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arXiv 1105.6041cs.LG
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具有动态裕度的感知器

The Perceptron with Dynamic Margin

Aristotle University of Thessaloniki(塞萨洛尼基亚里士多德大学)

Constantinos Panagiotakopoulos, Petroula Tsampouka

摘要:

经典的感知器规则提供了一个变化的上限上的最大余量,即当前权重向量的长度除以总的更新到那个时候。要求感知器更新其内部状态时,发现一个模式的归一化的利润率不超过一定比例的动态上限,我们构造了一个新的近似最大利润率分类器称为感知器与动态利润率(PDM)。我们证明了PDM收敛在一个有限的步骤,并推导出他们的上限。我们还比较实验PDM与其他感知器类算法和支持向量机的硬利润率任务涉及线性内核,相当于2-范数软利润率。

英文摘要:

The classical perceptron rule provides a varying upper bound on the maximum margin, namely the length of the current weight vector divided by the total number of updates up to that time. Requiring that the perceptron updates its internal state whenever the normalized margin of a pattern is found not to exceed a certain fraction of this dynamic upper bound we construct a new approximate maximum margin classifier called the perceptron with dynamic margin (PDM). We demonstrate that PDM converges in a finite number of steps and derive an upper bound on them. We also compare experimentally PDM with other perceptron-like algorithms and support vector machines on hard margin tasks involving linear kernels which are equivalent to 2-norm soft margin.

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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