At last DE-LSSVM was presented for soft sensor modeling on testing the content of 4-carboxybenzaldehyde (4-CBA) in terephthalic acid, and the result was satisfied.

• 提出基于差分进化算法的最小二乘支持向量机应用于软测量建模，并将其应用于对苯二甲酸中对羧基苯甲醛含量测试的软测量建模中，获得了满意的结果。