Search Results for author: Xiangru Li

Found 5 papers, 1 papers with code

Multi-Prompt Fine-Tuning of Foundation Models for Enhanced Medical Image Segmentation

no code implementations3 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.

Image Segmentation Medical Image Segmentation +2

Galaxy Image Classification using Hierarchical Data Learning with Weighted Sampling and Label Smoothing

1 code implementation20 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.

Image Classification

Estimation of stellar atmospheric parameters from LAMOST DR8 low-resolution spectra with 20$\leq$SNR$<$30

no code implementations13 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.

Pulsars Detection by Machine Learning with Very Few Features

no code implementations20 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.

BIG-bench Machine Learning feature selection

Linearly Supporting Feature Extraction For Automated Estimation Of Stellar Atmospheric Parameters

no code implementations9 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].

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