Ensemble learning system to identify nutritional risk and malnutrition in cancer patients without weight loss information

Dear Editor,Malnutrition is a prevalent disease in oncology practice(Arends et al.,2017).With its cancer-specific prevalence ranging from 21%–72%,malnutrition is responsible for 10%–20% cancer deaths(Yin et al.,2021b).However,malnutrition is often underestimated,misclassified,or left untreated in cancer care(Hébuterne et al.,2014).