TF-IDF k-mer-based Classical and Hybrid Machine Learning Models for SARS-CoV-2 Variant Classification under Imbalanced Genomic Data
Nazmul Haque, Abdul Mazed, Jannatul Nayeem Ankhi, Md Jamal Uddin
This study compares machine learning models for SARS-CoV-2 variant classification under imbalanced data, finding classical models with TF-IDF k-mer features outperform deep learning methods.
bioRxiv · Apr 2, 2026 · PreprintBioinformatics