SCAFG: Classifying Single Cell Types Based on an Adaptive Threshold Fusion Graph Convolution Network

Haonan Peng, Yuanyuan Li () and Wei Zhang
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Haonan Peng: School of Mathematics and Physics, Wuhan Institute of Technology, Wuhan 430205, China
Yuanyuan Li: School of Mathematics and Physics, Wuhan Institute of Technology, Wuhan 430205, China
Wei Zhang: School of Science, East China Jiaotong University, Nanchang 330013, China

Mathematics, 2022, vol. 10, issue 18, 1-11

Abstract: Single-cell RNA sequencing (scRNA-seq) technology has been a significant direction for single-cell research due to its high accuracy and specificity, as it enables unbiased high-throughput studies with minimal sample sizes. The continuous improvement of scRNA-seq technology has promoted parallel research on single-cell multi-omics. Instead of sequencing bulk cells, analyzing single cells inspires greater discovery power for detecting novel genes without prior knowledge of sequence information and with greater sensitivity when quantifying rare variants and transcripts. However, current analyses of scRNA-seq data are usually carried out with unsupervised methods, which cannot take advantage of the prior distribution and structural features of the data. To solve this problem, we propose the SCAFG (Classifying Single Cell Types Based on an Adaptive Threshold Fusion Graph Convolution Network), a semi-supervised single-cell classification model that adaptively fuses cell-to-cell correlation matrices under various thresholds according to the distribution of cells. We tested the performance of the SCAFG in identifying cell types on diverse real scRNA-seq data; then, we compared the SCAFG with other commonly used semi-supervised algorithms, and it was shown that the SCAFG can classify single-cell data with a higher accuracy.

Keywords: single cell; semi-supervised classification; graph convolution network (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
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