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分析了网络舆情演变过程中的受众注意力资源的分配机制,提出了网络危机舆情势能等相关概念,通过NetLogo平台进行多主体建模,模拟了危机事件爆发后危机话题和注意力资源的变动过程,探讨了受众注意力资源分配机制对网络危机舆情演变的影响,并通过改变模型中相关参数对演变规律进行了描述,提出相关的管理启示。Abstract： The allocation mechanism of audiences＇ attention resources in the online public opinion evolution process is discussed. The concepts of the potential energy of the online public opinion on crisis and so on are put forward. By the use of the multi-agent modeling method based on NetLogo platform,this article simulates the change process of crisis topics and attention resources after the crisis incidents break out,discusses the influence of the allocation mechanism of audiences＇attention resources on the evolution of online public opinion on crisis,and describes the evolution law by changing the relevant parameters of the model. Finally,some inspirations for crisis information management are offered. 相似文献
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本文从知识位势的角度出发,对战略联盟的稳定性进行分析。借助Logistic规律模拟联盟竞合过程,得出联盟知识共享的稳定解;运用MATLAB软件进行模拟仿真,通过系统仿真与算法推演得出联盟稳定性与联盟时间长短有密切关系。研究结果为提升战略联盟的稳定性和内部知识共享提供参考依据。Abstract： This paper analyzes the stability of strategic alliance from the perspective of knowledge poten- tial. Using Logistic rule to simulate the competition and cooperation process of strategic alliance,the paper obtains the stable solution for knowledge sharing in strategic alliance. The paper uses MATLAB software for simulation. Through system simulation and arithmetic deduction,the paper finds out that the stability of strategic alliance has close relationships with the length of the cooperative time of strategic alliance. The research results provide reference for promoting the stability and internal knowledge sharing of strategic alliance. 相似文献
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首先介绍主题图的概念及数据模型,并与传统知识组织方法进行了比较分析,然后探讨了主题图应用于数字图书馆知识组织中的可行性,提出了一种新的基于主题图的数字图书馆知识组织模型,最后通过实例分析对模型进行了验证,为我国数字图书馆知识组织建设的具体运用提供有力的支持。Abstract： This paper firstly introduces the concept and data model of topic maps,and makes a comparative analysis of the traditional knowledge organization methods. The paper then discusses the feasibility of the application of topic maps in knowledge organization in digital libraries,and proposes a new model of knowledge organization in digital libraries based on topic maps. Finally,the paper validates the model with case analysis,which provides strong support for the specific implementation of knowledge organization in digital libraries in China. 相似文献
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How to effectively use the special fund for importing liberal arts books is an important problem. In this paper, two basic indices, information quantity and information value, are proposed. The system of factors involved in the actual measurement and the computing formulas are described. The paper points out the importance of sharing imported books and discusses how to realize resources sharing. 相似文献
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信息生命周期管理作为一种信息分级存储策略,可以优化存储、降低成本。本文针对当前个性化信息服务中的信息资源建设问题进行剖析,提出了基于信息生命周期管理的个性化信息资源建设模型,以实现信息资源的分级存储和分级服务,解决用户需求变化时没有价值的信息仍占用存储介质的问题以及资源信息存储的无序性等问题。最后,对模型实现存在的问题进行了分析和总结。Abstract： Information lifecycle management,as a strategy for information hierarchical storage,can optimize storage and reduce cost. This paper analyzes the problem of information resources construction in the present personalized information service,and then proposes a model of personalized information resources construction based on information lifecycle management,which can fulfill the hierarchical storage and hierarchical service of information resources,and solve the problem of storage media taken up by the information with no value as the user demand changes,and the problem of out-of-sequence storage of information resources. Finally,the paper analyzes and summarizes the problems in constructing the model. 相似文献
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知识地图在多领域本体语义互联中的应用 总被引：2，自引：0，他引：2
以数字信息资源组织的多领域本体语义互联为切入点,通过对其目前问题的分析,提出引入知识地图技术解决本体的映射和聚类问题,构建了基于知识地图的多领域本体语义互联框架模型。Abstract： Starting with the semantic interconnection of multi-domain ontology in digital information resources organization,and by analyzing the problems existing therein,this article proposes to use the knowledge map technology to solve the mapping and clustering problem of ontology.The article constructs a framework model of semantic interconnection of multi-domain ontology based on knowledge map. 相似文献
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文章首先对我国现有信息服务模式的局限性与缺位现象进行探讨,并基于美国学者R.J.Sternberg的＂创造力投资理论＂论述完善的信息服务模式对人文社会科学创新的重要性。在此基础上提出一种面向科研的信息服务相关性模型。最后对构建信息服务新模式提出自己的一些看法。Abstract： This paper first discusses the limitations and vacancies of the existing information service mode in China. Based on the American scholar Robert J. Sternberg＇s Creativity Investment Theory,the paper discusses the importance of perfect information service mode to innovation of Humanities and Social Science. On this basis,an information service-related model oriented to scientific research is proposed. Finally,the paper gives some ideas of how to construct the new information service mode. 相似文献
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探讨了供应链管理过程中的几个决策问题,针对这些决策问题,本文提出一个供应链智能集成模型,加强了供应链的信息集成,实现了对供应链的智能协同管理。由多Agent组成的信息集成模型具有很强的动态性。为避免交互负载,采用联邦多Agent结构,以本体论作为交互基础,有效地支持供应链的决策。Abstract： Several decision problems in the supply chain management process are discussed.In order to solve these problems,this paper proposes an intelligent integration model of supply chain,which enhances the information integration of supply chain and realizes the intelligent collaborative management of supply chain.The multi-agent information integration model is highly dynamic.In order to avoid the burden of interaction,the paper uses the federation multi-agent architecture and uses the theory of ontology as the basis for interaction,which will support the decision of supply chain effectively. 相似文献
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我国中小企业信息化制约因素及政策建议 总被引：6，自引：0，他引：6
Compared with the large-sized enterprises, the small and medium-sized enterprises have the characteristics of small scale, low management level, fragile fund basis and low capacity to resist business risk and external impact. Starting with the problems faced by the small and medium-sized enterprises in modern competition and informatization process, this paper explores the concrete policies and measures the small and medium-sized enterprises should adopt in the informatization construction. 相似文献
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中小企业融资解困一直是政策制定者亟待解决的问题及学者关注的课题.本文从基金资产配置的视角,展开了中小企业融资解困方式的创新研究.为研究方便,本文提出了存在非流动资产时机构投资者的最优资产配置模型.其中,对中小企业的融资视为非流程资产,而基金看作机构投资者.在模型中,机构投资者的目标函数是财富效用的期望增长率.本文将该类资产配置问题简化为有限时间上的控制问题,给出了价值函数满足的偏微分方程以及对应的初始条件、终止条件以及边界条件,求解了最高的财富效用期望增长率及对应的最优资产配置.文章的最大贡献是提出了一种创新研究方式,在某种程度上实现了基金、中小企业的双赢局面. 相似文献
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在分析中国企业年金运营特点和代理人激励理论的基础上,认为中国企业年金受托人的显性激励是中国企业年金运营风险控制的关键问题之一。并从企业年金委托代理关系分析出发,构建了企业年金受托人激励模型。 相似文献
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在委托代理的框架下,从理论上研究了固定费率与业绩报酬激励机制对基金风险承担的影响,并分四种情况利用数值模拟的方法比较分析了基金承担风险的大小,发现费率参数的设计对基金承担风险的激励有着重要的作用。受限于中国基金市场中的数据,采用EGARCH模型实证研究了四种情况中的一种,即固定费率相同的情况下业绩报酬激励机制具有更大的风险承担激励,经验数据支持这个理论研究结论。最后,针对理论和实证研究结论,对中国基金激励机制的设计提出了几点建议。 相似文献
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为解决企业对R&D资金在不同项目之间的分配问题,在研究和借鉴以往决策方法的基础上,构建了适用于大型高科技企业R&D资金分配的"研发树"模型。该方法使R&D预算系统既实现了宏观上的指导功能,又具有微观上的资金控制和配置功能。 相似文献
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高校图书馆文献采购资金的灰色优化配置 总被引：1，自引：0，他引：1
采用灰色线性规划的方法对高校图书馆的文献采购资金进行优化配置。该方法可根据学校的办学目标和学科发展状况调整采购方案，也可对今后的采购资金分配进行最优化预测。 相似文献
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引导创业企业开展创新活动是创业投资政府引导基金发挥引导机制的重要维度。文章首先基于市场失灵理论和资源基础理论,提出创业投资政府引导基金引导科技型创业企业创新的激励效应假说、累积效应假说和迟滞效应假说;然后将科技型中小企业创业投资引导基金投资保障的创业企业名录与新三板挂牌企业名单匹配,筛选获得2008~2014年间至少获得一次引导基金投资保障且截至2016年已在新三板挂牌的50家创业企业,以此作为研究样本,使用固定效应模型,检验了引导基金对创业企业创新产出的影响。研究发现,受引导基金支持的创业企业比未受引导基金支持的创业企业有更多创新产出;获得引导基金投资保障的次数越多,创业企业创新产出越多;创业企业创新产出和引导基金累计保障年限之间存在正U型关系,进一步的门限估计检验表明门槛值为5年。研究结论为制定有利于创业企业创新的公共政策提供了经验证据。 相似文献
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在投资者与创业投资家之间的委托代理中,构建了他们之间的报酬机制合约优化模型,求出了在创业投资家最佳的努力水平下,投资者愿意支付给创业投资家的创业基金利润的最优比例以及创业投资家愿意注入的最优资本金额,进而从报酬激励和风险承担的角度分析对创业投资家的激励,以降低创业投资家的道德风险。 相似文献
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This paper analyses how the funding for research grants was allocated from a specific research fund which aimed to support innovative research projects with the potential to have research impact by reducing carbon emissions. The fund received a total of 106 proposals, of which 27 were successful at obtaining financial support. Our aims were to test which factors influenced the funding decision and to discover whether or not and to what extent the fund met its intended objectives through the allocation of monies. The allocation process and its outcomes were analysed using correlation, logistical and linear regression to test our research hypotheses. Using this research funding process as a single study, we found that trying to clear the impact-innovation double hurdle in a single funding initiative ultimately compromises both goals. This paper therefore contributes to our understanding of innovation management within the context of carbon emission reduction and explains which factors influenced success in securing research monies through the funding process. 相似文献
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选取图书馆员工素质、文献资源等11个指标,以因子分析法,分析18所＂985＂高校与30所普通高校图书馆在资源配置上的差异。结果表明,图书馆资源总量、人力资源质量和经费投入是高校图书馆资源建设的重要基础;＂985＂高校的图书馆资源配置整体上处于较高水平,普通高校在员工素质、经费投入等方面有待进一步提升。 相似文献