基于点击流数据的用户近期兴趣视图生成方法

利用点击流数据综合分析用户点击行为，同时考虑用户对所点击页面的浏览行为和具体内容，分别引入操作行为权重和特征词条权重，提出一种基于点击流数据的用户近期兴趣视图生成方法。     

论网络环境下电子文献与纸质文献的共存关系

本文通过对电子文献与纸质文献的比较分析,论述了在网络环境下,电子文献将与纸质文献长期共存、优势互补、共同发展。     

Chinese Studies Librarianship in North America

Although American libraries had begun collecting Chinese language materials in the 19th century, notably the United States Library of Congress in 1869, Yale in 1878, Harvard in 1879, and Berkeley in 1896, East Asian studies librarianship in North America, including China studies librarianship, was not fully developed until the 1960s. There was no formal organization that represented the interest of Chinese studies librarians because there were few of them and most of them were China scholars rather than trained librarians. More than 100 years later, the number of Chinese studies librarians in North America has increased considerably, primarily in response to the demand in the field of China studies and more recently to the needs of immigrant population and the general public who has an interest in China.This paper traces the history and growth of Chinese studies librarianship in North America, documents the development of the professional organization that represents Chinese studies librarians, and exami.     

网上参考咨询服务活动与知识库建设

论述了图书馆网上参考咨询的特点及其网上参考咨询知识库建设的重要性,阐释了网上参考咨询知识库建设和网上参考咨询服务活动之间的关系。结合目前通行的网上知识导航等各种服务模式,与建立网上知识库的实践需求等进行了比较分析。     

A study of clinical questions posed by hospital clinicians.

OBJECTIVE: This article presents the results of complementary research studies on the behaviors of hospital clinicians in asking clinical questions and the relationship between asking of questions, outcome of information searches, and success in problem solving. METHODS: Triangulation in research methods--a combination of mailed questionnaires, interviews, and a randomized controlled study--was employed to provide complementary views of the research problems under study. RESULTS: The survey and interviews found that clinical problems (concerned mainly with therapy and equipment or technology) were expressed as statements rather than questions (average number of concepts = 1.7), that only slightly more than half (higher for doctors) of problems could be solved, and that the majority of clinical questions were not well formed. An educational workshop however improved clinicians' formulation of questions, but the use of structured prompting was found to improve building of hypotheses in the doctors' group without training. The workshop also improved satisfaction with the obtained information and success in problem solving. Nonetheless, for both the experimental and control groups, more structured and complete questions or statements did not mean higher success rates in problem solving or higher satisfaction with obtained information. CONCLUSION: The triangulation methods have gathered complementary evidence to reject the hypothesis that building well-structured clinical questions would mean higher satisfaction with obtained information and higher success in problem solving.     

基于用户信息需求的元搜索引擎的构建

针对当前网络搜索引擎未能较多地关注用户需求、查全率与查准率不高、彼此间不兼容的缺陷,提出建立基于用户需求的元搜索引擎,并分析其基本原理,给出其基本结构,讨论其运行机制和关键技术。指出基于用户需求的元搜索引擎可使网络信息资源在一定程度上结构化,实现网络信息资源的自组织,提高网络信息检索的查全率和查准率.     

论学科建设中信息导航的内容框架和组织形式

从学科建设的认识角度出发，信息导航应按学科功能建设要求制定导航内容框架，要兼顾不同用户的检索和思维习惯，提供不同的检索入口。信息的组织主要汇集在两个方面：基于对主题概念及其概念集合的描述和基于对概念集合特征的描述。学科导航内容体系的设计和信息的组织，应该围绕着学科建设主题开展和深化。     

科学发展观与科学受众观

用科学发展观指导广播电视的发展和各项改革，应当是我国广播电视面临的带有全局性的重要工作。为了总结广电业发展改革的经验，反思尚存的问题，中国广播电视协会举办了以“科学发展观与广电业改革”为主题的征文活动，历时半年，日前已经结束。本刊编辑部从大量征文里选刊了一些文章，分两期发表，以飨读者。[编者按]     

王莽巡狩封禅制度新证

王莽的复古改制多从儒家经典取材,有一些我们可以从传世经典文献中直接找到其来源,有些则语焉不详。于是出土文物所提供的证据就显得格外珍贵了。本文所讨论的王莽计划了两次却始终未得施行的巡狩封禅制度,就是根据近年在西安的汉长安城遗址出土的“封禅玉牒”所提供的文字材料,将出土文物与传世文献进行对证,从而发现一些新的线索,补充了《汉书·王莽传》记载的不足,分析了一些后代因为文献记载不足所产生的误解。     

电视新闻:平静却不平淡

对于中国的电视新闻界而言，2004年平静却不平淡。