Cited by 191Topic ModelingLogic, Reasoning, and KnowledgeNatural Language Processing Techniques

The DOI matches its Crossref record; 40 of the 41 references it cites were found in a registry or an index.

Transformers as Soft Reasoners over Language

Open access
Clark, Peter, Tafjord, Oyvind, Richardson, Kyle·2020·Proceedings of the Twenty-Ninth International Joint Conference on Artificial Intelligence

Abstract

Beginning with McCarthy's Advice Taker (1959), AI has pursued the goal of providing a system with explicit, general knowledge and having the system reason over that knowledge. However, expressing the knowledge in a formal (logical or probabilistic) representation has been a major obstacle to this research. This paper investigates a modern approach to this problem where the facts and rules are provided as natural language sentences, thus bypassing a formal representation. We train transformers to reason (or emulate reasoning) over these sentences using synthetically generated data. Our models, that we call RuleTakers, provide the first empirical demonstration that this kind of soft reasoning over language is learnable, can achieve high (99%) accuracy, and generalizes to test data requiring substantially deeper chaining than seen during training (95%+ scores). We also demonstrate that the models transfer well to two hand-authored rulebases, and to rulebases paraphrased into more natural language. These findings are significant as it suggests a new role for transformers, namely as limited "soft theorem provers" operating over explicit theories in language. This in turn suggests new possibilities for explainability, correctability, and counterfactual reasoning in question-answering.

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Show all 41 references

Research works printed but not linked: 5

  1. [Abdelaziz et al. , 2020] Ibrahim Abdelaziz, Veronika Thost, Maxwell Crouse, and Achille Fokoue. An experimental study of formula embeddings for automated theorem proving in first-order logic. arXiv , 2002.00423, 2020. · arXiv
  2. [Richardson and Sabharwal, 2019] Kyle Richardson and Ashish Sabharwal. What does my qa model know? devising controlled probes using expert knowledge. ArXiv , abs/1912.13337, 2019. · arXiv
  3. [Saxton et al. , 2019] David Saxton, Edward Grefenstette, Felix Hill, and Pushmeet Kohli. Analysing mathematical reasoning abilities of neural models. In ICLR , 2019.
  4. [Selsam et al. , 2019] Daniel Selsam, Matthew Lamm, Benedikt B¨ unz, Percy Liang, Leonardo de Moura, and David L. Dill. Learning a SAT solver from single-bit supervision. In ICLR , 2019.
  5. [Talmor et al. , 2019] A. Talmor, Y. Elazar, Y. Goldberg, and J. Berant. oLMpics - on what language model pre-training captures. ArXiv , abs/1912.13283, 2019. · arXiv

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Metadata

Authors
Clark, P., Tafjord, O., & Richardson, K.
Affiliations
Allen Institute for Artificial Intelligence (US)
Venue
Proceedings of the Twenty-Ninth International Joint Conference on Artificial Intelligence
Published
2020-07
Pages
3882-3890
OpenAlex
W3006188107
Cited by
176
References
41
Citations by year
2026: 8 · 2025: 19 · 2024: 15 · 2023: 41 · 2022: 37 · 2021: 37 · 2020: 18
FWCI
12.69
Type
conference paper
Language
en
Open access
Locations
  • International Joint Conference on Artificial Intelligence (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Topic Modeling
  • Physical Sciences › Computer Science › Artificial Intelligence › Logic, Reasoning, and Knowledge
  • Physical Sciences › Computer Science › Artificial Intelligence › Natural Language Processing Techniques
Keywords
natural language reasoning, transformer models, synthetic training data, rule-based reasoning, knowledge representation, theorem proving, question answering, explainability, counterfactual reasoning, knowledge distillation

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