摘 要:
本文提出了一族计算βk的新公式βk^*(μ)(其中,μ∈[0,1]为常量),证明了相应的共轭梯度法在σ∈(0,1/2)的SWP线搜索下具有全局收敛性,取μ=1/e‖gk-gk-1‖^k为变量情形的βk^*方法在SWP下也全局收敛。[著者文摘]

文章出处:
《南宁师范高等专科学校学报》-2007年24卷2期 -137-139页
Journal of Nanning Junior Teachers College
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1008-696X(2007)02-0137-03
相关文章:
A Class of New Conjugate Gradient Method and Its Global Convergence under the SWP Line Search search.
Huang Hai,Lin Suihua (Mathematics and Computer Science Department, Nanning Teachers College, Longzhou, Guangxi 532400, China)
Abstract:
The paper brings out a class of new formula βk^*(μ)μ∈[0,1]is a constants)in calculating βk, and proofs the corresponding conjugate gradient method has global convergence under the SWPσ∈(0,1/2)line search.βk^*method, taking μ=1/e‖gk-gk-1‖^k as variables, also has global convergence under SWP line search.[著者文摘]
Key words:
unconstrained optimization; conjugate gradient method; non-precision linear search; globalconvergence
收稿日期: 2007-04-08

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