基于粗糙集的工程特征提取方法研究

发布时间：2018-04-03 21:59

本文选题：粗糙集　切入点：工程特征　出处：《铁道工程学报》2017年06期

【摘要】：研究目的:以往的工程特征选取,大多是根据专家经验或者参照历史工程资料的统计和分析选取,具有一定的主观性。为了准确客观地计算工程项目中各个工程特征对工程估算的影响程度,本文将粗糙集理论运用到工程特性的提取中,提出基于粗糙集的工程特征提取方法。该方法能克服传统工程特征提取方法的主观性,发挥粗糙集的优势,从而提高工程项目特征提取的精度和效率。研究结论:(1)本文利用粗糙集理论计算出各工程项目特征的影响程度,找出对实际工程估算有影响的工程特征条目,更加客观、真实地反映实际工程估算系统情况;(2)粗糙集分析方法利用工程量清单数据本身提供的信息提取工程特征,和传统的工程特征提取方法相比,具有更高的客观性和可信度;(3)将该方法运用于路基工程特征的提取,其与常规计算方法相比更接近实际,更趋于安全和稳定;(4)该研究成果可为铁路工程估算编制提供理论参考,对市政道路及城市轨道交通项目估算编制也有一定的借鉴意义。
[Abstract]:Research purpose: the selection of engineering features in the past is mostly based on the experience of experts or the statistical and analytical selection of historical engineering data, which is subjective to a certain extent.In order to accurately and objectively calculate the influence of engineering features on engineering estimation in engineering projects, the rough set theory is applied to the extraction of engineering characteristics, and a method of engineering feature extraction based on rough set is proposed in this paper.This method can overcome the subjectivity of the traditional engineering feature extraction method and give full play to the advantages of rough set, thus improving the accuracy and efficiency of feature extraction of engineering projects.Conclusion: 1) in this paper, we use rough set theory to calculate the degree of influence of the characteristics of each project, and find out the items of engineering features that have an impact on the actual engineering estimation, which is more objective.The rough set analysis method uses the information provided by the list of quantities data to extract the engineering feature, which is compared with the traditional engineering feature extraction method.With higher objectivity and credibility, this method is applied to the extraction of subgrade engineering features, which is closer to reality and more safe and stable than the conventional calculation method. The research results can provide a theoretical reference for railway engineering estimation and compilation.It also has certain reference significance to the municipal road and the urban rail transit project estimate compilation.
【作者单位】：中铁第四勘察设计院集团有限公司;
【分类号】：TP18;U215.1

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