PIC: Domain generalization by path information constraint

doi:10.1016/j.patcog.2025.111769

	PIC: Domain generalization by path information constraint
	Zhu, Jilong 1,2; Zhuo, Junbao 3; Wang, Shuhui 1
	2025-12-01
发表期刊	PATTERN RECOGNITION
ISSN	0031-3203
卷号	168 页码:12
摘要	Despite the widespread use of deep neural networks in various tasks, their weak generalization ability to out-of-distribution data has always been one of the challenges hindering their practical applications. Domain Generalization (DG) aims to address this issue by learning domain-robust features across source domains, enabling models to generalize well to unseen target domains. Although DG has received extensive attention, existing solutions often overlook the relationships between different source domains and fail to make good utilization of the information contained in the source domain data to enhance the model's generalization ability. In this paper, we propose the Path Information Constraint (PIC) method, which enhances training diversity by constructing distinct learning paths within source domains and leverages constraints between paths to capture consistent and generalizable features. Experimental results show that our method achieves competitive results on multiple challenging benchmarks. PIC outperforms the best non-ensembled method by an average of 0.7% across four benchmarks, especially a 3.3% improvement on the OfficeHome benchmark. Furthermore, ensembling PIC by averaging multiple independently trained models leads to further improvements. The code is available at: https://github.com/JilongZhu/path_information_constraint.
关键词	Domain generalization Transfer learning Path information constraint Adversarial manifold learning
DOI	10.1016/j.patcog.2025.111769
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2023YFC2508704] ; National Natural Science Foundation of China[62022083] ; National Natural Science Foundation of China[62236008] ; National Natural Science Foundation of China[62402033]
WOS研究方向	Computer Science ; Engineering
WOS类目	Computer Science, Artificial Intelligence ; Engineering, Electrical & Electronic
WOS记录号	WOS:001501491400001
出版者	ELSEVIER SCI LTD
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/42318
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Zhuo, Junbao
作者单位	1.Chinese Acad Sci, Inst Comput Tech, Key Lab Intell Info Proc, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Univ Sci & Technol Beijing, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Jilong,Zhuo, Junbao,Wang, Shuhui. PIC: Domain generalization by path information constraint[J]. PATTERN RECOGNITION,2025,168:12.
APA	Zhu, Jilong,Zhuo, Junbao,&Wang, Shuhui.(2025).PIC: Domain generalization by path information constraint.PATTERN RECOGNITION,168,12.
MLA	Zhu, Jilong,et al."PIC: Domain generalization by path information constraint".PATTERN RECOGNITION 168(2025):12.