全球视域下奥林匹克文化资源的开发与利用——基于中国与加拿大对比研究

从2008年和2010年夏冬奥会主场作战的中国与加拿大体育运动发展现状入手,研究多元文化状态下,不同政治与社会制度国家发展体育运动,开展国际体育文化交流特点,以期对全球化背景下如何充分利用奥林匹克文化资源,为国家崛起、体育发展、文化安全和民族振兴服务进行积极探索。     

Initiating private-collective innovation: The fragility of knowledge sharing

Incentives to innovate are a central element of innovation theory. In the private-investment model, innovators privately fund innovation and then use intellectual property protection mechanisms to appropriate returns from these investments. In the collective-action model, public subsidy funds public goods innovations, characterized by non-rivalry and non-exclusivity in using these innovations. Recently, these models have been compounded in the private-collective innovation model where innovators privately fund public goods innovations. Private-collective innovation is illustrated in the case of open source software development. This paper contributes to the work on this model by investigating incentives that motivate innovators to share their knowledge in an initial situation, before there is a community to support the innovation process. We use game theory to predict knowledge sharing behavior in private-collective innovation, and test these predictions in a laboratory setting. The results show that knowledge sharing is a coordination game with multiple equilibria, reflecting the fragility of knowledge sharing between innovators with conflicting interests. The experimental results demonstrate important asymmetries in the fragility of knowledge sharing and, in some situations, more knowledge sharing than theoretically predicted. A behavioral analysis suggests that knowledge sharing in private-collective innovation is not only affected by material incentives, but also by social preferences such as fairness. The results offer general insights into the relationship between incentives and knowledge sharing and contribute to a better understanding of the initiation of private-collective innovation.     

Stability and dissipative analysis for a class of stochastic system with time-delay

This paper deals with the stability and dissipative problem of a class of stochastic hybrid system. The system under study involves Markovian jump, impulsive effects and time delay, which are often encountered in practice and are the sources of instability. Our attention is focused on analysis of whether the stochastic hybrid system with time-delay is stochastically asymptotically stable and strictly (Q, S, R) dissipative. By introducing an extra artificial time instance, the equivalent system is obtained and the sufficient conditions are derived by using linear matrix inequality (LMI) techniques. The main results of this paper unify the existing results on H_∞ control.     

基于分块和统计相结合的新闻正文抽取

本文提出一种结合网页分块与统计的方法来抽取新闻类网页中的正文。首先,在网页解析的基础上根据标签信息对网页进行分块处理,并计算出每一个内容块的实际长度;其次,在得到内容块的长度集合后,计算这些内容块长度的均值,同时利用方差能反映一组数据的波动大小的特性,按内容块长度降序排列并依次计算去掉最大内容块后的方差变化情况,寻找最有可能的正文内容块;最后随机选取了一些新闻网页进行测试,结果显示准确率可达96%,充分证明了该方法的有效性。     

企业个人隐性知识转移激励机制研究

本文首先分析了知识源在隐性知识转移发生前、中、后的各项成本,然后通过将激励理论、知识管理理论以及人力资本理论相结合,探讨了知识源在隐性知识转移中的各项需要,并明确了企业个人隐性知识转移的激励模式,在此基础上,根据相应的分析结果设计了促进知识源转移知识的激励机制。     

基于信息抽取的文本知识挖掘模型研究

从文本知识挖掘的定义入手,分析了文本知识挖掘的关键技术,并在此基础上建立了基于信息抽取的文本知识挖掘模型,最后通过实例(DiscoTEX)说明这个模型是可行的。     

英语学习过程诸因素探讨

在外语／二语学习过程中,必须充分考虑语言环境、社会语言环境、学习风格、学习年龄、学习阶段等因素,这些因素对学习者努力的结果有直接的决定性的影响。它们影响外语／二语学习者是否以及怎样充分利用可以得到的一切学习机会,而是否以及怎样充分利用可以得到的一切学习机会又决定外语／二语学习者能否学得目的语。外语／二语教师应该根据这些因素采取相应的教学策略和途径,来满足外语／二语学习者的学习需求。二语／外语教师在学习过程中的重要作用,体现于引导学习者以最适合自己学习风格的学习方法充分地有效地利用所能得到的二语／外语学习机会。     

Unifying knowledge iterative dissemination and relational reconstruction network for image–text matching

Image–text matching is a crucial branch in multimedia retrieval which relies on learning inter-modal correspondences. Most existing methods focus on global or local correspondence and fail to explore fine-grained global–local alignment. Moreover, the issue of how to infer more accurate similarity scores remains unresolved. In this study, we propose a novel unifying knowledge iterative dissemination and relational reconstruction (KIDRR) network for image–text matching. Particularly, the knowledge graph iterative dissemination module is designed to iteratively broadcast global semantic knowledge, enabling relevant nodes to be associated, resulting in fine-grained intra-modal correlations and features. Hence, vector-based similarity representations are learned from multiple perspectives to model multi-level alignments comprehensively. The relation graph reconstruction module is further developed to enhance cross-modal correspondences by constructing similarity relation graphs and adaptively reconstructing them. We conducted experiments on the datasets Flickr30K and MSCOCO, which have 31,783 and 123,287 images, respectively. Experiments show that KIDRR achieves improvements of nearly 2.2% and 1.6% relative to Recall@1 on Flicr30K and MSCOCO, respectively, compared to the current state-of-the-art baselines.     

认知语境与英语阅读理解

阅读理解是一个明示一推理的动态认知过程。本文在探讨关联理论出现之前的阅读模式所存在不足的基础上,阐析了认知语境对句子、篇章解读的影响,对认知语境的研究将有助于提高语言理解的效率。     

论创新源对文化环境的依赖 --诱致工业实验室发生区域转移的一种文化解释

科技创新是在特定文化环境中进行的,创新源的生长受文化环境的影响和制约。文化环境为科技创新提供了思维方式、价值取向、生活习性、资源配置格局、规制务件和环境氛围,是诱致工业实验室发生区域转移的根本原因。人是实践着的能动主体,主体与环境之间的互动决定着创新源的生长及其变迁。文化环境不仅影响行为主体实施创新的选择方向,而且作为一种既定的前提性因素影响主体的行为方式、科技资源配置格局以及科技创新的全过程。任何环境都具有一定的“承栽量”,并非所有的环境都有利于创新,但是,环境是可以塑造和改变的。因此,培育创新源成长的关键在于形成一个有利于创新源生长的社会价值取向、行为方式、资源配置格局、规制条件和环境氛围。