Learn Like Humans: Use Meta-cognitive Reflection for Efficient Self-Improvement

Xinmeng Hou, Bohao Qu, Wuqi Wang, Peiliang Gong, Qing Guo, Yang Liu


Abstract
While Large Language Models (LLMs) enable complex autonomous behavior, current agents remain constrained by static, human-designed prompts that limit adaptability. Existing self-improving frameworks attempt to bridge this gap but typically rely on inefficient, multi-turn recursive loops that incur high computational costs. To address this, we propose Metacognitive Agent with Reflective Self-improvement (MARS), a framework that achieves efficient self-evolution within a single recurrence cycle. Inspired by educational psychology, MARS mimics human learning by integrating principle-based reflection (abstracting normative rules to avoid errors) and procedural reflection (deriving step-by-step strategies for success). By synthesizing these insights into optimized instructions, MARS allows agents to systematically refine their reasoning logic without continuous online feedback. Extensive experiments on six benchmarks demonstrate that MARS outperforms state-of-the-art self-evolving systems while significantly reducing computational overhead. Code is available at https://github.com/Paparare/MARS/tree/main
Anthology ID:
2026.acl-long.1329
Volume:
Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
Month:
July
Year:
2026
Address:
San Diego, California, United States
Editors:
Maria Liakata, Viviane P. Moreira, Jiajun Zhang, David Jurgens
Venue:
ACL
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Publisher:
Association for Computational Linguistics
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Pages:
28802–28824
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URL:
https://preview.aclanthology.org/ingest-acl/2026.acl-long.1329/
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Cite (ACL):
Xinmeng Hou, Bohao Qu, Wuqi Wang, Peiliang Gong, Qing Guo, and Yang Liu. 2026. Learn Like Humans: Use Meta-cognitive Reflection for Efficient Self-Improvement. In Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), pages 28802–28824, San Diego, California, United States. Association for Computational Linguistics.
Cite (Informal):
Learn Like Humans: Use Meta-cognitive Reflection for Efficient Self-Improvement (Hou et al., ACL 2026)
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PDF:
https://preview.aclanthology.org/ingest-acl/2026.acl-long.1329.pdf
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