Global convergence of the gradient method for functions definable in o-minimal structures
Global convergence of the gradient method for functions definable in o-minimal structures
复制标题
o-极小结构中可定义函数的梯度法的全局收敛性
DOI:
10.1007/s10107-023-01937-5
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发表时间:
2023
影响因子:
2.7
通讯作者:
Josz, Cédric
中科院分区:
文献类型:
--
作者:
Josz, Cédric
We consider the gradient method with variable step size for minimizing functions that are definable in o-minimal structures on the real field and differentiable with locally Lipschitz gradients. We prove that global convergence holds if continuous gradient trajectories are bounded, with the minimum gradient norm vanishing at the rateo(1/k) if the step sizes are greater than a positive constant. If additionally the gradient is continuously differentiable, all saddle points are strict, and the step sizes are constant, then convergence to a local minimum holds almost surely over any bounded set of initial points.
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DOI:
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发表时间:
2018
期刊:
影响因子:
--
作者:
Y. Chitour;Zhenyu Liao;Romain Couillet
通讯作者:
Romain Couillet
DOI:
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发表时间:
1939
期刊:
影响因子:
--
作者:
G. Temple
通讯作者:
G. Temple
DOI:
--
发表时间:
1991
期刊:
影响因子:
--
作者:
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作者:
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通讯作者:
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影响因子:
3.1
作者:
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