Add FlashDeconv to Cell Type Deconvolution section

[cafferychen777]

Summary

Add FlashDeconv to the Cell Type Deconvolution section.

FlashDeconv is a high-performance spatial transcriptomics deconvolution method using structure-preserving randomized sketching. It achieves atlas-scale processing (1M spots in ~3 minutes) with linear O(N) complexity.

Key Features

• Structure-preserving randomized sketching with leverage-score importance sampling
• Linear O(N) scaling for time and memory
• Optimized for subcellular-resolution platforms (Visium HD, Stereo-seq, Xenium)
• Preserves rare cell type signals that variance-based methods miss

Publication

Yang, C., Chen, J. & Zhang, X. FlashDeconv enables atlas-scale, multi-resolution spatial deconvolution via structure-preserving sketching. bioRxiv (2025). https://doi.org/10.64898/2025.12.22.696108

Code

https://github.com/cafferychen777/flashdeconv