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A New Three-Term Preconditioned Gradient memory Algorithm for Nonlinear Optimization Problems | Science Publications

机译:非线性优化问题的三项预处理梯度存储算法科学出版物

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> In the present study, we proposed a three-term of preconditioned gradient memory algorithms to solve a nonlinear optimization problem. The new algorithm subsumes some other families of nonlinear preconditioned gradient memory algorithms as its subfamilies with Powell's Restart Criterion and inexact Armijo line searches. Numerical experiments on twenty one well-known test functions with various dimensions generally encouraged and showed that the new algorithm was more stable and efficient in comparison with the standard three-term CG- algorithm.
机译: >在本研究中,我们提出了三项预处理梯度存储算法来解决非线性优化问题。该新算法包含了Powell的Restart Criterion和不精确的Armijo线搜索子族,从而包含了其他一些非线性预处理梯度记忆算法家族。通常鼓励对21种不同尺寸的著名测试函数进行数值实验,结果表明,与标准的三项CG算法相比,该新算法更稳定,更有效。

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