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针对结构方程模型中偏最小二乘算法的迭代初取任意值时收敛速度太慢的问题,提出了一种在SEM中改进的偏最小二乘算法,它使用单位向量约束的合适迭代初值,能极大增强收敛性,提高收敛速度。对多对象结构方程模型,采用分布式计算来计算了方程组的系数,最后使用凸约束广义结构模型构建了一个统一模型,并建立了多对象结构方程模型的算法。
Aiming at the problem that the convergence rate of the partial least square algorithm in the structural equation model is too slow when the initial value is arbitrary, an improved partial least squares algorithm in SEM is proposed, which uses the initial value of appropriate iteration of the unit vector constraint, Can greatly enhance the convergence and improve the convergence rate. For the multi-object structural equation model, distributed calculation is used to calculate the coefficients of the system of equations. Finally, a unified model is constructed by using the convex-order generalized structure model and the algorithm of multi-object structural equation model is established.