“…Similarly, Mouratidis et al introduced “frequentmers,” short sequences that are specific and recurrently observed in either patient or healthy control samples, but not in both [146] . Using metagenomic NGS data from liver cirrhosis patients and healthy controls, machine learning models trained with frequentmers (k = 16) outperformed previous models and achieved an AUC of 0.91 in liver cirrhosis detection.…”