Hessian matrices are used in large-scale optimization problems within Newton-type methods because they are the coefficient of the quadratic term ofa local Taylor expansionofafunction.
Chapter seven draws a conclusion of this paper and make a forward looking on the expansionof the system's performance and function.
第七章给出了本文的主要结论,同时对系统性能的进一步优化和功能的扩展进行了展望。
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When parameters of the input ofa large scale system deviate, its approximate reduced order model can be obtained by using the asymptotic expansionof the input function.