In psychiatric diagnosis, a contemporary data-driven, manual-based method for mental disorders classification is the most popular technique; however, it has several inevitable flaws. Using the three-way decision as a framework, we propose a unified model that stands for clinicians' subjective approach (CSA) analysis consisting of three parts: quantitative analysis, quantitative analysis, and evaluation-based analysis. A ranking list and a set of numerical weights based on illness magnitude levels according to the clinician's greatest degree of assumptions are the findings of the qualitative and quantitative investigation. We further create a comparative classification of illnesses into three groups with varying important levels; a three-way evaluation-based model is utilized in this study for the aim of understanding and portraying these results in a more clear way. This proposed method might be integrated with the manual-based process as a complementary tool to improve precision while diagnosing mental disorders

翻译：在精神病学诊断中，当前基于数据驱动和操作手册的精神障碍分类方法是最主流的技术手段，然而该方法存在若干不可避免的缺陷。本文以三支决策为框架，提出一个包含三部分分析过程的统一模型：定量分析、定性分析与评估分析，用于表征临床医师的主观方法（CSA）。根据医师最大程度假设下的疾病严重程度等级，定性与定量分析结果生成一个排序列表及一组数值权重。我们进一步将疾病按重要程度划分为三个对比等级组，并采用三支评估模型对结果进行更清晰的理解与呈现。该提议方法可作为操作手册诊断流程的补充工具，提升精神障碍诊断的精准度。