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从系统的角度出发,对供应链中的整体协调风险进行分类,并针对供应链风险的不确定性等特点,将证据推理方法应用到供应链风险评估中。该方法能够实现确定信息和不确定信息的融合,并能处理有未知信息情况下的风险评估问题,能够为管理决策提供较为客观的依据。 相似文献
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信息安全风险综合评价指标体系构建和评价方法 总被引：1，自引：0，他引：1
信息安全风险评估是组织信息安全的基础和前提,是信息安全领域的前沿课题之一.本文参考国内外相关评价标准,从多层次、多角度构建一套全面反映信息安全风险的评价指标体系.文中分别用层次分析法确定风险评价指标权重,用不确定性推理方法D-S证据理论融合各专家的评价意见,整合后得出综合评价结果.本研究所提供的应用实例可供各组织信息安全风险评价实践参考. 相似文献
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《科技通报》2015,(9)
大数据环境下网络风险评估具有多数据源的特点,导致传统的基于神经网络的网络风险评估模型,由于未对多元数据分类而无法实现网络风险评估,提出一种基于信息融合的大数据环境下网络风险评估模型,将检测结果汇总后获取综合攻击发生概率,选用优化的D-S证据理论方法对相关检测设备的mass函数值进行合成并完成数据源的融合,然后求出攻击发生支持概率,依据态势要素融合求出每个主机节点的网络风险态势,通过态势要素融合求出主机节点的网络风险态势,再根据每个主机节点的安全态势得出每个节点权重的融合,获取网络风险态势值,利用数据源融合、态势要素融合以及节点态势融合获取网络风险态势值,在此基础上分析网络风险评估模型。仿真实验结果表明所提方法具有很高的精度。 相似文献
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网络上的交易和现实生活中的面对面的交易相比,需要更高的交易安全性。因此,移动商务支付中的公平交换协议的设计面临严峻挑战。网络上交换的都是电子信息,交换的内容往往是数字签名。因此,可以认为Internet上的要求具有法律效力的交换是交易双方公平地互换签名的过程。为此,本文就移动商务支付中公平交易进行探讨。 相似文献
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网络舆论风险评估体系探讨 总被引：2，自引：0，他引：2
分析了建立网络舆论风险评估体系的必要性,提出了网络舆论风险评估指标设计原则,对网络舆论风险评估指标的内容和权重进行了设计,提出了层次分析法和模糊综合评价法可以有效地对网络舆论风险进行评估. 相似文献
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基于移动环境下的电子商务的业务模式 总被引：2，自引：0，他引：2
移动商务是当前电子商务研究的一个热点。如何获得利润是移动商务的最终目的,建立良好的业务模式是获得利润的基本保障。本文分析了移动商务的各种业务模式,并指出了其中的一些问题,为建立移动商务系统打下扎实的基础。 相似文献
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对软件项目的投标风险进行评估,是承包方选择项目的依据和提高软件项目成功率的有效手段。本文构建了软件投标项目风险评估的三级评价指标体系;并针对指标存在不确定性的特点,应用ER方法建立了软件项目的投标风险评估模型,对软件投标风险进行了综合评估。该模型解决了评价指标存在的不确定性和不完全信息的问题,案例分析说明该方法对软件投标项目风险评估的有效性和实用性。 相似文献
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企业研发项目风险评估不仅仅是在研发中的风险,也是研发项目成果转化为产品以及投放市场的一系列风险。考虑到评价指标众多而造成了实际问题分析复杂化,提出采用一种降维技术方法———因子分析法进行风险评价,结合实证和因子分析理论探讨企业研发项目风险评估中各步骤所运用的方法,对于企业研发项目风险评估的研究具有一定借鉴意义。 相似文献
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黄海燕 《大科技．科学之谜》2013,(22):131-132
本文通过对电网规划设计与风险评估问题的分析,研究了适用于电网规划设计工作的风险评估应用思路,阐明了相关风险评估指标的计算方法,有一定的实践操作价值。 相似文献
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Growing evidence shows that mobile commerce will increase consumers’ impulse buying behavior. However, existing study examining the impact factors on individuals’ impulse buying in mobile commerce is limited. Drawing on stimulus-organism-response (S-O-R) paradigm, this study focuses on situation factors and reaction factors in mobile commerce to examine impulse buying. Building on prior literature of browsing and motivation theory, this study views hedonic browsing and utilitarian browsing as two key drivers on impulse buying in mobile commerce. This study adopts partial least squares estimation to analyze the data obtained from an online questionnaire. Two main findings emerge. First, three situation factors (portability, visual appeal and interpersonal influence) differently affect hedonic browsing and utilitarian browsing. Second, hedonic browsing directly and positively influences consumers’ urge to buy impulsively, whereas utilitarian browsing indirectly influences consumers’ urge to buy impulsively through hedonic browsing. Discussions, limitations, and implications are also presented in the paper. 相似文献
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关于可视化EC模式的研究——基于GIS与PIS互嵌集成的EC模式设计 总被引：2，自引：0，他引：2
信息定位对于EC具有商业意义，由于EC信息内在具有多维特征，因此，在对文本信息进行逻辑链接基础上将空间概念引入EC系统，会形成一种新的EC模式，基于GIS与PIS互嵌集成的EC模式是一种全新的商务模式，它通过对于商务信息的空间定位，降低了EC交易成本，使交易决策具有感性依据。这种EC模式的特点在于对商务信息进行了可视化表达。确切，直接地刻划了交易方与交易环境的空间信息特征，对于交易双方直观地进行EC活动具有实际意义。 相似文献
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随着移动通信技术的发展和移动设备的普及,企业管理将逐渐进入移动商务时代。移动商务的优越性使得供应链成本管理面临新一轮的机遇和挑战。本文介绍了移动商务和移动供应链管理模式,并系统地阐述了移动商务环境下的供应链成本管理。 相似文献
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面对移动互联网快速向社会渗透的这一现实背景,是否及如何采纳移动商务是企业必须思考的问题。尽管目前已经有大量移动商务采纳的文献,但是大多数移动商务采纳研究都停留在个人用户视角,而只有少部分学者开始关注企业移动商务采纳行为。对目前企业移动商务采纳文献从理论基础、国内研究、国外研究等方面进行系统梳理,进一步对影响企业移动商务采纳的因素进行总结,提出企业移动商务采纳影响因素的分析框架,并在对现有文献述评的基础上提出下一步的研究方向。 相似文献
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Consumers can conduct mobile commerce via their smartphones. They can search for products and when ready, they pay and have the products delivered to their homes. By sharing personal information, they receive faster and more customized service. Because of the risk of loss of privacy, consumers need to balance their privacy concerns against the perceived value of enhanced mobile commerce. In this empirical study, the unified theory of acceptance and use of technology (UTAUT2) is modified where perceived value replaces price value to represent the value of an IT artifact that has no direct costs attributable to it. The framework is extended to include constructs from the privacy calculus. In addition, the construct of personal innovativeness is added as a moderator with the anticipation that owners of smartphones who are more personally innovative will be more willing to share information. From an empirical study of Canadian smartphone owners, the results show that perceived privacy concerns influence perceived value and that intention to use is significantly influenced by hedonic motivation and perceived value. 相似文献
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The popularity of mobile devices has ushered in the prosperity of mobile commerce, yet research on mobile advertising and mobile marketing remains scant. Marketing ads possessing higher media richness generally have a positive effect on consumer decision-making, because rich media conveys more information, but mobile ads with richer media imply higher costs for both the marketer and the audience. The limitations of mobile devices have further highlighted the difficulty of mobile advertising and the issue of advertising costs. Selecting which media to deliver the appropriate information is the latest research trend, but few studies have applied the media richness theory to explain mobile ads’ effect on consumer behavior. This research thus explores the impact of media richness on consumer behavior at different AISAS (attention, interest, search, action, and share) stages, adopting experimental research, convenient sampling, and online questionnaire to collect data. From a total of 424 valid questionnaires, we find that media richness has a greater influence on the three early stages of AIS while having a lower impact on the later stages of AS. This research thus suggests that firms employing mobile ads should choose high richness media for those potential customers who are at the early stage of consumer behavior (AIS). For those who at the later stage (AS), it is good enough for marketers to utilize medium richness mobile ads. Following this suggestion, marketers can place mobile ads more precisely, thus improving the likelihood of a reduction in advertising costs for both the marketer and audience. As mobile ads with high media richness are more effective for high perceived risk products, firms need to use high richness media when they are promoting high perceived risk products even when potential consumers are at the later stage of AS. This research contributes to marketers dedicated to using a mobile advertisement strategy and helps refine both online consumer behavior and the media richness theory when including the context of mobile commerce. 相似文献
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针对电子商务中买卖双方交易匹配问题,文章将主体给出的多粒度语言评价信息转化成三角模糊数形式,运用逼近理想解法计算主体综合评价与理想评价的相对贴近度,并以其表示匹配主体的满意度。构建综合考虑匹配主体满意度一致性和最大化的优化模型,求解该模型获得匹配结果。通过实例说明所提方法的可行性和有效性。 相似文献
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Nadia Jimenez Sonia San-Martin Nuria Puente 《The Journal of High Technology Management Research》2019,30(1):15-26
The mobile technology involves an unexplored world of doing business and consumer behavioral change that constitutes a revolution in the application of technologies to marketing. A key factor in the adoption of mobile commerce is the compatibility that the consumer perceives with his/her life. Given that the research on compatibility with mobile purchases made so far treats it as an antecedent of adoption, this pioneer research studies the influencing role of two more personal factors (self-efficacy and innovativeness) and two factors more related to the shopping (involvement and perceived entertainment). The model was tested using PLS with information from 583 Mexican mobile buyers. Our results show a positive effect of innovativeness, involvement and perceived entertainment on compatibility. On the contrary, self-efficacy does not seem to influence the perception of compatibility of mobile shopping with consumer life. This work has important implications for the practice of professionals dedicated to mobile commerce. 相似文献