Statistical Distortion: Consequences of Data Cleaning
Statistical Distortion: Consequences of Data Cleaning
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DOI:
10.14778/2350229.2350279
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发表时间:
2012-07
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通讯作者:
T. Dasu;J. Loh
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文献类型:
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作者:
T. Dasu;J. Loh
We introduce the notion of statistical distortion as an essential metric for measuring the effectiveness of data cleaning strategies. We use this metric to propose a widely applicable yet scalable experimental framework for evaluating data cleaning strategies along three dimensions: glitch improvement, statistical distortion and cost-related criteria. Existing metrics focus on glitch improvement and cost, but not on the statistical impact of data cleaning strategies. We illustrate our framework on real world data, with a comprehensive suite of experiments and analyses.