淡江大學機構典藏:Item 987654321/82975
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    题名: Data preprocessing for artificial neural network applications in prioritizing railroad projects – a practical experience in Taiwan
    作者: Min-Yuan,Cheng
    贡献者: 淡江大學土木工程學系
    关键词: project ranking;data preprocess;analytic hierarchy process;artificial neural networks;data preprocessing matrix;railroad
    日期: 2012-11-21
    上传时间: 2013-03-12 14:56:51 (UTC+8)
    出版者: Vilniaus Gedimino Technikos Universitetas * Leidykla Technika
    摘要: Financial constraints necessitate the tradeoff among proposed railroad projects, so that the project priorities for implementation and budget allocation need to be determined by the ranking mechanisms in the government. At present, the Taiwan central government prioritizes funding allocations primarily using the analytic hierarchy process (AHP), a methodology that permits the synthesizing of subjective judgments systematically and logically into objective consensus. However, due to the coopetition and heterogeneity of railway projects, the proper priorities of railroad projects could not be always evaluated by the AHP. The decision makers prefer subjective judgments to referring to the AHP evaluation re- sults. This circumstance not only decreased the AHP advantages, but also raised the risk of the policies. A method to con- sider both objective measures and subjective judgments of project attributes can help reduce this problem. Accordingly, combining the AHP with the artificial neural network (ANN) methodologies would theoretically be a proper solution to bring a ranking predication model by creating the obscure relations between objective measures by the AHP and subjec- tive judgments. However, the inconsistency between the AHP evaluation and subjective judgments resulted in the inferior soundness of the AHP/ANN ranking forecast model. To overcome this problem, this study proposes the data prepro- cessing method (DPM) to calculate the correlation coefficient value using the subjective and objective ranking incidence matrixes; according to the correlation coefficient value, the consistency between the AHP rankings and subjective judg- ments of railroad projects can be evaluated and improved, so that the forecast accuracy of the AHP/ANN ranking forecast model can also be enhanced. Based on this concept, a practical railroad project ranking experience derived from the Insti- tute of Transportation of Taiwan is illustrated in this paper to reveal the feasibility of applying the DPM to the AHP/ANN ranking prediction model.
    關聯: Journal of Civil Engineering and Management 18(4), pp.483-494
    DOI: 10.3846/13923730.2012.699914
    显示于类别:[土木工程學系暨研究所] 期刊論文

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