Fuzzy clustering evaluation of quot; shell quot; resource quality of listed companies 上市公司财务状况评价研究
Application of gray clustering evaluation method in outburst prediction in wugou coal mine 灰色聚类评估法在五沟煤矿突出预测中的应用
In this paper , the influencing factors of acoustic environmental quality of residential area including noise from transportation , industry , construction and society were analyzed , the comprehensive influence of acoustic environmental quality of residential area between indoor and outdoor ones was studied , the evaluation index system of acoustic environmental quality of residential area based on influencing elements of acoustic environmental quality of indoor and outdoor ones was established , the control standard and improvement strategies including planning , technology and management of acoustic environmental quality of residential area were put forward , the gray clustering evaluation model of acoustic environmental quality of residential area was set up , and a case was evaluated 摘要分析了居住区声环境质量的影响因素,包括交通、工业、施工和社会生活等噪声;研究了居住区声环境质量是居住区室外声环境质量和室内声环境质量的综合影响反映;构建了基于居住区室外声环境质量和住宅室内声环境质量影响因子的居住区声环境质量评价指标体系;提出了居住区声环境质量分级控制标准;从规划、技术和管理的等方面提出了居住区声环境质量的控制措施和改善方案;建立了基于灰色聚类分析方法的居住区声环境质量评价模型,并进行了实证评价应用。
Secondly , rules to set indicators - system and the indicators - system are built according to the characteristics of highway and bridge project post - evaluation . an grey comprehensive cluster post - evaluation algorithm is built with the help of grey cluster evaluation , methodology of with and without comparison , ahp etc . dates of evaluating objects are computed through contrasts value and threshold value . the steps of grey comprehensive cluster post - evaluation algorithm are given 其次,根据路桥投资项目后评价的特征,指出路桥投项目综合后评价指标体系设置原则,并设立综合后评价指标体系;结合灰色聚类评估方法、对比法、层次分析法、专家调查法等建立灰色综合聚类后评价模型的算法,通过建立的对比值、前后变化阈值实现对指标数据的获取,进而提出了论文所建立的灰色综合聚类后评价模型的算法和步骤。
In view of the incompleteness and uncertainty of the various factors affecting the slope stability , a series of new methods of slope stability evaluation , such as fuzzy comprehension evaluation method , grey cluster evaluation method , reliability evaluation method , and neural network evaluation method , etc . have been proposed 突破传统的确定论的思维方式,在边坡稳定性分析中充分考虑由各种因素所引起的不确定性是边坡稳定性研究的发展趋势。同时,充分挖掘和利用大量的、其稳定性状况已经被研究清楚的边坡的成功经验有着重要的实际意义。
The main uncertain methods of the slope stability evaluation , such as fuzzy comprehension evaluation method , grey cluster evaluation method , reliability evaluation method , and neural network evaluation method , etc . are fully discussed , and their developing history and research situation are introduced in detail , and some problems which need to be studied are presented , and the studying contents iv and work achievement are introduced ( 2 )详细地评述了边坡稳定性的主要不确定性分析方法,如可靠性分析方法、模糊综合评价方法、灰色系统评价方法,以及神经网络评价方法等等。介绍了它们的发展历史和研究现状,指出了它们存在的主要问题与不足之处。在此基础上,提出了本文研究工作的思路和主要内容。