共查询到20条相似文献，搜索用时 315 毫秒
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The activities of the government can be described as reporting the feelings of the people (receiving infor-mation), making policies (processing information) and issuing government orders (sending out information). This is a typical course of information processing. If we can successively trail and scientifically measure this information course, we will be able to appraise the performance of the government in a scientific way. The development of government informatiza-tion and e-government is providing such a kind of appraisement for the government. The paper mainly discusses the possi-bilities of informetric analysis of the e-government. Methods for such analysis are also described. 相似文献
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万维网上的全文检索技术及其发展 总被引：6，自引：2，他引：4
The conception and characteristics of full text retrieval are expounded. The basic structure and key technologies of a full text retrieval system on WWW are put forward. According to the development direction of intelligent information retrieval, the author discusses three approaches of combining artificial intelligence with information retrieval. 相似文献
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信息伦理学研究中若干问题的思考 总被引：13，自引：0，他引：13
The further development of information ethics needs to solve some important ethic problems involved with disciplinary construction. These problems include the cause of the formation of information ethics; the research method,attribution and features of information ethics; the connotation and systematic structure of information ethics; the enlightenment we gain from the studies of the guiding principles of information ethics in foreign countries. The scientific analysis and exposition of these problems are helpful to the prosperity and perfection of information ethics and to the construction of social information ethics. 相似文献
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叙词表在网络环境下的新应用及对我国的启示 总被引：9，自引：1，他引：9
The article first gives a review of the latest development in the application of the thesauri in the network environment, then points out the problems which need extra attention in the development of Internet thesauri. It also ana-lyzes how China is developing Internet theasuri, and points out that if we can solve the problems of the electronic thesauri,they will play a more important role in information organization and retrieval. 相似文献
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基于内容的智能网络多媒体信息过滤检索 总被引：7，自引：2，他引：7
The paper discusses the construction of a content-based intelligent system that performs multimedia information filtering and retrieving on the Internet. The system disassembles the multimedia information into different media objects and describes them with vectors for content-based retrieval. In the user study module, the system uses the BP neural network to clarify the user interests for intelligent filtering and retrieving. 相似文献
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《中国科学院院刊(英文版)》2015,(2):68-69
<正>The Sino-Swiss Laboratory for Data Intensive Neuroscience was unveiled on March 26,2015 by the Institute of Automation,Chinese Academy of Sciences(CASIA)and the Swiss Federal Institute of Technology in Lausanne(EPFL)in Beijing.Brain-like intelligence is considered to be a revolutionary scientific discipline and major driving force behind the development of future intelligence science and information technology.Taking brain-like intelligence as 相似文献
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学术期刊文献信息的传播与编辑 总被引：5，自引：0，他引：5
The characteristics and functions of academic journals and the new demand for documentary information in academic journals in the information age are expounded. By introducing the characteristics of edition and dissemination of printed journals, secondary documents and academic journals (CD), the paper emphasizes the importance of large-scale integration and secondary edition of documentary information in journals for enhancing information dissemination and availability ratio of academic journals. 相似文献
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《中国科学院院刊(英文版)》2007,(2)
The National Basic Research Program (dubbed as the " 9 73 Program" is China's on-going national keystone basic research program, which was approved by the Chinese government in June 1997 and is organized and implemented by the Ministry of Science and Technology. The strategic objectives of the Program are to strengthen the original innovations and to address the important scientific issues concerning the national economic and social development at a deeper level and in a wider scope, so as to improve China's capabilities of independent innovations and to provide scientific support for the future development of the country. The followings are some of the" 9 73 projects" initiated in 2006 under the coordination of CAS scientists. 相似文献
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科技信息的网络动态监测和信息自动获取技术研究 总被引：1，自引：0，他引：1
文章综述了国内外基于Robot的Web信息检索(IR)、定题检索、智能信息检索及其代理以及相关的信息自动获取技术的有关理论、方法和技术,探讨了适合技术预测与评估的需要、用于科学领域专题信息采集的、网络科技信息智能获取的方法和策略。构建了网络科技信息动态监测和信息自动获取系统的总体框架,实现了一个基于Web的系统原型(简称BIT),并分析了该系统的特点。 相似文献
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自然语言在Pubmed检索系统中的应用 总被引：4，自引：0，他引：4
自然语言检索是情报检索的发展趋势。Pubmed检索系统通过自然语言自动转换及截词检索、词组的自动识别及特定符号的使用、限定检索范围、Preview/Index等功能，有效地克服了自然语言检索的局限，提高了检索效率。 相似文献
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Measuring effectiveness of information retrieval (IR) systems is essential for research and development and for monitoring search quality in dynamic environments. In this study, we employ new methods for automatic ranking of retrieval systems. In these methods, we merge the retrieval results of multiple systems using various data fusion algorithms, use the top-ranked documents in the merged result as the “(pseudo) relevant documents,” and employ these documents to evaluate and rank the systems. Experiments using Text REtrieval Conference (TREC) data provide statistically significant strong correlations with human-based assessments of the same systems. We hypothesize that the selection of systems that would return documents different from the majority could eliminate the ordinary systems from data fusion and provide better discrimination among the documents and systems. This could improve the effectiveness of automatic ranking. Based on this intuition, we introduce a new method for the selection of systems to be used for data fusion. For this purpose, we use the bias concept that measures the deviation of a system from the norm or majority and employ the systems with higher bias in the data fusion process. This approach provides even higher correlations with the human-based results. We demonstrate that our approach outperforms the previously proposed automatic ranking methods. 相似文献
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网络环境下情报检索模型理论发展及评价体系研究 总被引：3，自引：0，他引：3
相关性测量是信息检索的关键。人们提出了一系列信息检索模型以从理论与实践的角度给予解答。本文以发展的眼光探讨了各种信息检索模型的理论、特性和应用，试图从模型应用的角度建立一套用于网络环境下的信息检索模型比较和评估指标体系。 相似文献
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大数据的出现既为科学研究奠定了雄厚的信息资源保障,同时又为科研数据查找、分析和利用带来了巨大挑战,文章通过分析科技查新与科研创新的关系,查找目前科技查新所存在的问题,重点提出通过整合查新机构资源打造科研大数据、加强科技查新人才队伍的建设、规范科技查新管理和健全质量控制体系等一系列措施推动科技查新工作的科学发展,进一步推动科研创新。 相似文献
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用科技查新服务正确引导科研创新 总被引：2，自引：0，他引：2
本文阐述了科技查新的重要意义,结合查新手段的巨大变化和存在的问题,提出必须建立强大的信息网络,培养一支高素质的查新队伍,为科研创新提供信息服务,开展查新科学研究,变被动为主动,以科技查新正确引领科研创新。 相似文献
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面向学科的网络信息挖掘系统研究 总被引：2，自引：0，他引：2
面向学科的网络信息挖掘是信息检索领域内一个新兴而有实用价值的研究项目。本文分析了面向学科的网络信息挖掘的系统构架，提出了相应的解决方案，其目的是为了解决网络环境下面向学科的科研人员面临的信息过载和资源迷向的问题。 相似文献
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查新服务可以为科技成果的评审、鉴定、评奖、产业化等提供客观评价依据,必须作到公正、客观、准确,而文献资源的充足和全面是提高科技查新质量的基础,因此,科技成果查新信息源的建设与资源共享是一个亟待解决的课题。本文通过分析文献信息源在科技成果查新中的作用、类型、存在的问题,提出了相应的对策建议,并筒述了南京市科技信息研究所在科技成果查新信息源建设与共享中的实践和探索情况。 相似文献