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arXiv 1807.09306stat.MLcs.LG
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自动贝叶斯密度分析

Automatic Bayesian Density Analysis

Max-Planck-Institute for Intelligent Systems(马克斯·普朗克智能系统研究所);TU Darmstadt(达姆施塔特工业大学);University of Cambridge(剑桥大学);Uber AI Labs(优步人工智能实验室)

Antonio Vergari, Alejandro Molina, Robert Peharz, Zoubin Ghahramani, Kristian Kersting, Isabel Valera

摘要:

以自动和无监督的方式理解数据集是统计学和人工智能中的一个挑战性问题。传统的探索性数据分析方法通常不够灵活,无法处理现实世界数据固有的不确定性:它们通常限于固定的潜在交互模型和同质似然性;它们对缺失、损坏和异常数据敏感;此外,它们的表达能力通常以难以推理为代价。因此,通常需要统计人员的监督才能为数据找到正确的模型。然而,由于领域专家不一定也是统计学专家,我们提出了自动贝叶斯密度分析(ABDA),使探索性数据分析在大访问。具体而言,ABDA允许自动和有效的缺失值估计,统计数据类型和似然发现,异常检测和依赖结构挖掘,提供准确的密度估计。大量的经验证据表明,ABDA是一个合适的工具,自动探索性分析的混合连续和离散的表格数据。

英文摘要:

Making sense of a dataset in an automatic and unsupervised fashion is a challenging problem in statistics and AI. Classical approaches for {exploratory data analysis} are usually not flexible enough to deal with the uncertainty inherent to real-world data: they are often restricted to fixed latent interaction models and homogeneous likelihoods; they are sensitive to missing, corrupt and anomalous data; moreover, their expressiveness generally comes at the price of intractable inference. As a result, supervision from statisticians is usually needed to find the right model for the data. However, since domain experts are not necessarily also experts in statistics, we propose Automatic Bayesian Density Analysis (ABDA) to make exploratory data analysis accessible at large. Specifically, ABDA allows for automatic and efficient missing value estimation, statistical data type and likelihood discovery, anomaly detection and dependency structure mining, on top of providing accurate density estimation. Extensive empirical evidence shows that ABDA is a suitable tool for automatic exploratory analysis of mixed continuous and discrete tabular 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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