简介:将Lasso算法和logistic回归模型相结合并且引入P2P个人网络信贷评估体系,通过模拟实验的结果发现,在全变量logistic模型、Lasso-logistic模型、Ridge-logistic模型中,Lasso-logistic模型对于变量的压缩效果要更好,有助于简化模型;虽然三个模型在进行预测的结果上并没有显著的差异,但是Lasso-logistic模型在计算效率上更胜一筹,在处理大量数据的情况下更有效率。
简介:of restoring the source cultural reality embodied in the source language in the target language that usually,equivalence of this category might be more attributable to the cultural exchange activities outside the scope of translation than to the very act of translating.,the target language is entrusted to express the cultural reality specific to the source language
简介:这说明非集体产权制度可以很显著地提高灌溉系统的技术效率,非集体产权制度较之集体产权制度而言可以显著地提高灌溉系统的技术效率,非集体产权制度可以显著地提高技术效率在表5的计量估计结果中