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Main Authors: Hong, Qiuhe, Liu, Yuyang, Yang, Shuo, Peng, Tiantian, Zhu, Fei, Tian, Yonghong
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2605.18903
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author Hong, Qiuhe
Liu, Yuyang
Yang, Shuo
Peng, Tiantian
Zhu, Fei
Tian, Yonghong
author_facet Hong, Qiuhe
Liu, Yuyang
Yang, Shuo
Peng, Tiantian
Zhu, Fei
Tian, Yonghong
contents Vision-Language Models in Continual Learning (VLM-CL) aim to continuously adapt to new multimodal tasks while retaining prior knowledge. The emerging paradigm that couples Multimodal Large Language Models (MLLMs) with Reinforcement Learning with Verifiable Rewards (RLVR) calls for a new pattern to guide continual adaptation. Advances in reasoning capability now make it feasible to impose constraints at the reasoning level. We formalize portability, a sample-level measure of how reusable the previous policy's behavior is on a new task, and empirically show that reasoning-level signals remain reliable on out-of-distribution samples while answer-level signals do not. We instantiate this as Reasoning Portability (RP) and propose Reasoning-based Dynamic Balance Continual Learning (RDB-CL), which modulates the per-sample Kullback-Leibler regularization in RLVR according to RP: a tight anchor preserves reusable reasoning on high-RP samples, while a relaxed anchor on low-RP samples permits exploration of new reasoning pathways. Experiments show that RDB-CL consistently outperforms baselines, improving Last accuracy by +12.0% over the vanilla RLVR baseline.
format Preprint
id arxiv_https___arxiv_org_abs_2605_18903
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Reasoning Portability: Guiding Continual Learning for MLLMs in the RLVR Era
Hong, Qiuhe
Liu, Yuyang
Yang, Shuo
Peng, Tiantian
Zhu, Fei
Tian, Yonghong
Machine Learning
Computer Vision and Pattern Recognition
Vision-Language Models in Continual Learning (VLM-CL) aim to continuously adapt to new multimodal tasks while retaining prior knowledge. The emerging paradigm that couples Multimodal Large Language Models (MLLMs) with Reinforcement Learning with Verifiable Rewards (RLVR) calls for a new pattern to guide continual adaptation. Advances in reasoning capability now make it feasible to impose constraints at the reasoning level. We formalize portability, a sample-level measure of how reusable the previous policy's behavior is on a new task, and empirically show that reasoning-level signals remain reliable on out-of-distribution samples while answer-level signals do not. We instantiate this as Reasoning Portability (RP) and propose Reasoning-based Dynamic Balance Continual Learning (RDB-CL), which modulates the per-sample Kullback-Leibler regularization in RLVR according to RP: a tight anchor preserves reusable reasoning on high-RP samples, while a relaxed anchor on low-RP samples permits exploration of new reasoning pathways. Experiments show that RDB-CL consistently outperforms baselines, improving Last accuracy by +12.0% over the vanilla RLVR baseline.
title Reasoning Portability: Guiding Continual Learning for MLLMs in the RLVR Era
topic Machine Learning
Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2605.18903