Рақамли технологияларнинг назарий ва амалий масалалари Volume 9 Issue 3 (2026) · pp. 25-29
Formal representation of the features and feature space of medical diagnostic data
Рузибаев, О.Б.
Abstract
This article analyzes the medical diagnosis process from a data perspective and describes an approach to formally representing a mixed-type feature space describing a patient's condition. The formation of medical data from various sources, such as clinical observations, laboratory tests, instrumental examinations, medical images, genetic data, and anamnesis, as well as their measurement scales, reliability levels, and time-varying properties are analyzed. The impact of distinguishing nominal and numerical features, accounting for missing values based on reliability masks, class imbalance, and taking into account time-dependent features on the quality of the diagnostic model is highlighted. The informativeness of medical features, criteria for their selection, and principles for preserving clinical semantics are also analyzed.
признакмедицинское изображениеутечка целевой переменной (target leakage)глубокие нейронные сетифенотипическийчувствительность (sensitivity)специфичность (specificity)featuremedical imagestarget leakage
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