{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,9]],"date-time":"2026-04-09T14:26:56Z","timestamp":1775744816933,"version":"3.50.1"},"publisher-location":"California","reference-count":0,"publisher":"International Joint Conferences on Artificial Intelligence Organization","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,9]]},"abstract":"<jats:p>Continual reinforcement learning (CRL) empowers RL agents with the ability to learn a sequence of tasks, accumulating knowledge learned in the past and using the knowledge for problemsolving or future task learning. However, existing methods often focus on transferring fine-grained knowledge across similar tasks, which neglects the multi-granularity structure of human cognitive control, resulting in insufficient knowledge transfer across diverse tasks. To enhance coarse-grained knowledge transfer, we propose a novel framework called MT-Core (as shorthand for Multi-granularity knowledge Transfer for Continual reinforcement learning). MT-Core has a key characteristic of multi-granularity policy learning: 1) a coarsegrained policy formulation for utilizing the powerful reasoning ability of the large language model (LLM) to set goals, and 2) a fine-grained policy learning through RL which is oriented by the goals. We also construct a new policy library (knowledge base) to store policies that can be retrieved for multi-granularity knowledge transfer. Experimental results demonstrate the superiority of the proposed MT-Core in handling diverse CRL tasks versus popular baselines.<\/jats:p>","DOI":"10.24963\/ijcai.2025\/669","type":"proceedings-article","created":{"date-parts":[[2025,9,19]],"date-time":"2025-09-19T08:10:40Z","timestamp":1758269440000},"page":"6012-6020","source":"Crossref","is-referenced-by-count":1,"title":["Multi-granularity Knowledge Transfer for Continual Reinforcement Learning"],"prefix":"10.24963","author":[{"given":"Chaofan","family":"Pan","sequence":"first","affiliation":[{"name":"Southwestern University of Finance and Economics"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lingfei","family":"Ren","sequence":"additional","affiliation":[{"name":"Southwestern University of Finance and Economics"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yihui","family":"Feng","sequence":"additional","affiliation":[{"name":"Southwestern University of Finance and Economics"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Linbo","family":"Xiong","sequence":"additional","affiliation":[{"name":"Southwestern University of Finance and Economics"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wei","family":"Wei","sequence":"additional","affiliation":[{"name":"Shanxi University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yonghao","family":"Li","sequence":"additional","affiliation":[{"name":"Southwestern University of Finance and Economics"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xin","family":"Yang","sequence":"additional","affiliation":[{"name":"Southwestern University of Finance and Economics"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"10584","event":{"name":"Thirty-Fourth International Joint Conference on Artificial Intelligence {IJCAI-25}","theme":"Artificial Intelligence","location":"Montreal, Canada","acronym":"IJCAI-2025","number":"34","sponsor":["International Joint Conferences on Artificial Intelligence Organization (IJCAI)"],"start":{"date-parts":[[2025,8,16]]},"end":{"date-parts":[[2025,8,22]]}},"container-title":["Proceedings of the Thirty-Fourth International Joint Conference on Artificial Intelligence"],"original-title":[],"deposited":{"date-parts":[[2025,9,23]],"date-time":"2025-09-23T11:34:47Z","timestamp":1758627287000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ijcai.org\/proceedings\/2025\/669"}},"subtitle":[],"proceedings-subject":"Artificial Intelligence Research Articles","short-title":[],"issued":{"date-parts":[[2025,9]]},"references-count":0,"URL":"https:\/\/doi.org\/10.24963\/ijcai.2025\/669","relation":{},"subject":[],"published":{"date-parts":[[2025,9]]}}}