Inductive Learning of Logical Theories with LLMs: An Expressivity-Graded Analysis

Fuente: arXiv
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Autores principales: Gandarela, João Pedro, Carvalho, Danilo S., Freitas, André
Formato: Preprint
Publicado: 2024
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author Gandarela, João Pedro
Carvalho, Danilo S.
Freitas, André
author_facet Gandarela, João Pedro
Carvalho, Danilo S.
Freitas, André
contents 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 LLMs.
format Preprint
id arxiv_https___arxiv_org_abs_2408_16779
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Inductive Learning of Logical Theories with LLMs: An Expressivity-Graded Analysis
Gandarela, João Pedro
Carvalho, Danilo S.
Freitas, André
Computation and Language
Artificial Intelligence
Logic in Computer Science
I.2.7
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 LLMs.
title Inductive Learning of Logical Theories with LLMs: An Expressivity-Graded Analysis
topic Computation and Language
Artificial Intelligence
Logic in Computer Science
I.2.7
url https://arxiv.org/abs/2408.16779