淡江大學機構典藏:Item 987654321/98556
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    題名: Estimating Distribution of Concrete Strength Using Quantile Regression Neural Networks
    作者: Yeh, I-Cheng
    貢獻者: 淡江大學土木工程學系暨研究所
    關鍵詞: Compressive Strength;Concrete;Distribution;Neural Network (NN);Quantile Regression
    日期: 2014-07
    上傳時間: 2014-08-12 20:49:19 (UTC+8)
    出版者: Pfaffikon: Scientific.Net
    摘要: This paper is aimed at demonstrating the possibilities of adapting Quantile Regression Neural Network (QRNN) to estimate the distribution of compressive strength of high performance concrete (HPC). The database containing 1030 compressive strength data were used to evaluate QRNN. Each data includes the amounts of cement, blast furnace slag, fly ash, water, superplasticizer, coarse aggregate, fine aggregate (in kilograms per cubic meter), the age, and the compressive strength. This study led to the following conclusions: (1) The Quantile Regression Neural Networks can build accurate quantile models and estimate the distribution of compressive strength of HPC. (2) The various distributions of prediction of compressive strength of HPC show that the variance of the error is inconstant across observations, which imply that the prediction is heteroscedastic. (3) The logarithmic normal distribution may be more appropriate than normal distribution to fit the distribution of compressive strength of HPC. Since engineers should not assume that the variance of the error of prediction of compressive strength is constant, the ability of estimating the distribution of compressive strength of HPC is an important advantage of QRNN.
    關聯: Applied Mechanics and Materials 1017, pp.584-586
    顯示於類別:[土木工程學系暨研究所] 期刊論文

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