共查询到20条相似文献，搜索用时 203 毫秒
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数字图书馆个性化信息推荐系统研究 总被引：25，自引：2，他引：25
In order to provide individual information service in digital library, it's necessary to develop a personal-ized recommender system. Based on information retrieval, information filtering and coUaborative filtering technologies, this article gives some examples of the recommender system and analyzes their key technologies. 相似文献
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构筑信息服务保障体系思实录 总被引：2，自引：0，他引：2
Combining theory with practice and proceeding from operability, this paper puts forward 7 principles of con-structing the information service guarantee system, that is, engineering, capability, mutual service, service advantages,Web-besed information, overall coordination and sustained perfection. Meanwhile, the paper poirts out that, in the con-stmcfion and operation of the information service guarantee system, the interrelationship of key elements is more important than the constitution of key elements, and the construction of the system is more important than the application of technology. 相似文献
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Based on a summary of the present patent statistical information on Internet, this article puts forward an idea of developing Chinese patent statistical information on Internet,that is, developing a Chinese patent statistics system. It also discusses the function of this system and the way to realize and use this system. 相似文献
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IA应用研究--我国政府网站考察与评价 总被引：20，自引：0，他引：20
Issuing government information is a major task of the government Website. So it‘‘s important that the government Website is organized in accordance with the users‘‘ need and habit. In this article, the theory of Information Architecture (IA) is used to examine and evaluate some government Websites in an attempt to investigate some elements of government Websites such as the navigation system, information retrieval method and ways of information organizing and labeling. 相似文献
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我国信息服务业的发展策略研究 总被引：7，自引：0，他引：7
With a brief introduction to the characteristics of information service industry, this article analyzes the gap between the information service industry in China and abroad, and predicts the challenges and chances brought by China's acceding to WTO to the information service industry in China. Suggestions about the develolanent of the information service industry in China are also given. 相似文献
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从社会信息学角度看信息能力的评价标准 总被引：2，自引：0，他引：2
From the viewpoint d social informatics, this article discusses the evaluation criteria of information litera-cy in 3 aspects. Social informatics is the theoretical basis on which the evaluation criteria of information literacy can be for-mulated. The development of social informatics widens the connotation of the evaluation criteria of information literacy.And the evaluation criteria d information literacy have a solid sociological foundation. 相似文献
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数字信息长期存取策略研究 总被引：4，自引：0，他引：4
With an analysis of the characteristics of digital information,this article introduces several strategies for the long-term preservation of digital information. It's pointed out that the establishment of a file system of digital information is the best choice. Besides,the migration technology and the reproductive preservation technology can also be used in the light of specific conditions. 相似文献
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针对个性化信息服务能力评价中的不确定性问题,基于证据理论建立了个性化信息服务能力评价指标体系和个性化信息服务能力评价模型,并给出了具体算法,通过实证分析计算,不仅验证了该方法能较好地解决评价过程中所遇到的不确定性问题,也证明了该方法的有效性和可行性。Abstract： In view of the uncertainty problems in personalized information service capability evaluation,this article develops a personalized information service capability evaluation indicator system and a personalized information service capability evaluation model based on theory of evidence. The article gives the concrete algorithm. The empirical analysis and calculation show that this method can not only resolve the uncertainty problems in the evaluation process,but also testify the effectiveness and feasibility of the method. 相似文献
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大众传播信息合理使用原则分析 总被引：1，自引：0，他引：1
The principle of the rational use of the copyright of mass communication is an importamt legal system to protect the right of the social public and individuals to use information. However, this system is facing severe challenges both in technology and in benefit. This paper attempts to analyzes the problems in the principle of rational use, such as the principle of judgement, abuse restriction and the principle of rational use under the network communication conditions. 相似文献
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A scheme for designing a voice Website-based intelligent WWW information retrieval system is presented.It provides convenient and rapid information retrieval service for more users.Combining the advantages of full-text retrieval and intelligent retrieval,it can improve the response speed,recall ratio and pertinency ratio.Meanwhile,by using ASR,TIS and natural language processing,it can enlarge the scale of Internet users. 相似文献
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著作权问题是全文数据库建设中不可回避的问题,本文研究了学位论文全文数据库、特色馆藏文献全文数据库制作和服务中所涉及的著作权问题,以及在特色数据库建设中采用网络搜集全文信息所面临的著作权问题,并就此三类问题提出了一些避免侵权的建议,以达到既遵守著作权法规又使全文数据库顺利进行建设、服务。 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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全文检索系统为用户提供了一个便捷、高效地通向文献信息内容的接口。本文通过开源搜索引擎Xunsearch技术的应用,以张学良文献库为例,实现了特色文献库全文检索系统的构建。其中重点介绍系统构建思路、系统设计目标以及关键技术的实现过程,最后以检索示例阐述系统实现的功能和效果。 相似文献
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中美研究机构网站免费全文信息比较研究 总被引：1，自引：0，他引：1
研究机构网站的免费全文信息是专业性和可靠性强的重要信息源。本文运用了大量实例进行论证。首先探讨了中国和美国的研究机构网站提供免费全文信息的原因,主要是自我宣传的需要和信息交流的需要。然后比较研究了中国科学院和美国科学院网站免费全文信息的异同点。最后比较研究了中国和美国的大学研究机构网站免费全文信息的异同点。 相似文献
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通过建设双层PDF全文数据库、创建索引和全文检索等实现过程来阐述相关技术的研究和运用。以建设全文数据库为基础,研究结构化信息与非结构化数据的合并管理,对目录数据和全文数据的同步索引,基于Lucene技术,实现档案管理系统的一站式智能化档案全文检索,提升档案查全率。 相似文献
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两种全文信息检索系统的比较研究 总被引：4，自引：0，他引：4
The paper compares two kinds of full text retrieval systems,that is, For-search system and TRS system,and analyzes their differences and similarities in structure and function. 相似文献
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Problems of zero-output and over-output in a full text retrieval system are discussed. Methods of how to solve these problems are described. 相似文献
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本文探讨了在基于关键词索引的中文全文检索系统中实现各种截词检索的方法，建立了关键词索引的Hash索引，这种方法即能节省内存又提高检索效率。 相似文献