Results: Standardization regression coefficient from big to small in proper order were: oxygenation index, CT, body temperature of the admission day, BMI were the most influence on ALI;
结果：按标准化回归系数绝对值由大到小：氧合指数、CT、入院体温、体质量指数对ALI的影响最大；
At the same time, relative fitness which was based on influence degree coefficient was designed to reduce objects' non-standardization error.
同时，设计了基于影响度因子的相对适应度函数来消除目标非标准化误差。
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