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arXiv 2106.08779cs.LG
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结构化数据离群点检测技术的比较

Comparison of Outlier Detection Techniques for Structured Data

Indian Institutes of Information Technology Delhi(德里印度信息技术学院);IBM Research AI(IBM研究院人工智能部门)

Amulya Agarwal, Nitin Gupta

摘要:

离群值是远离给定数据集中其余数据点的观测值或数据点,或者我们可以说离群值远离观测值的质心。离群值的存在可能会扭曲统计测量和数据分布,这可能导致对基础数据和关系的误导性表示。可以看出,在建模之前从训练数据集中去除离群值可以给出更好的预测。随着机器学习的发展,异常值检测模型也在飞速发展。这项工作的目标是突出和比较一些现有的离群值检测技术,以便数据科学家在构建机器学习模型时使用这些信息进行离群值算法选择。

英文摘要:

An outlier is an observation or a data point that is far from rest of the data points in a given dataset or we can be said that an outlier is away from the center of mass of observations. Presence of outliers can skew statistical measures and data distributions which can lead to misleading representation of the underlying data and relationships. It is seen that the removal of outliers from the training dataset before modeling can give better predictions. With the advancement of machine learning, the outlier detection models are also advancing at a good pace. The goal of this work is to highlight and compare some of the existing outlier detection techniques for the data scientists to use that information for outlier algorithm selection while building a machine learning model.

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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