no code implementations • 3 Oct 2023 • Xiangru Li, Yifei Zhang, Liang Zhao
The Segment Anything Model (SAM) is a powerful foundation model that introduced revolutionary advancements in natural image segmentation.
1 code implementation • 20 Dec 2022 • Xiaohua Ma, Xiangru Li, Ali Luo, Jinqu Zhang, Hui Li
With the development of a series of Galaxy sky surveys in recent years, the observations increased rapidly, which makes the research of machine learning methods for galaxy image recognition a hot topic.
no code implementations • 13 Apr 2022 • Xiangru Li, Zhu Wang, Si Zeng, Caixiu Liao, Bing Du, X. Kong, Haining Li
Firstly, this scheme detected stellar atmospheric parameter-sensitive features from spectra by the Least Absolute Shrinkage and Selection Operator (LASSO), rejected ineffective data components and irrelevant data.
no code implementations • 20 Feb 2020 • Haitao Lin, Xiangru Li, Ziying Luo
In this work, two feature selection algorithms ----\textit{Grid Search} (GS) and \textit{Recursive Feature Elimination} (RFE)---- are proposed to improve the detection performance by removing the redundant and irrelevant features.
no code implementations • 9 Apr 2015 • Xiangru Li, Yu Lu, Georges Comte, Ali Luo, Yongheng Zhao, Yongjun Wang
On real spectra, we extracted 23 features to estimate $T_{eff}$, 62 features for log$~g$, and 68 features for [Fe/H].