Empowering Multi-step Reasoning across Languages via Program-Aided Language Models
Leonardo Ranaldi, Giulia Pucci, Barry Haddow, Alexandra Birch
Abstract
In-context learning methods are popular inference strategies where Large Language Models (LLMs) are elicited to solve a task using provided demonstrations without parameter updates. Among these approaches are the reasoning methods, best exemplified by Chain-of-Thought (CoT) and Program-Aided Language Models (PAL), which elicit LLMs to generate reasoning paths, thus promoting accuracy and attracting increasing attention. However, despite the success of these methods, the ability to deliver multi-step reasoning remains limited to a single language, making it challenging to generalize to other languages and hindering global development.In this work, we propose Cross-lingual Program-Aided Language Models (CrossPAL), a method for aligning reasoning programs across languages. In particular, our method delivers programs as intermediate reasoning steps in different languages through a double-step cross-lingual prompting mechanism inspired by the Program-Aided approach. In addition, we introduce Self-consistent CrossPAL (SCrossPAL) to ensemble different reasoning paths across languages. Our experimental evaluations show that our method significantly outperforms existing prompting methods, reducing the number of interactions and achieving state-of-the-art performance.- Anthology ID:
- 2024.emnlp-main.678
- Volume:
- Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing
- Month:
- November
- Year:
- 2024
- Address:
- Miami, Florida, USA
- Editors:
- Yaser Al-Onaizan, Mohit Bansal, Yun-Nung Chen
- Venue:
- EMNLP
- SIG:
- Publisher:
- Association for Computational Linguistics
- Note:
- Pages:
- 12171–12187
- Language:
- URL:
- https://preview.aclanthology.org/jlcl-multiple-ingestion/2024.emnlp-main.678/
- DOI:
- 10.18653/v1/2024.emnlp-main.678
- Cite (ACL):
- Leonardo Ranaldi, Giulia Pucci, Barry Haddow, and Alexandra Birch. 2024. Empowering Multi-step Reasoning across Languages via Program-Aided Language Models. In Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing, pages 12171–12187, Miami, Florida, USA. Association for Computational Linguistics.
- Cite (Informal):
- Empowering Multi-step Reasoning across Languages via Program-Aided Language Models (Ranaldi et al., EMNLP 2024)
- PDF:
- https://preview.aclanthology.org/jlcl-multiple-ingestion/2024.emnlp-main.678.pdf