InstOptima: Evolutionary Multi-objective Instruction Optimization via Large Language Model-based Instruction Operators

Heng Yang, Ke Li

Abstract
Instruction-based language modeling has received significant attention in pretrained language models. However, the efficiency of instruction engineering remains low and hinders the development of instruction studies. Recent studies have focused on automating instruction generation, but they primarily aim to improve performance without considering other crucial objectives that impact instruction quality, such as instruction length and perplexity. Therefore, we propose a novel approach (i.e., InstOptima) that treats instruction generation as an evolutionary multi-objective optimization problem. In contrast to text edition-based methods, our approach utilizes a large language model (LLM) to simulate instruction operators, including mutation and crossover. Furthermore, we introduce an objective-guided mechanism for these operators, allowing the LLM to comprehend the objectives and enhance the quality of the generated instructions. Experimental results demonstrate improved fine-tuning performance and the generation of a diverse set of high-quality instructions.
Anthology ID:
2023.findings-emnlp.907
Volume:
Findings of the Association for Computational Linguistics: EMNLP 2023
Month:
December
Year:
2023
Address:
Singapore
Editors:
Houda Bouamor, Juan Pino, Kalika Bali
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
13593–13602
Language:
URL:
https://aclanthology.org/2023.findings-emnlp.907
DOI:
10.18653/v1/2023.findings-emnlp.907
Bibkey:
Cite (ACL):
Heng Yang and Ke Li. 2023. InstOptima: Evolutionary Multi-objective Instruction Optimization via Large Language Model-based Instruction Operators. In Findings of the Association for Computational Linguistics: EMNLP 2023, pages 13593–13602, Singapore. Association for Computational Linguistics.
Cite (Informal):
InstOptima: Evolutionary Multi-objective Instruction Optimization via Large Language Model-based Instruction Operators (Yang & Li, Findings 2023)
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PDF:
https://preview.aclanthology.org/ingest-acl-2023-videos/2023.findings-emnlp.907.pdf
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