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 are still lacking 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 compared to alternative approaches such as maximization of conditional likelihood, while considerably improving upon the algorithm's run-time.
翻译:尽管在学习高西亚图形模型方面取得了很大进展,但我们仍然缺乏可调整的算法,无法重建普通连续指数家庭,用于模拟超出平均值和共差的较高层次的数据时段。在这里,我们采用了一种基于互动筛选方法的计算高效方法,用于学习连续图形模型。通过一系列数字实验,我们显示我们的估算者在准确性和抽样复杂性方面保持了类似的要求,这与尽量扩大有条件可能性等替代方法相类似,与此同时,在算法运行时也有很大改进。