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我国政府信息公开的渠道、问题和展望 总被引：5，自引：0，他引：5
政府信息公开是当今社会的热点研究课题，对构建民主法制社会具有深远的意义。本文分析了我国政府信息公开的主要渠道，重点讨论了其存在的问题以及问题的解决方式，最后对我国政府信息公开的未来发展进行了综述。 相似文献
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基于本体与规则的语义推理研究 总被引：1，自引：0，他引：1
为解决本体相关概念的共享和信息集成,发现本体间的语义关联,提出了本体与规则整合下的语义推理模型ORRM,构建了家庭本体FO。将推理集中在两个不同层次,第一层的推理使用Racer推理机进行描述逻辑的推理,检测本体的冲突。第二层使用本体中表示的概念和属性制定成员规则库,采用基于XML的SWRL呈现规则和Jess推理引擎,增加了本体概念问语义的关联。该模型在本体中引入规则表示,弥补了OWL DL在推理机制上的不足,推导出的新本体在原本体的基础上实现了本体成员间隐含关系的语义推理,完善了本体知识库的内容。在语义Web领域,该模型的应用能够提高本体知识的利用率。 相似文献
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为了提高文本挖掘的深度和精度,研究并提出了一种基于领域本体的语义文本挖掘模型.该模型利用语义角色标注进行语义分析,获取概念和概念间的语义关系,提高文本表示的准确度;针对传统的知识挖掘算法不能有效挖掘语义元数据库,设计了一种基于语义的模式挖掘算法挖掘文本深层的语义模式.实验结果表明,该模型能够挖掘文本数据库中的深层语义知识,获取的模式具有很强的潜在应用价值,设计的算法具有很强的适应性和可扩展性. 相似文献
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通常用于评论性文本极性挖掘的方法是采用有监督的学习算法完成的,但有监督的学习算法需要大量人工标注的训练集,而且其在处理文本集时还会面临维数灾难、稀疏向量、高时空复杂度、低召回率和精确率等问题而无法用于海量的文本极性分类任务。经典的K-means均值聚类算法是聚类分析中使用最为广泛的算法之一,其具有诸多的优良特性和不足。针对上述情况,本文将语义引入经典K-means均值聚类算法中,构造了专门针对中文评论文本极性判断的极性词语义词典,提出了一种基于语义准则函数的K-means均值聚类算法。这项研究是运用基于语义的聚类方法对汉语主观性文本处理的一次探索。实验结果显示总平均召回率达到了80.70%,总平均精确率达到了67.75%,说明该算法是可行和有效的。 相似文献
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得益于群体性交互平台的发展和移动通信技术的推进,社会大众正日益广泛地参与网络信息的创建和组织,网络信息组织朝着组织主体多元化、组织对象泛化和集成化、组织内容揭示深入化和语义关联化、组织方式人机智能综合化和组织结果传播社会化等方向发展. 相似文献
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Although smart service systems have received increasing attention in information systems research, their affordances and constraints processes are less studied. In this study, we draw on interpretive case study methodology and technology affordances and constraints theory to investigate a smart service system use for seaport security in Ghana. With insights from the case of Ghana, we introduce an affordance constraints process as a framework to complement the existing affordance actualisation process framework in information systems. Thus, this study contributes to affordance theory with a new constraints process. The study’s findings show that smart service systems for seaport security afford autonomous access control, real-time security monitoring, and autonomous data capturing for analytics and reporting. However, such affordances can be constrained by power and internet outages, limited storage capacity, and device breakdowns. From these findings, we discuss implications for theory, research, and practice as well as limitations and directions for future research. 相似文献
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Contemporary information technologies such as social media have invigorated the way knowledge is shared within organizations to the extent that we have to rethink and reassess our understanding of the role and influence of technology in organizational processes and knowledge sharing. This paper uses the strategy as practice lens guided by the interpretivist philosophy to understand the influence of informal social media practices on knowledge sharing and work processes within an organization. The paper uses empirical evidence from the case study of a telecom organization in Tanzania to gain theoretical insight into informal social media practices and knowledge sharing. This research contributes to the Information Systems (IS) literature by asserting that organizational processes are achieved by mundane knowledge sharing mediated by informal social media use within the organization. Also, the study contributes to IS literature by highlighting how emerging informal practices are essential to daily processes within organizations. 相似文献
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Information management is the management of organizational processes, technologies, and people which collectively create, acquire, integrate, organize, process, store, disseminate, access, and dispose of the information. Information management is a vast, multi-disciplinary domain that syndicates various subdomains and perfectly intermingles with other domains. This study aims to provide a comprehensive overview of the information management domain from 1970 to 2019. Drawing upon the methodology from statistical text analysis research, this study summarizes the evolution of knowledge in this domain by examining the publication trends as per authors, institutions, countries, etc. Further, this study proposes a probabilistic generative model based on structural topic modeling to understand and extract the latent themes from the research articles related to information management. Furthermore, this study graphically visualizes the variations in the topic prevalences over the period of 1970 to 2019. The results highlight that the most common themes are data management, knowledge management, environmental management, project management, service management, and mobile and web management. The findings also identify themes such as knowledge management, environmental management, project management, and social communication as academic hotspots for future research. 相似文献