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71.
The authors consider the problem of simple linear regression when the exogenous and endogenous variables are functional and the design is fixed. They propose an estimator for the underlying linear operator and prove its consistency under some conditions which ensure that the design is sufficiently informative. They consider the classical calibration (or inverse regression) problem and analyze a consistent estimator. They also give a simulation study. The proposed method is not hard to implement in practice. 相似文献
72.
郭晶萍 《吉林师范大学学报》2009,37(3):65-68
仿译词可以按照汉语新词的透明度、英语原词语素间的语法结构、英语原词在构词法中的不同性质、汉语仿译词的音节数进行多角度的分类。仿译词对现代汉语词汇系统的影响有增加新词新义;英文单词一词多义。在仿译过程中用汉语对应词的中心义项翻译英语对应词的边缘义项,造成汉语对应词词义增加;英文单词增加新义,造成汉语对应词增加新义;受仿译影响汉语产生新义语素,有的已经发展为类词缀。仿译词的大量出现体现了语言的经济、新颖、透明和共性原则。 相似文献
73.
移动运营商社会渠道风险预警研究 总被引:1,自引:1,他引:0
基于移动运营商渠道战略转型的需要,将back propagation(BP)神经网络引入移动运营商社会渠道风险预警研究。首先建立社会渠道风险预警指标体系,然后在此基础上构建了基于BP网络的移动运营商社会渠道风险预警模型,并对模型进行了训练和检测。结果表明,该模型在判断社会渠道风险状况和分析社会渠道风险来源方面有实际应用价值。 相似文献
74.
移动支付影响因素分析——国内外移动通信运营商策略对比与研究 总被引:2,自引:0,他引:2
通过国内外移动支付发展现状的对比,分析了移动支付发展的制约因素;同时对国内外移动支付产业的运营模式及发展策略进行分析,结合中国实际提出了加强产业链的构建和整合,增加用户的可接受程度,提高自身技术优势等建议,供移动通信运营商借鉴。 相似文献
75.
全业务运营时代,中国的移动通信业务同质化趋势明显,渠道成为服务竞争的重要载体,其中社会零售渠道成为电信运营企业渠道工作的重中之重。本文选取社会零售渠道作为研究对象,立足企业运营现状,通过层次分析法(AHP)的应用,构建社会零售渠道店面价值评估体系和标准,为渠道运营管理提供可量化、可操作、可考核的标准,并据此提出了社会零售渠道店面效率和价值提升的方案和流程建议。 相似文献
76.
孙祥和 《沈阳建筑大学学报》2010,12(1):73-76
通过对某县级市S专业市场现状的调查,分析了该市场在市场布局、管理水平、知名度和美誉度等方面存在的问题,并从政府功能、市场管理、经营户素质提升、增长极竞争优势等方面提出了目前专业市场改造提升的方向、目标和整体思路。 相似文献
77.
A spatial hidden Markov model (SHMM) is introduced to analyse the distribution of a species on an atlas, taking into account that false observations and false non-detections of the species can occur during the survey, blurring the true map of presence and absence of the species. The reconstruction of the true map is tackled as the restoration of a degraded pixel image, where the true map is an autologistic model, hidden behind the observed map, whose normalizing constant is efficiently computed by simulating an auxiliary map. The distribution of the species is explained under the Bayesian paradigm and Markov chain Monte Carlo (MCMC) algorithms are developed. We are interested in the spatial distribution of the bird species Greywing Francolin in the south of Africa. Many climatic and land-use explanatory variables are also available: they are included in the SHMM and a subset of them is selected by the mutation operators within the MCMC algorithm. 相似文献
78.
马炎秋 《大连理工大学学报(社会科学版)》2015,(3)
港口经营人能否限制赔偿责任取决于其法律地位的正确界定。文章从承运人责任限制的立法依据入手,比较分析中、韩法下港口经营人的法律地位以及法院对提单背面的港口经营人责任限制条款的效力的态度,认为港口经营人应为独立合同人,其不能直接根据《海商法》享有责任限制的权利,但司法实践中应认定提单背面的港口经营人责任限制条款有效。 相似文献
79.
Stephen J. Guastello 《Work and stress》1991,5(1):17-28
This research applied a paradigm for the study of occupational safety and health risks in manufacturing settings to the risks associated with urban and regional transit operation. Subjects were 290 transit operators who completed a questionnaire measuring safety management, danger ratings, beliefs about accident control, work experience, physical stress, social stress, anxiety, environmental hazards, transit hazards (assaults and insults upon the operator, the need to reprimand passengers for various infractions, etc.), vehicle crashes and operator injuries, and alcohol and drug use. Principal findings were that operator injuries were most closely associated with transit hazards, which were more frequent at night and on the least desirable routes. Injuries occurred in a climate of elevated stress and anxiety which may have hampered the operators' ability to respond effectively to potentially dangerous situations. The cusp catastrophe model provided a non-linear dynamic explanation for accident occurrence and was more accurate (R = 0.71) for modelling accident incidence than the next best linear alternative (R = 0.51). 相似文献
80.
The vec operator arranges the columns of a matrix one below the other. When the matrix is symmetric such elements are not distinct but an extraction of only the distinct elements on or below the diagonal forms the operation denoted by vech. For other types of patterned matrices a ‘patterned vech’ operator is defined. The transformations from vech to vec are not uniquely defined. Here we examine properties of linear transformations which overcome the lack of uniqueness and develop properties of such linear transformations. 相似文献