no code implementations • 28 May 2024 • Mingyuan Liu, Lu Xu, Shengnan Liu, Jicong Zhang
The success of Large Vision Models (LVMs) is accompanied by vast data volumes, which are prohibitively expensive in medical diagnosis. To address this, recent efforts exploit Parameter-Efficient Fine-Tuning (PEFT), which trains a small number of weights while freezing the rest. However, they typically assign trainable weights to the same positions in LVMs in a heuristic manner, regardless of task differences, making them suboptimal for professional applications like medical diagnosis. To address this, we statistically reveal the nature of sparsity and hybridity during diagnostic-targeted fine-tuning, i. e., a small portion of key weights significantly impacts performance, and these key weights are hybrid, including both task-specific and task-agnostic parts. Based on this, we propose a novel Sparsity- and Hybridity-inspired Parameter Efficient Fine-Tuning (SH-PEFT). It selects and trains a small portion of weights based on their importance, which is innovatively estimated by hybridizing both task-specific and task-agnostic strategies. Validated on six medical datasets of different modalities, we demonstrate that SH-PEFT achieves state-of-the-art performance in transferring LVMs to medical diagnosis in terms of accuracy.
no code implementations • 10 Jul 2023 • Mingyuan Liu, Lu Xu, Jicong Zhang
To tackle OSR, we assume that known classes could densely occupy small parts of the embedding space and the remaining sparse regions could be recognized as unknowns.
1 code implementation • 28 Jul 2022 • Rushi Jiao, Yichi Zhang, Le Ding, Rong Cai, Jicong Zhang
Medical image segmentation is a fundamental and critical step in many image-guided clinical approaches.
no code implementations • 18 Apr 2022 • Yanchao Yuan, Cancheng Li, Lu Xu, Ke Zhang, Yang Hua, Jicong Zhang
Test results show that the proposed method with dice loss function yields a Dice value of 0. 820, an IoU of 0. 701, Acc of 0. 969, and modified Hausdorff distance (MHD) of 1. 43 for 30 vulnerable cases of plaques, it outperforms some of the conventional CNN-based methods on these metrics.
no code implementations • 5 Dec 2021 • Yichi Zhang, Rushi Jiao, Qingcheng Liao, Dongyang Li, Jicong Zhang
In this paper, we propose a novel uncertainty-guided mutual consistency learning framework to effectively exploit unlabeled data by integrating intra-task consistency learning from up-to-date predictions for self-ensembling and cross-task consistency learning from task-level regularization to exploit geometric shape information.
1 code implementation • 20 Sep 2021 • Xuanting Hao, Shengbo Gao, Lijie Sheng, Jicong Zhang
Based on this, the feature extractor is constrained to encourage the consistency of probability maps generated by classifiers under diversified features.
1 code implementation • 8 Mar 2021 • Yichi Zhang, Jicong Zhang
The success of deep learning methods in medical image segmentation tasks usually requires a large amount of labeled data.
no code implementations • 31 Dec 2020 • Yichi Zhang, Qingcheng Liao, Lin Yuan, He Zhu, Jiezhen Xing, Jicong Zhang
In this paper, we propose a novel relation-driven collaborative learning model to exploit shared knowledge from non-COVID lesions for annotation-efficient COVID-19 CT lung infection segmentation.
no code implementations • 13 Oct 2020 • Yichi Zhang, Qingcheng Liao, Le Ding, Jicong Zhang
Despite these works lead to improvements on a variety of segmentation tasks, to the best of our knowledge, there has not previously been a large-scale empirical comparison of these methods.
no code implementations • MIDL 2019 • Yichi Zhang, Lin Yuan, Yujia Wang, Jicong Zhang
Accurate segmentation of spine Magnetic Resonance Imaging (MRI) is highly demanded in morphological research, quantitative analysis, and diseases identification, such as spinal canal stenosis, disc herniation and degeneration.