| 无偏等维新息模型在路基沉降预测中的应用 |
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| 引用本文： | 谢正文,胡毅夫,余巍伟.无偏等维新息模型在路基沉降预测中的应用[J].中南公路工程,2007,32(1):102-105. |
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| 作者姓名： | 谢正文 胡毅夫 余巍伟 |
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| 作者单位： | 中国计量学院计量技术工程学院 浙江杭州310018(谢正文)，中南大学资源与安全工程学院 湖南长沙410083(胡毅夫，余巍伟) |
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| 摘 要： | 在分析了传统GM(1,1)模型和无偏灰色预测模型的基础上提出了无偏等维新息预测模型,通过运算得出最佳预测值以及预测的最佳维数区,并采用后验差方法对模型的精度进行检验。通过对某高速公路实测沉降数据的分析,证明该模型样本需求量小、计算简单、能动态地反映出实测数据的内在规律,并使预测精度得到有效的提高。证明了将无偏等维新息模型用于预测高速公路路堤沉降量的可行性,在实际运用过程中,为了获得更加准确的结果应不断带入新近的实测数据。
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| 关 键 词： | 无偏 等维新息 路基 沉降预测 最佳维数区 |
| 文章编号： | 1002-1205(2007)01-0102-04 |
| 修稿时间： | 2005-12-27 |
Application of Unbiased New Information Model of Equal in Settlement Prediction of Roadbed |
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| XIE Zhengwen, HU Yifu, YU Weiwei.Application of Unbiased New Information Model of Equal in Settlement Prediction of Roadbed[J].Central South Highway Engineering,2007,32(1):102-105. |
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| Authors: | XIE Zhengwen HU Yifu YU Weiwei |
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| Institution: | 1. Collage of mefrological and engineering, China jiliang University, Hangzhou, Zhejiang 310018, China; 2. School of Resources and safety Engineering, Central South University, Changsha, Hunan 410083, China |
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| Abstract: | After analyzed the traditional GM(1,1) gray model and unbiased gray model,the unbiased new information model of equal dimension is promoted.The optimal prediction value and the optimal dimension are calculated and the post-error method is used to examine the precision of the model.It states through calculation and analysis for the sample that the size of model sample is small,the calculation of model is easy,and the internal laws of the sample can be reflected dynamically,so the forecasting precision can be improved efficiently,and in order to gain more accurate results,the new updated data should be added to the model. |
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| Keywords: | unbiased equal dimension and new information roadbed settlement prediction optimal dimension |
| 本文献已被 CNKI 维普 等数据库收录！ |
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