Entropic component analysis and its application in geological data

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题名:	Entropic component analysis and its application in geological data
作者:	Tseng,CY;Chen,CC
贡献者:	地球科學系
关键词:	1999 CHI-CHI;MODEL SELECTION;VARIABLE SELECTION;CROSS-ENTROPY;EARTHQUAKE;TAIWAN;FIELD
日期:	2011
上传时间:	2012-03-27 17:36:49 (UTC+8)
出版者:	國立中央大學
摘要:	We present an entropic component analysis for identifying key parameters or variables and the joint effects of various parameters that characterize complex systems. This approach identifies key parameters through solving the variable selection problem. It consists of two steps. First, a Bayesian approach is utilized to convert the variable selection problem into the model selection problem. Second, the model selection is achieved uniquely by evaluating the information difference of models by relative entropies of these models and a reference model. We study a geological sample classification problem, where a brine sample from Texas and Oklahoma oil field is considered, to illustrate and examine the proposed approach. The results are consistent with qualitative analysis of the lithology and quantitative discriminant function analysis. Furthermore, the proposed approach reveals the joint effects of the parameters, while it is unclear from the discriminant function analysis. The proposed approach could be thus promising to various geological data analysis. (C) 2011 Elsevier Ltd. All rights reserved.
關聯:	COMPUTERS & GEOSCIENCES
显示于类别:	[地球科學學系] 期刊論文

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