2008 DiMaCaDisguisedMissingDataClean

(Hua et al., 2008) ⇒ Ming Hua, and Jian Pei. (2008). “DiMaC: A Disguised Missing Data Cleaning Tool.” In: Proceedings of the 14th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD-2008). doi:10.1145/1401890.1402023

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Abstract

In some applications such as filling in a customer information form on the web, some missing values may not be explicitly represented as such, but instead appear as potentially valid data values. Such missing values are known as disguised missing data, which may impair the quality of data analysis severely. The very limited previous studies on cleaning disguised missing data highly rely on domain background knowledge in specific applications and may not work well for the cases where the disguise values are inliers.

Recently, we have studied the problem of cleaning disguised missing data systematically, and proposed an effective heuristic approach [2]. In this paper, we present a demonstration of DiMaC, a Disguised Missing Data Cleaning tool which can find the frequently used disguise values in data sets without any domain background knowledge. In this demo, we will show (1) the critical techniques of finding suspicious disguise values; (2) the architecture and user interface of DiMaC system; (3) an empirical case study on both real and synthetic data sets, which verifies the effectiveness and the efficiency of the techniques; and (4) some challenges arising from real applications and several direction for future work.

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	Author	volume	Date Value	title	type	journal	titleUrl	doi	note	year
2008 DiMaCaDisguisedMissingDataClean	Jian Pei Ming Hua			DiMaC: A Disguised Missing Data Cleaning Tool				10.1145/1401890.1402023