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arXiv 2102.09198cs.LGphysics.data-anstat.ML
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超越高斯的连续指数族的学习

Learning Continuous Exponential Families Beyond Gaussian

Los Alamos National Laboratory(洛斯阿拉莫斯国家实验室)

Christopher X. Ren, Sidhant Misra, Marc Vuffray, Andrey Y. Lokhov

摘要:

研究了具有无界支持度的连续指数族分布的学习问题。虽然高斯图形模型的学习已经取得了很大的进展,但我们仍然缺乏可扩展的算法来重建一般连续指数族,对超出均值和协方差的数据的高阶矩进行建模。在这里,我们介绍了一种计算效率高的方法来学习连续图形模型的基础上的交互筛选方法。通过一系列的数值实验,我们表明,我们的估计保持类似的要求,在准确性和样本复杂度缩放相比,替代方法,如最大化的条件似然,同时大大提高了算法的运行时间。

英文摘要:

We address the problem of learning of continuous exponential family distributions with unbounded support. While a lot of progress has been made on learning of Gaussian graphical models, we still lack scalable algorithms for reconstructing general continuous exponential families modeling higher-order moments of the data beyond the mean and the covariance. Here, we introduce a computationally efficient method for learning continuous graphical models based on the Interaction Screening approach. Through a series of numerical experiments, we show that our estimator maintains similar requirements in terms of accuracy and sample complexity scalings compared to alternative approaches such as maximization of conditional likelihood, while considerably improving upon the algorithm's run-time.

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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