Partitional approach for estimating null value in relational database

南華大學機構典藏系統 > 科技學院 > 電子商務管理學系(停招) > 期刊論文 > Item 987654321/23546

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題名:	Partitional approach for estimating null value in relational database
作者:	王佳文;Wang, Jia-Wen;Cheng, Ching-Hsue;Chang, Wei-Ting
貢獻者:	電子商務管理學系
日期:	2005-12
上傳時間:	2015-10-05 17:09:13 (UTC+8)
摘要:	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.
關聯:	Lecture Notes in Computer Science vol. 3809 pp.1213-1216
顯示於類別:	[電子商務管理學系(停招)] 期刊論文

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