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arXiv 2302.04702cs.DBcs.LG
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REIN:ML管道中数据清洗方法的综合基准框架

REIN: A Comprehensive Benchmark Framework for Data Cleaning Methods in ML Pipelines

Software AG(软件AG)

Mohamed Abdelaal, Christian Hammacher, Harald Schoening

摘要:

如今,机器学习(ML)在我们日常生活的许多方面发挥着至关重要的作用。从本质上讲,构建性能良好的ML应用程序需要在这些应用程序的整个生命周期中提供高质量的数据。然而,大多数现实世界的表格数据都存在不同类型的差异,例如缺失值、离群值、重复、模式违规和不一致。这种差异通常在收集、传输、存储和/或整合数据时出现。为了处理这些差异,已经引入了许多数据清理方法。然而,大多数这样的方法都忽略了下游ML模型的要求。因此,在ML管道中利用这些数据清理方法的潜力主要是未知的。在这项工作中,我们引入了一个全面的基准测试,称为REIN 1,以彻底调查数据清理方法对各种ML模型的影响。通过基准测试,我们为重要的研究问题提供答案,例如,数据清理在哪里以及是否是ML管道中的必要步骤。为此,该基准测试研究了38种简单和高级的错误检测和修复方法。为了评估这些方法,我们使用了广泛的ML模型集合,这些模型在14个公开的数据集上进行了训练,这些数据集涵盖了不同的领域,并包含了真实的和合成的错误配置文件。

英文摘要:

Nowadays, machine learning (ML) plays a vital role in many aspects of our daily life. In essence, building well-performing ML applications requires the provision of high-quality data throughout the entire life-cycle of such applications. Nevertheless, most of the real-world tabular data suffer from different types of discrepancies, such as missing values, outliers, duplicates, pattern violation, and inconsistencies. Such discrepancies typically emerge while collecting, transferring, storing, and/or integrating the data. To deal with these discrepancies, numerous data cleaning methods have been introduced. However, the majority of such methods broadly overlook the requirements imposed by downstream ML models. As a result, the potential of utilizing these data cleaning methods in ML pipelines is predominantly unrevealed. In this work, we introduce a comprehensive benchmark, called REIN1, to thoroughly investigate the impact of data cleaning methods on various ML models. Through the benchmark, we provide answers to important research questions, e.g., where and whether data cleaning is a necessary step in ML pipelines. To this end, the benchmark examines 38 simple and advanced error detection and repair methods. To evaluate these methods, we utilized a wide collection of ML models trained on 14 publicly-available datasets covering different domains and encompassing realistic as well as synthetic error profiles.

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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