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arXiv 1602.06276stat.MLmath.STstat.TH
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半参数序基广义多元回归

Semi-parametric Order-based Generalized Multivariate Regression

Milad Kharratzadeh, Mark Coates

摘要:

在本文中,我们考虑一个广义多元回归问题,其中的响应是预测变量线性变换的单调函数。我们提出了一个半参数算法的基础上的顺序的响应是不变的变换函数的函数形式。我们证明了我们的算法,它最大限度地提高了响应的秩相关性和线性变换的预测,是一个真正的系数矩阵的相合估计量。我们还确定了收敛速度,并表明平方估计误差衰减率为$o(1/\sqrt{n})$。然后,我们提出了一个贪婪算法,最大限度地提高我们的模型的高度非光滑的目标函数,并通过广泛的模拟检查其性能。最后,我们比较了我们的算法与传统的多元回归算法在合成和真实数据。

英文摘要:

In this paper, we consider a generalized multivariate regression problem where the responses are monotonic functions of linear transformations of predictors. We propose a semi-parametric algorithm based on the ordering of the responses which is invariant to the functional form of the transformation function. We prove that our algorithm, which maximizes the rank correlation of responses and linear transformations of predictors, is a consistent estimator of the true coefficient matrix. We also identify the rate of convergence and show that the squared estimation error decays with a rate of $o(1/\sqrt{n})$. We then propose a greedy algorithm to maximize the highly non-smooth objective function of our model and examine its performance through extensive simulations. Finally, we compare our algorithm with traditional multivariate regression algorithms over synthetic and real data.

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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