.png){kind=icon}
返回
Model-Free Subsampling Method Based on Uniform Designs
.png){kind=icon}
OA
AI
DOI：10.1109/TKDE.2023.3297167.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Subsampling or subdata selection is a useful approach in large-scale statistical learning. Most existing studies focus on model-based subsampling methods which significantly depend on the model assumption. In this paper, we consider the model-free subsampling strategy for generating subdata from the original full data. In order to measure the goodness of representation of a subdata with respect to the original data, we propose a criterion, generalized empirical F-discrepancy (GEFD), and study its theoretical properties in connection with the classical generalized L2-discrepancy in the theory of uniform designs. These properties allow us to develop a kind of low-GEFD data-driven subsampling method based on the existing uniform designs. By simulation examples and a real case study, we show that the proposed subsampling method is superior to the random sampling method. Moreover, our method keeps robust under diverse model specifications while other popular subsampling methods are under-performing. In practice, such a model-free property is more appealing than the model-based subsampling methods, where the latter may have poor performance when the model is misspecified, as demonstrated in our simulation studies.
Keyword:
Kernel
Data models
Numerical models
Hypercubes
Computational modeling
Big Data
Statistical learning
Empirical F -discrepancy
generalized l (2) -discrepancy
koksma-hlawka inequality
model-free subsampling
reproducing kernel
期刊
IF:
10.4
论文数:
6.9K
被引数:
3.2W
机构
引用论文
Sliced Latin Hypercube Designs for Computer Experiments With Unequal Batch Sizes.png)
IEEE ACCESS
OAAI
IEEE ACCESSIF3.6
OAAI分享收藏分享收藏分享收藏分享收藏A fast-response photochromic host–guest coordination polymer with a close-packed stacking structureCrystEngComm
CrystEngCommIF0
PREAI
分享收藏
查看更多内容