高速公路机电工程施工难度系数评估模型

依据高速公路机电工程施工特点,采用层次分析法和模糊数学相结合的方法对高速公路机电系统的施工难度进行综合评估。通过实例分析表明,基于AHP的高速公路机电工程施工难度评估模型计算客观、公正和合理,可为高速公路机电管理在合理配置人、财、物等资源,考核工程施工提供科学的依据。     

Suitability evaluation of urban construction land based on geo-environmental factors of Hangzhou, China

Suitability evaluation of urban construction land based on geo-environmental factors is the process of determining the fitness of a given tract of land for construction. This process involves a consideration of the geomorphology, geology, engineering geology, geological hazards, and other geological factors and is the basis of urban construction land planning and management. With the support of Geographic Information Systems (GIS), grid analysis, and geo-spatial analysis techniques, four factor groups comprising nine separate subfactors of geo-environmental attributes were selected to be used in the evaluation of the suitability level for construction land in Hangzhou. This was based on K-means clustering and back-propagation (BP) neural network methods due to their advantages in fast computing, unique adaptive capacity, and self-organization. Simultaneously, the evaluation results based on K-means clustering and BP neural network were compared and analyzed, and the accuracy evaluation was set. The results showed that the geo-environmental suitability evaluation results of construction land based on K-means clustering and BP neural network were similar in terms of the distribution and scale of construction land suitability level. At the same time, the results of the two evaluation methods were consistent with the variability in suitability level, engineering geology, and hydrogeology of Hangzhou. The results also showed that the real advantage of the methods proposed in this paper lies in their capacity to streamline the mapping process and to ensure that the results are consistent throughout. The suitability level of the urban construction land based on the geo-environment in Hangzhou was divided into four construction sites: land for building super high-rise and high-rise buildings, land for building multistorey buildings, land for low-rise buildings, and nonbuilding land. The results of the suitability evaluation for each category will provide a scientific basis for decision-making in urban development in Hangzhou.     

层次分析与支持向量机组合评价方法的研究与应用

充分发挥层次分析法与支持向量机各自的优势,将两种方法有机结合起来并综合运用于学生创新能力的评价。研究结果表明,这种组合方法是可行和有效的,可很好地应用于高等学校学生的评价工作。     

基于模糊层次分析法的自动化机房供电风险评估

针对电网调度自动化主站供电系统运行状态和潜在发生的风险,构建自动化机房供电评估指标体系,提出了一种基于模糊层次分析法的自动化机房供电风险评估方法,通过权重选择和分级评估,同时考虑各类影响因素间的相互作用,实现了对自动化机房供电的科学评估与判断,结合实例分析证明具有较强的科学性和实用性。     

基于层次分析法的城市反空袭防护目标选择

通过对防护目标的选定因素分析,城市反空袭防护目标指标体系包括目标层、准则层及措施层.利用层次分析法(AHP)法选定城市反空袭中的防护目标,形成数据表、建立并求解判断矩阵及一致性检验,以获得选择最优保护目标的排序权重.经实际运用,所建立的指标体系和方法更有利于合理、科学地选择防护目标.     

Decision making on power customer satisfaction and enterprise profitability analysis using the Analytic Hierarchy Process

The purpose of this paper is to investigate the customer satisfaction of power users using the Analytic Hierarchy Process (AHP) method. The objective is to safeguard the interests of electricity consumers and to increase the profitability of the energy distributer. Compared with previous work based on customer questionnaires describing the level of satisfaction, and where the solution is judged to be random due to the low significance of the studied sample, this paper develops a novel strategy. It is based on a global and transparent process regarding the reliability and economic criteria associated with alternatives, highlighting technical and organisational measures taken by the enterprise. The importance of reliability and economic criteria to the alternatives is processed using reliability indices analysis and cost benefit analysis methods. To analyse the customer's reactions to the decisions taken by the system's manager, and to validate the obtained results using the AHP method, we introduce economic criteria often used in the case of an uncertain future. The obtained results indicate the advantage of investment to improve customer satisfaction and enterprise profitability. It is also shown that reliability criteria are significant in the performance of a business and are an important asset for the justification of new projects.     

Personalised routing for wheelchair navigation

Wheelchair users are confronted with many outdoor obstacles in everyday travel that can make the task arduous and unsafe, especially in unfamiliar environments. However, if wheelchair users are provided with routes that can safely, accurately and efficiently guide them to their destinations, then the difficulty and danger associated with traveling might be significantly reduced. In this article, we present a routing method suitable for wheelchair users by taking into account sidewalk obstacles such as slope, steps, sidewalk condition and sidewalk traffic as are preferred by users. Our method calculates impedance scores for each sidewalk segment, which are then used to determine an optimal route between any given pair of origin-destination addresses in a sidewalk network. We first discuss sidewalk network parameters and a spatial database suitable for wheelchair navigation. Then we discuss our personalised routing approach. We also describe three methods to weight the impedance level of each sidewalk segment and compare the effectiveness of each method through experimentation using the sidewalk network for the University of Pittsburgh campus area.     

地面防空武器系统能力分析模型

地面防空武器系统能力采用层次分析法建模并进行分析.计算各武器系统的总体效能时,对分析元素两两之间的对抗能力重要性进行反复比较,建立两两比较判断矩阵,得到各元素权重向量.再定义掩护面积、毁歼概率、发现目标能力、机动能力、反应时间等参数,最后计算作战能力指数.     

基于层次分析法的车载炮武器系统作战能力

车载炮武器系统是一种新型陆军地面火力打击系统,影响车载炮炮兵分队作战能力的不定因素很多,本文采用层次分析法对其作战能力进行了量化分析,得出了相关数据和结论,为车载炮武器系统在部队的训练和使用提供了一定的参考依据。     

基于改进AHP算法的某武器质量评估研究

武器的质量评估是其研制和维护过程中的重要环节,在定期检验次数有限的情况下,质量评估的精确率一直是影响战斗力生成的瓶颈。以层次分析法（AHP）递阶层次思想为主导,基于BP神经网络,结合指数评估法,提出了质量评估的一种改进算法：基于层次分析的神经网络算法,并给出了建立模型的方法和步骤,模型有效解决了精确率在武器质量评估中的...