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arXiv 2101.09741math.OCcs.NAmath.NA
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光滑强凸极小化的最优梯度法

An optimal gradient method for smooth strongly convex minimization

Adrien Taylor, Yoel Drori

摘要:

对光滑强凸优化提出了一种最优梯度法。该方法是最佳的意义上说,它的最坏情况下的最佳点的距离上的界限完全匹配的下界的预言复杂性的类问题,这意味着没有黑盒一阶方法可以有一个更好的最坏情况下的保证,没有进一步假设的类问题在手。此外,我们提供了一个建设性的配方获得的算法参数的方法,并说明它可以用于推导方法的其他最优性标准以及。

英文摘要:

We present an optimal gradient method for smooth strongly convex optimization. The method is optimal in the sense that its worst-case bound on the distance to an optimal point exactly matches the lower bound on the oracle complexity for the class of problems, meaning that no black-box first-order method can have a better worst-case guarantee without further assumptions on the class of problems at hand. In addition, we provide a constructive recipe for obtaining the algorithmic parameters of the method and illustrate that it can be used for deriving methods for other optimality criteria as well.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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