ARTFEED — Contemporary Art Intelligence

Baobab: Compiling OWL 2 DL Ontologies into Differentiable Circuits for Neuro-Symbolic Learning

ai-technology · 2026-08-19

Recent research published on arXiv reveals Baobab, a novel technique designed to convert OWL 2 DL ontologies into differentiable circuits optimized for neuro-symbolic learning. Addressing the inherent challenges of continuous embeddings, Baobab transforms SROIQ ontologies with a finite ABox into Sentential Decision Diagrams (SDDs). This methodology employs a consequence-based approach to enhance the logical framework, allowing for evidence-conditioned weighted model counting. Experimental results demonstrate that a convolutional neural network can effectively learn to interpret MNIST digits while adhering to specified ontological constraints. The detailed findings are accessible in the paper, uniquely identified as arXiv:2608.17741.

Key facts

  • Baobab compiles OWL 2 DL ontologies into Sentential Decision Diagrams (SDDs).
  • OWL 2 DL is based on the description logic SROIQ.
  • Existing neuro-symbolic learners either embed ontologies in continuous space or restrict to EL++.
  • Baobab saturates a propositional core using a consequence-based calculus.
  • It instantiates nominals, number restrictions, and role axioms over the active domain.
  • The SDD enables evidence-conditioned weighted model counting for training perception networks.
  • A CNN learns to read MNIST digits under partial ABox supervision with Baobab.
  • The paper is identified as arXiv:2608.17741.

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