基于向量空间模型的主动推送系统设计与优化

主动信息服务是信息检索的发展方向之一，传统向量空间模型用于设计主动推送系统具有一定的优点，但仍不能克服检索结果不相关的问题。本文提出了一系列优化措施，设计了一个基于向量空间模型的主动推送系统原型，更好的满足网上信息检索效率的提高。     

Google Answers及其对图书馆工作的启示

Google Answers是Google推出的一项新服务。它将传统图书馆参考咨询服务技术有机的运用到网络中去并得到了用户的广泛好评。论文通过介绍Google Answers的相关工作流程并将Google Answers与传统参考咨询进行对比，以期得到对当前图书馆事业发展的一些启示。     

自习室的科学化管理--高校图书馆新的服务价值取向

论文讨论了高校图书馆自习室在学校人才培养工作中的重要性,阐明了对图书馆自习室施行科学管理的必要性及方法.     

A brief history of non-state-owned book businesses in China

Conclusion The private book business in mainland China has developed for 25 years since 1980. With complete opening of the book distribution market, the Chinese government tried to address and to solve the structural issues in China’s publishing and directly related book distribution industries. We are optimistic that all sectors of the Chinese book publishing and distribution will have a brighter future.     

More Than Just a Student Voice: Facilitating Student Leadership Development Through the Library Student Liaison Program

This article explores how the library-student liaison program at Eastern Washington University (EWU) Libraries has evolved into an opportunity for students to develop leadership skills. Originally designed to foster better communication between the EWU Libraries and students enrolled at the university, we recognized that the process of achieving established goals for the program provided a vehicle for students' leadership-skill development. To facilitate the leadership process, librarians employed the Social Change Model. Designed specifically for college students, this model engages the student to develop individual capacities to strengthen group activities that foster positive changes in the community and society.     

智慧图书馆建设误区与建设策略

[目的/意义] 探究构建智慧图书馆的主要策略,回答什么是智慧图书馆,智慧图书馆是什么样式,建设智慧图书馆的策略,解决智慧图书馆建设中一些模糊不清的理论与实践问题,以拓宽视野。[方法/过程] 采用文献调研与实地调研相结合,梳理和分析图书馆发展历程,指出智慧图书馆建设中出现的误区,提出建设策略。[结果/结论] 提出构建智慧图书馆五大策略,即整体的目标分析与设计;从数据到大数据;多元数据的融合;协调合作与分步落地;创新环境营造。     

社交媒体用户转移行为影响因素模型及实证研究

[目的/意义]探究社交媒体用户转移行为的影响因素,拓宽社交媒体用户行为的研究范围,以期为相关理论研究提供参考,并对社交媒体运营商提高服务质量、增加用户粘性提供借鉴。[方法/过程]基于期望确认理论、沉浸理论以及信息系统成功模型构建理论模型,重点关注社交媒体系统质量、信息质量、服务质量、沉浸体验以及用户社交媒体使用满意度是否会以及会在多大程度上影响用户转移行为。通过问卷调查法获得数据,利用SPSS和AMOS分析软件进行数据的分析和假设的验证。[结果/结论]通过分析可知社交媒体系统质量、信息质量、服务质量以及沉浸体验对用户满意度具有正向影响,而用户满意度负向影响转移行为。     

基于信息使用环境理论的引用行为研究:参考文献分析的视角

目前,学术界多开展引用动机和引文功能的相关研究,但对于引用偏好等引用行为却关注较少。基于Taylor的信息使用环境理论,本研究采用参考文献分析方法,全面揭示了施引者引用行为的特征和影响因素。研究将信息使用环境理论中的前三类要素分别通过学者特征、组织环境及论题进行定义,采用参考文献分析法提取第四类要素;随机抽取论文样本,针对上述四类特征进行编码并通过统计分析探讨影响施引者引用行为的因素。研究发现:学者的年龄、性别、教育水平、学术年龄、职业角色、职称、所属机构的类型和层次以及所从事的研究主题和类型,都能对质量、语种、数量、信息资源类型、论文新旧的引用偏好产生显著影响。研究表明:信息使用环境理论和参考文献分析法在引用行为研究中具有适用性。表4。参考文献47。     

Attitudes toward Dual Language Immersion Programs in China

With the development of economy and the English learning reform in China,the role of English has increased than ever before.Dual language immersion(DLI)programs,as a new way to offer both languages and content instructions,will gradually take place of traditional English learning and become a new tendency in China.The attitudes of related groups toward the DLI programs are very important to its further development.This paper will first give a brief introduction to the current situation in China,and then analyze the attitude toward DLI programs,includingones of students,teachers and administrators,to find out problems existing in current DLI programs.     

Precision measurement of the Newtonian gravitational constant

The Newtonian gravitational constant G, which is one of the most important fundamental physical constants in nature, plays a significant role in the fields of theoretical physics, geophysics, astrophysics and astronomy. Although G was the first physical constant to be introduced in the history of science, it is considered to be one of the most difficult to measure accurately so far. Over the past two decades, eleven precision measurements of the gravitational constant have been performed, and the latest recommended value for G published by the Committee on Data for Science and Technology (CODATA) is (6.674 08 ± 0.000 31) × 10⁻¹¹ m³ kg⁻¹ s⁻² with a relative uncertainty of 47 parts per million. This uncertainty is the smallest compared with previous CODATA recommended values of G; however, it remains a relatively large uncertainty among other fundamental physical constants. In this paper we briefly review the history of the G measurement, and introduce eleven values of G adopted in CODATA 2014 after 2000 and our latest two values published in 2018 using two independent methods.