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arXiv 1701.05053cs.LG
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基于二阶方法的高效分层在线非线性回归

Highly Efficient Hierarchical Online Nonlinear Regression Using Second Order Methods

Bilkent University(比尔肯大学);Turk Telekom Communications Services Inc.(土耳其电信通信服务公司)

Burak C. Civek, Ibrahim Delibalta, Suleyman S. Kozat

摘要:

我们介绍了高效的在线非线性回归算法,适用于现实生活中的应用。我们以真正的在线方式处理数据,因此不需要存储,即,数据在使用后被丢弃。对于非线性建模,我们使用分层分段线性方法的概念的基础上的决策树的回归向量的空间是自适应分区的基础上的性能。作为文献中的第一次,我们学习了回归空间的分段线性划分以及使用高效的二阶方法在每个区域中的线性模型,即,Newton-Raphson方法因此,我们通过使用分段线性模型避免了众所周知的过度拟合问题,然而,由于区域边界以及每个区域中的线性模型都是使用二阶方法训练的,我们实现了实质性的性能相比,最先进的。我们证明了我们的收益超过了众所周知的基准数据集,并提供了性能结果,在一个单独的序列方式保证举行,没有任何统计假设。因此,所介绍的算法解决了现实生活中广泛遇到的计算复杂性问题,同时在强确定性意义上提供了优越的保证性能。

英文摘要:

We introduce highly efficient online nonlinear regression algorithms that are suitable for real life applications. We process the data in a truly online manner such that no storage is needed, i.e., the data is discarded after being used. For nonlinear modeling we use a hierarchical piecewise linear approach based on the notion of decision trees where the space of the regressor vectors is adaptively partitioned based on the performance. As the first time in the literature, we learn both the piecewise linear partitioning of the regressor space as well as the linear models in each region using highly effective second order methods, i.e., Newton-Raphson Methods. Hence, we avoid the well known over fitting issues by using piecewise linear models, however, since both the region boundaries as well as the linear models in each region are trained using the second order methods, we achieve substantial performance compared to the state of the art. We demonstrate our gains over the well known benchmark data sets and provide performance results in an individual sequence manner guaranteed to hold without any statistical assumptions. Hence, the introduced algorithms address computational complexity issues widely encountered in real life applications while providing superior guaranteed performance in a strong deterministic sense.

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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