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1.
为了避免和减少决策上可能产生的失误,在讨论了模糊层次分析法(FAHP)的基本原理和性质的基础上,将模糊层次分析法以及群组决策的思想应用到专家评定的过程中,研究专家评定系统的设计,结合实际情况,根据多位专家经验不同,专家权重系数也应该不同的原则,设计了一个完整的系统流程,并讨论了专家评定结果的修正问题.最后通过实例说明了这种方法的有效性.  相似文献   

2.
针对考查课成绩评定的模糊性, 运用模糊数学的理论, 开创性的建立了考查课成绩评定的模糊综合评价模型. 为使评定更加科学和适用的广泛性, 创立了一种改进的层次分析法--基于专家调查法的层次分析法, 并将它应用于模糊综合评价法中权值的确定. 最后通过实例说明模型的有效性.  相似文献   

3.
讨论了层次分析法中残缺矩阵可接受的条件,证明了得到完全矩阵所需的最少比较次数,在此基础上提出了一种快速决策的模糊方法。首先,对有n个指标的决策,专家只需要给出n-1次比较的值,然后笔者给出了补足残缺部分的算法,最后用模糊方法计算该矩阵的排序向量。仿真了整个过程,证明该方法简便、科学,为快速准确决策提供了可靠的理论依据和手段。  相似文献   

4.
讨论了层次分析法中残缺矩阵可接受的条件,证明了得到完全矩阵所需的最少比较次数,在此基础上提出了一种快速决策的模糊方法.首先,对有n个指标的决策,专家只需要给出n-1次比较的值,然后笔者给出了补足残缺部分的算法,最后用模糊方法计算该矩阵的排序向量.仿真了整个过程,证明该方法简便、科学,为快速准确决策提供了可靠的理论依据和手段.  相似文献   

5.
从系统的角度构建配送中心选址层次结构图。利用模糊层次权重决策分析法对影响配送中心选址的因素建立评价指标体系,从而得出满意的选址。最后给出一个算例,从6个备选方案中,利用模糊层次权重决策分析法得出最满意的选址方案。  相似文献   

6.
李静斌  张军锋  陈淮 《河南科学》2009,27(4):447-450
以中小跨径钢筋混凝土桥梁为研究对象,以层次分析法为基础,构造桥梁评定层次结构模型并确定层次指标权重;引入模糊数学原理,用等级隶属向量代替打分法确定指标状态;引入均衡函数变权原理,用指标状态对指标权重进行惩罚和修正,使评定过程更接近专家评定的思维模式.通过实例应用,对层次分析评定法、模糊综合评定法和考虑变权的模糊综合评定法3种评定模式进行比较,分析结果表明,考虑变权的桥梁模糊综合评定方法,层次结构清晰,原理科学实用,评定结果更能反映桥梁的客观安全状态.  相似文献   

7.
基于模糊相似关系的决策粗糙集是经典决策粗糙集的延伸与拓展,为当今的研究热点之一。在实际处理数据时,同一对象的同一属性可能具有不同层次,并且在不同层次上取得不同值。为此,该文针对多尺度决策系统,提出多尺度决策系统中基于模糊相似关系的决策粗糙集模型,给出相应的最优尺度选择及约简方法,并讨论了获得一个最优尺度约简的简便算法。利用5组UCI标准数据集对该文所提出的模型与算法进行实例验证,证明其有效性。该文提出的模型进一步拓展了基于模糊相似关系的决策粗糙集在多尺度决策系统下的应用。  相似文献   

8.
硕士学位论文在研究生教育中扮演着重要角色,各高校对硕士学位论文的评价存在着指标的模糊性等缺陷;前人的研究中,给定权重时,层次分析法和专家评定法忽略了人判断的模糊性,针对这一问题选择模糊层次分析法(FAHP)给出权重,有效地改善了专家的判断模糊性;这里将FAHP与模糊综合评价法结合对毕业生的学位论文进行了实证分析.  相似文献   

9.
袁健 《科技信息》2013,(13):397-399
电网建设项目的风险评估通常要面对一个由互相关联的多个部分构成的复杂系统,这种复杂系统的决策属于多因素决策问题,其解决的关键在于如何确定最优解。本文首先介绍了电网建设项目的风险识别的标准,然后基于三角模糊数的模糊层次分析法,在多专家指标权重评价的基础上,对评价准则形成一系列权重组合,采用重心法和双系数法对备选方案的三角模糊数进行排序,获得电网建设风险评价的结论。  相似文献   

10.
从层次关系的模糊描述、模糊关系方程和决策原理等方面,对产品并行设计的模糊决策进行研究,介绍了枪械并行设计模糊决策支持系统开发的指导思想、功能和系统动作过程。  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
Wuthering Heights, Emily Bronte's only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.  相似文献   

14.
The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3~4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰~ -7.8‰, PDB) and matrix dolomites (-6.6‰~ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084~0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078~0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.  相似文献   

15.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

16.
Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.  相似文献   

17.
以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.  相似文献   

18.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

19.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

20.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

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