Neural-symbolic (NeSy) AI has gained a lot of popularity by enhancing learning models with explicit reasoning capabilities. Both new systems and new benchmarks are constantly introduced and used to evaluate learning and reasoning skills. The large variety of systems and benchmarks, however, makes it difficult to establish a fair comparison among the various frameworks, let alone a unifying set of benchmarking criteria. This paper analyzes the state-of-the-art in benchmarking NeSy systems, studies its limitations, and proposes ways to overcome them. We categorize popular neural-symbolic frameworks into three groups: model-theoretic, proof-theoretic fuzzy, and proof-theoretic probabilistic systems. We show how these three categories have distinct strengths and weaknesses, and how this is reflected in the type of tasks and benchmarks to which they are applied.

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Benchmarking in Neuro-Symbolic AI

  • Robin Manhaeve,
  • Francesco Giannini,
  • Mehdi Ali,
  • Damiano Azzolini,
  • Alice Bizzarri,
  • Andrea Borghesi,
  • Samuele Bortolotti,
  • Luc De Raedt,
  • Devendra Dhami,
  • Michelangelo Diligenti,
  • Sebastijan Dumančić,
  • Boi Faltings,
  • Elisabetta Gentili,
  • Alfonso Gerevini,
  • Marco Gori,
  • Tias Guns,
  • Martin Homola,
  • Kristian Kersting,
  • Jens Lehmann,
  • Michele Lombardi,
  • Luca Lorello,
  • Emanuele Marconato,
  • Stefano Melacci,
  • Andrea Passerini,
  • Debjit Paul,
  • Fabrizio Riguzzi,
  • Stefano Teso,
  • Neil Yorke-Smith,
  • Marco Lippi

摘要

Neural-symbolic (NeSy) AI has gained a lot of popularity by enhancing learning models with explicit reasoning capabilities. Both new systems and new benchmarks are constantly introduced and used to evaluate learning and reasoning skills. The large variety of systems and benchmarks, however, makes it difficult to establish a fair comparison among the various frameworks, let alone a unifying set of benchmarking criteria. This paper analyzes the state-of-the-art in benchmarking NeSy systems, studies its limitations, and proposes ways to overcome them. We categorize popular neural-symbolic frameworks into three groups: model-theoretic, proof-theoretic fuzzy, and proof-theoretic probabilistic systems. We show how these three categories have distinct strengths and weaknesses, and how this is reflected in the type of tasks and benchmarks to which they are applied.