arXiv AI By Xiaoqing Lian, Pei Liu, Jiahui Tan, Quan Zou, Chen Lin, Xiangxiang Zeng

Understanding Gene Expression-to-Image Learning: Spatial Structure and Information Fidelity

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Hugging Face Trending Papers
Oct 13

Understanding Gene Expression-to-Image Learning: Spatial Structure and Information Fidelity

The paper investigates how arranging single‑cell RNA sequencing data into images (Gene Expression‑to‑Image, GE2I) affects learning with convolutional neural networks. By keeping the network and training procedure constant, the authors uncover a trade‑off between spatial smoothness and gene‑level fidelity: structured mappings yield smooth, low‑frequency patterns that accelerate early optimization, while assigning multiple genes to the same pixel can obscure expression differences and hurt predictive performance. They show that one‑to‑one gene‑to‑pixel assignments improve predictions across various visual backbones, and that the benefits of pretraining and augmentation depend on both the backbone and the mapping strategy, offering practical guidance for pixel allocation and transfer learning in gene expression analysis.

arXiv AI
Oct 1

GATE-ST: Gene-Aware Text-image Encoder for Spatial Transcriptomics

GATE-ST is a gene-aware text-image encoder that enhances spatial transcriptomics predictions by integrating gene descriptions into image-based models. The method encodes gene summaries with a text encoder and fuses these embeddings with image features via cross‑attention, aligning them with morphological cues. Benchmarks show GATE‑ST outperforms random gene embeddings and other image‑text fusion architectures, indicating its potential to improve accuracy while reducing time and cost in spatial gene expression analysis.

By Lucas Ni, Jian Luo, Wentao Huang, Chao Chen