Partitional approach for estimating null value in relational database

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Title:	Partitional approach for estimating null value in relational database
Authors:	王佳文;Wang, Jia-Wen;Cheng, Ching-Hsue;Chang, Wei-Ting
Contributors:	電子商務管理學系
Date:	2005-12
Issue Date:	2015-10-05 17:09:13 (UTC+8)
Abstract:	In this paper, we propose a partitional approach for estimating null value (1) Firstly, we utilize stepwise regression to select the important attributes from the database. (2) Secondly, we use a partitional approach to build the data category. The data partitioned by the first two important attributes. (3) Thirdly, we apply the clustering method to cluster output data. (4) Fourthly, Calculate the degree of influential between the attributes. There are two ways to calculate the degree of influential. One is correlation coefficient and the other is regression coefficients. (5) To verify our method, this paper utilizes a practical human resource database in Taiwan, and Mean of Absolute Error Rate (MAER) as evaluation criterion to compare with other methods; it is shown that our proposed method proves better than other methods for estimating null values in relational database systems.
Relation:	Lecture Notes in Computer Science vol. 3809 pp.1213-1216
Appears in Collections:	[ Department of Electronic Commerce Management] Periodical Articles

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