A Category-Theoretic Approach to Neural-Symbolic Task Planning with Bidirectional Search

Shuhui Qu, Jie Wang, Kincho Law


Abstract
We introduce a Neural-Symbolic Task Planning framework integrating Large Language Model (LLM) decomposition with category-theoretic verification for resource-aware, temporally consistent planning. Our approach represents states as objects and valid operations as morphisms in a categorical framework, ensuring constraint satisfaction through mathematical pullbacks. We employ bidirectional search that simultaneously expands from initial and goal states, guided by a learned planning distance function that efficiently prunes infeasible paths. Empirical evaluations across three planning domains demonstrate that our method improves completion rates by up to 6.6% and action accuracy by 9.1%, while eliminating resource violations compared to the existing baselines. These results highlight the synergy between LLM-based operator generation and category-theoretic verification for reliable planning in domains requiring both resource-awareness and temporal consistency.
Anthology ID:
2025.findings-emnlp.1157
Volume:
Findings of the Association for Computational Linguistics: EMNLP 2025
Month:
November
Year:
2025
Address:
Suzhou, China
Editors:
Christos Christodoulopoulos, Tanmoy Chakraborty, Carolyn Rose, Violet Peng
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
21201–21225
Language:
URL:
https://preview.aclanthology.org/author-page-yu-wang-polytechnic/2025.findings-emnlp.1157/
DOI:
10.18653/v1/2025.findings-emnlp.1157
Bibkey:
Cite (ACL):
Shuhui Qu, Jie Wang, and Kincho Law. 2025. A Category-Theoretic Approach to Neural-Symbolic Task Planning with Bidirectional Search. In Findings of the Association for Computational Linguistics: EMNLP 2025, pages 21201–21225, Suzhou, China. Association for Computational Linguistics.
Cite (Informal):
A Category-Theoretic Approach to Neural-Symbolic Task Planning with Bidirectional Search (Qu et al., Findings 2025)
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https://preview.aclanthology.org/author-page-yu-wang-polytechnic/2025.findings-emnlp.1157.pdf
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