一种基于系统聚类的图书馆读者细分模型

读者细分是图书馆管理中迫切需要解决的问题,"被动服务"的图书馆服务模式逐渐转向"读者驱动",所提供的个性化服务应该符合读者的实际需求,因此这种个性化服务对于目前单一的读者属性细分方式提出了更高的要求。本文采用系统聚类算法建立了图书馆读者细分模型,进而提出了四种不同的细分方式,并用图书馆流通数据对模型进行了测试,验证了该细分模型的实用性和有效性。     

微博客在高校图书馆个性化服务中的应用

微博客在图书馆个性化服务中的应用为高校图书馆的综合业务提升提供了新的动力。高校图书馆通过微博客,将读者纳入到图书馆服务的主体当中,使读者全方位参与到图书馆资源建设、参考咨询等服务当中,深化了以读者为中心的个性化服务理念,提高了数字图书馆个性化服务能力,使得"图书馆员无处不在"的观念深入人心。     

浅议图书馆个性化信息服务

个性化信息服务是读者中心论的体现。本文阐述个性化信息服务的基本模型,提出图书馆信息服务要切实贯彻"以人为本"的服务理念,深层次开发网络信息资源,实现资源共享,提高图书馆服务的针对性和有效性。     

基于小数据决策的读者兴趣发现与预测

【目的/意义】读者的阅读兴趣可分为短期兴趣和长期兴趣,具有不稳定性。读者兴趣发现模型作为图书馆 个性化服务推送的基础和核心,其准确性和时效性是图书馆个性化服务有效的关键。当前,采集读者的阅读行为 信息,从中挖掘隐性知识并获取读者的阅读兴趣,已成为目前图书馆个性化服务一个重要的研究方向。【方法/过 程】本文提出了一种基于小数据决策的读者兴趣发现与预测模型。【结果/结论】通过对读者小数据的测试和分析, 可增强图书馆对读者服务需求预测的精度,提升图书馆个性化服务推荐的效率,改善图书馆个性化服务的质量,满 足读者的个性化服务需求。     

关联规则在图书馆个性化服务中的应用

为适应图书馆新书推荐服务的需要,以安徽省图书馆为例,用数据挖掘中的关联分析技术对安徽省图书馆的借阅记录进行挖掘,提出读者推荐服务模型,利用挖掘出来的关联规则进行读者个性化推荐服务。     

关联规则在图书馆个性化服务中的应用

为适应图书馆新书推荐服务的需要,以安徽省图书馆为例,用数据挖掘中的关联分析技术对安徽省图书馆的借阅记录进行挖掘,提出读者推荐服务模型,利用挖掘出来的关联规则进行读者个性化推荐服务.     

浅谈高校图书馆个性化信息服务途径探索

从个性化推荐、个性化、个性化网络服务3个方面探索高校图书馆个性化信息服务工作新路径,丰富高校图书馆信息服务内涵,有助于其与时俱进,顺应社会发展需求,从而为读者提供更优质的个性化信息服务。     

论图书馆的人性化管理与服务

文章阐述了图书馆"以人为本"必须以服务过程的标准化和服务内容的个性化为主要途径,指出必须正确处理图书馆管理者、员工与读者的关系,做到读者和员工并重,充分发挥馆员的工作积极性和内在创造力,才能实现共同创造和谐、高效的图书馆的目标.     

关联规则在图书馆个性化服务中的应用

为适应图书馆新书推荐服务的需要，以安徽省图书馆为例，用数据挖掘中的关联分析技术对安徽省图书馆的借阅记录进行挖掘，提出读者推荐服务模型，利用挖掘出来的关联规则进行读者个性化推荐服务。     

浅析高校图书馆读者服务工作

对高校图书馆服务现状进行分析,从图书馆服务意识、软硬件设施建设、读者参与度、个性化服务、多元化服务等方面对高校图书馆读者服务工作进行了阐述和探讨。     

Students' Reactions to the Introduction of Videoconferencing for Classroom Instruction

This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors.     

Cooler temperatures inductive to locust outbreaks

Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007.     

Exploring Multiplexity: Social Network Structures in a Computer-Supported Distance Learning Class

A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction.     

The Role of Intermediating Institutions in the Diffusion of Electronic Data Interchange (EDI): How Industry Associations Intervened in Denmark, Finland, and Hong Kong

Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies.     

Low doses of a red wine ingredient figh diabetes in mice

Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said.     

How Electronic Publishers are Protecting Against Piracy: Doubts About Technical Systems of Protection

The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means.     

Rough Justice: A Statistical Assessment of ICANN's Uniform Dispute Resolution Policy

Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP.     

Prevalence of soft neurological signs in Chinese people

Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.     

Molecular motor assembly of a biomimetic system

Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction.     

Monoculture Rubber Plantations Have Negative Ef ects on Controlling Splash Erosion

<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence