute a concept learner. All dataset queries are made using SPARQL and are directed to the provided endpoint.

To import:

from ontolearn.triple_store import TripleStoreOntology, TripleStoreReasoner, TripleStoreKnowledgeBase

For more, you can visit the guide in our documentation here , check the API docs and see the examples listed below.

Examples:

  1. examples/concept_learning_via_triplestore_example.py
  2. examples/concept_learning_with_tdl_and_triplestore_kb.py

Documentation and more:

  • At README.md you can find the Benchmark Results which displays the performance of all our learners.

  • Documentation has been updated to the latest changes. You can always access the up-to-date documentation here.

  • Ontosample is now integrated into Ontolearn. We have also added a guide on how to use it as well as an example.

    Note: ontosample is not part of the default dependencies. To get it you should either install it directly or use: pip install ontolearn[full].


Changes on dependencies:

  • We have added some new dependencies and increased the minimum required version for some of them.
  • Some dependencies are made optional. You can now install all of them or just the minimum required ones.
    • pip install ontolearn[min] → the default one when you execute pip install ontolearn
    • pip install ontolearn[full] → to install the extra dependenices.
      You can check them here.

Bug Fixes and others:

  • Fixed a bug where using the same EvoLearner model to fit more than one learning problem would cause quality drop.
  • Added learning problem generator as Python module
  • Other minor changes that in case you are interested, you can check the PRs comments.

As always you can upgrade with pip:

pip install -U ontolearn

Brought to you by Ontolearn Team.

ontolearn 0.6.1

03 Dec 14:10
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ontolearn 0.6.1

We're happy to announce the 0.6.1 release.

You can upgrade with pip as usual:

pip install -U ontolearn

ontolearn 0.5.4

17 Aug 09:46
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ontolearn 0.5.4

We're happy to announce the 0.5.4 release.

You can upgrade with pip as usual:

pip install -U ontolearn

ontolearn 0.5.3

10 Feb 10:07
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ontolearn 0.5.3

We're happy to announce the 0.5.3 release.

You can upgrade with pip as usual:

pip install -U ontolearn

First Release of Ontolearn

17 Oct 06:50
084d520
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Features

  • Properly check domain inclusion in the ConceptGenerator
  • Add Top-Level CNF/DNF conversion

Fixes

  • Fix OCEL (still not equivalent of the DL-Learner implementation)
  • Fix a bug in the DLSyntaxParser to correctly parse Thing/Nothing
  • Multiple fits for EvoLearner on datasets with data properties
  • Correctly filter super properties in the OWLReasoner_Owlready2

Maintenance

  • Use closed world behaviour for negations per default (FastInstanceChecker)

Todos for the next release