Paper Detail
Songpan Gao, Yajie Zhang, Guanxing Chen, Jiayu Qian, Zhenzhen Liu, Shijun Li, Xiaowei Zhu, Yao Hu, Kay Chen Tan, Yu-An Huang, Shiqi Wang, Zhi-An Huang
Deep learning models applied to medical image analysis suffer from severe catastrophic forgetting when continually adapting to new clinical tasks in dynamic environments. Mainstream incremental learning methods typically mitigate this by rehearsing raw historical images. However, this pixel-level rehearsal incurs significant storage overhead, raises privacy concerns, and fails to adequately capture the true data distribution with sparse exemplars. Inspired by human cognitive mechanisms, we propose a novel framework termed Semantic Text-Anchored Incremental Learning (STAIL) for sequential clinical tasks. To overcome the rehearsal bottleneck, STAIL introduces an asymmetric semantic consolidation buffer (SCB). By incorporating a minimal set of image anchors and extensive textual descriptions, the SCB enables dense semantic reconstruction of old tasks at a minimal storage cost. Furthermore, we design an LLM-derived Semantic Anchoring Mechanism (LSAM) that leverages the stable semantic space of frozen large language models as developmental priors. This mechanism explicitly anchors evolving visual features to textual representations, guiding and constraining plasticity and stability at both macroscopic and microscopic levels. Extensive experiments across three heterogeneous medical datasets, covering fundus, ultrasound, and X-ray imaging, demonstrate that STAIL acts as a highly effective plug-and-play module. It comprehensively enhances the performance of various existing baselines, achieving average gains of 2.24\% in AAA-AUC for sustained performance and 3.55\% in BWT-AUC for reduced forgetting. Code is available.
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@article{gao2026stail,
title = {STAIL: Semantic Text-Anchored Incremental Learning for Medical Imaging via Large Language Models},
author = {Songpan Gao and Yajie Zhang and Guanxing Chen and Jiayu Qian and Zhenzhen Liu and Shijun Li and Xiaowei Zhu and Yao Hu and Kay Chen Tan and Yu-An Huang and Shiqi Wang and Zhi-An Huang},
year = {2026},
abstract = {Deep learning models applied to medical image analysis suffer from severe catastrophic forgetting when continually adapting to new clinical tasks in dynamic environments. Mainstream incremental learning methods typically mitigate this by rehearsing raw historical images. However, this pixel-level rehearsal incurs significant storage overhead, raises privacy concerns, and fails to adequately capture the true data distribution with sparse exemplars. Inspired by human cognitive mechanisms, we propo},
url = {https://arxiv.org/abs/2608.05808},
keywords = {cs.CV},
eprint = {2608.05808},
archiveprefix = {arXiv},
}
{}