Inductive Learning of Logical Theories with LLMs: A Complexity-graded Analysis

• URL: http://arxiv.org/abs/2408.16779v1
• Date: Thu, 15 Aug 2024 16:41:00 GMT
• Title: Inductive Learning of Logical Theories with LLMs: A Complexity-graded Analysis
• Authors: João Pedro Gandarela, Danilo S. Carvalho, André Freitas,
• Abstract summary: This work presents a novel systematic methodology to analyse the capabilities and limitations of Large Language Models (LLMs) The analysis is complexity-graded w.r.t. rule dependency structure, allowing quantification of specific inference challenges on LLM performance.
• Score: 9.865771016218549
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: This work presents a novel systematic methodology to analyse the capabilities and limitations of Large Language Models (LLMs) with feedback from a formal inference engine, on logic theory induction. The analysis is complexity-graded w.r.t. rule dependency structure, allowing quantification of specific inference challenges on LLM performance. Integrating LLMs with formal methods is a promising frontier in the Natural Language Processing field, as an important avenue for improving model inference control and explainability. In particular, inductive learning over complex sets of facts and rules, poses unique challenges for current autoregressive models, as they lack explicit symbolic grounding. While they can be complemented by formal systems, the properties delivered by LLMs regarding inductive learning, are not well understood and quantified. Empirical results indicate that the largest LLMs can achieve competitive results against a SOTA Inductive Logic Programming (ILP) system baseline, but also that tracking long predicate relationship chains is a more difficult obstacle than theory complexity for the LLMs.

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