大学生网络信息可信度感知影响因素的实证研究

借助于＂媒介可信度理论＂与＂媒介系统依赖理论＂,采用问卷调查方法,我们探讨了大学生群体对于网络信息的可信度评价。研究发现,大学生群体在网络上不同类型的信息之间,其可信度评价存在显著差异;大学生群体对网络的信任程度与其对于网络的使用或者依赖程度呈显著正相关;大学生群体对网络的知觉易用性与网络的知觉有用性呈显著正相关。     

广州网上地方信息资源建设研究

本文对广州网上地方信息资源建设状况进行调查分析，概述了广州网上地方信息资源的类型与特点，分析了其利用效果，并对广州地方信息资源的建设相关问题提出一些看法。     

An empirical study of gene synonym query expansion in biomedical information retrieval

Due to the heavy use of gene synonyms in biomedical text, people have tried many query expansion techniques using synonyms in order to improve performance in biomedical information retrieval. However, mixed results have been reported. The main challenge is that it is not trivial to assign appropriate weights to the added gene synonyms in the expanded query; under-weighting of synonyms would not bring much benefit, while overweighting some unreliable synonyms can hurt performance significantly. So far, there has been no systematic evaluation of various synonym query expansion strategies for biomedical text. In this work, we propose two different strategies to extend a standard language modeling approach for gene synonym query expansion and conduct a systematic evaluation of these methods on all the available TREC biomedical text collections for ad hoc document retrieval. Our experiment results show that synonym expansion can significantly improve the retrieval accuracy. However, different query types require different synonym expansion methods, and appropriate weighting of gene names and synonym terms is critical for improving performance.

高校图书馆供求失衡中的制度性因素分析

合理的制度安排可以改变激励机制、降低交易费用、提高资源配置效率,进而增加有效供给,促进供求平衡.然而,制度创新滞后于技术创新、宏观制度与微观制度不协调、正式制度与非正式制度不相匹配、制度激励与制度约束不均衡严重制约着高校图书馆供给效率的提高,必须采取高校图书馆产权明晰化、制度创新市场化、创新程序民主化、图书馆文化建设长效化等措施提高高校图书馆制度的供给效率,促进高校图书馆的供求平衡.     

网络时代科学信息传播与利用的模式浅析

简述和分析了网络时代科学信息传播的三种模式，并指出读者如何选择适合自己的模式来更好地获取科学信息。     

网络信息资源组织中传统分类法的应用

论文分析了传统分类法在网络化环境下应用的现状、优势、适应性，并对如何改进现有的分类法以适应网络信息资源的组织和整合，提高网络信息资源的利用率提出了一些建议。     

国外网络健康信息用户研究进展及启示

从研究内容和研究方法两方面探讨国外网络用户健康信息需求和行为领域的主要进展和热点问题,以期为我国更好地开展网络健康信息用户研究提供发展思路。     

网络信息资源整合的研究现状

网络信息资源呈指数增长,但因内容组织无序,良莠混杂,给用户造成了负担。网络环境下信息资源的整合已成为图书情报界急需解决的问题。根据目前网络信息资源整合研究的现状,对整合的必要性及其所要遵循的原则进行了分析,并对OPAC书目信息资源整合的成功事例进行了介绍,提出了信息资源整合工作中应注意的问题和系统的评价。     

网络营销活动中竞争情报需求分析

网络营销是信息经济时代企业重要的营销手段,本文从情报的角度剖析网络营销,分析了网络营销活动的构成要素,详细论述了网络营销活动中的竞争情报需求,并总结了获取竞争情报的途径,供网络营销企业借鉴。     

User acceptance of mobile e-government services: An empirical study

The traditional focus of e-government services research has been on non-mobile services but now with the incorporation of mobile services more people are able to access these Mobile e-government services (m-government services). In addition, such services are critical for improving user-to-government communication effectiveness and maintaining relationships. The purpose of this study is to identify the factors that determine user acceptance of these services. Based primarily on the theory of planned behavior and supplemented by the mobile communication perspective, a sample of 331 users of m-government services in Taiwan was tested. The findings show that perceived usefulness, perceived ease of use, trust, interactivity, external influence, interpersonal influence, self efficacy, and facilitating conditions are critical factors. This study has given us a better understanding of critical mobile communication factors in improving user acceptance of m-government services. Implications and recommendations for research and practice are also presented and discussed.     

网络环境下医学科研人员信息利用水平的研究

文章分析了网络环境下医学科研人员信息利用水平的现状及其影响信息利用水平的因素,为了提高医学科研人员的信息利用水平,本文提出了在信息利用意识、信息利用技能、信息利用培训和信息服务等方面应该采取的措施和方法.     

A study of the information seeking behaviour of hospital pharmacists: empirical evidence from Greece

Background: Hospital pharmacists need access to high‐quality information in order to constantly update their knowledge and improve their skills. In their modern role, they are expected to address three types of challenges: scientific, organizational and administrative, thus having an increased need for adequate information and library services. Objectives: This study investigates the information‐seeking behaviour of public hospital pharmacists providing evidence from Greece that could be used to encourage the development of effective information hospital services and study the links between the information seeking behaviour of hospital pharmacists and their modern scientific and professional role. Method: An empirical research was conducted between January and February 2010 with the development and distribution of a structured questionnaire. The questionnaire was filled in and returned by 88 public hospital pharmacists from a total of 286 working in all Greek public hospitals, providing a response rate of 31%. Results: The hospital pharmacists in Greece are in search of scientific information and, more particularly, pharmaceutical information (e.g., drug indications, storage, dosage and prices). The Internet and the National Organization of Medicines are their main information sources, while the lack of time and organized information are the main obstacles they have to face when seeking information. Conclusions: The modern professional role of hospital pharmacists as invaluable contributors to efficient and safer healthcare services may be further supported through the development of specialized libraries and information services within Greek public hospitals.     

网络环境下教育学院图书馆信息服务工作的思考

通过对教育学院图书馆服务对象和馆藏资源特点的分析．提出网络环境下教育学院图书馆开展信息服务的几点措施。     

信息网络化时代科技期刊基于作者友好的编辑作为

随着互联网技术的迅速发展与普及,传统的纸质媒体面临数字化和网络化的深刻变革。面对数字化出版环境以及投稿作者年轻化的特点,科技期刊编辑部应因地制宜,利用互联网技术和各种平台,实现信息网络化环境下的作者友好:提高刊物的可检索性及潜在作者获取信息的便捷性和准确性;通过建立自主型期刊网站提供在线稿件处理、教育服务等功能;借力优先数字出版,提升学术研究的传播力以及基于Web 2.0时代与作者交流方式互动化等编辑作为体现作者友好,适应数字化出版的需要,为作者提供更加优质的服务,获得竞争优势,从而更好地生存和发展。     

河南省本科高校图书馆网络书目情报服务现状调查研究

文章通过对河南省本科高校图书馆网络环境下书目情报服务现状的调查,分析了河南省高校图书馆网络书目情报服务存在的问题,提出网络书目情报服务的发展策略.     

Topics in dynamic research communities: An exploratory study for the field of information retrieval

Research topics and research communities are not disconnected from each other: communities and topics are interwoven and co-evolving. Yet, scientometric evaluations of topics and communities have been conducted independently and synchronically, with researchers often relying on homogeneous unit of analysis, such as authors, journals, institutions, or topics. Therefore, new methods are warranted that examine the dynamic relationship between topics and communities. This paper examines how research topics are mixed and matched in evolving research communities by using a hybrid approach which integrates both topic identification and community detection techniques. Using a data set on information retrieval (IR) publications, two layers of enriched information are constructed and contrasted: one is the communities detected through the topology of coauthorship network and the other is the topics of the communities detected through the topic model. We find evidence to support the assumption that IR communities and topics are interwoven and co-evolving, and topics can be used to understand the dynamics of community structures. We recommend the use of the hybrid approach to study the dynamic interactions of topics and communities.     

On the time evolution of received citations,in different scientific fields: An empirical study

The time evolution of mean received citations is calculated on a sample of journals from two ISI subject categories (“Chemistry, multidisciplinary”, ISI Science Edition, and “Management”, ISI Social Science edition) with the use of an original methodology. Mean received citations are plotted against the time gap in years existing between publication of the cited article and received citations. For most Chemistry journals in the sample the maximum number of average received citations occurs two years after publication, and then a decrease is experimented. Some peculiar cases present a different trend. Management journals, conversely, do not present in most cases a peak of citations: average received citations instead grow from year of publication to the age of 10 years (maximum time gap studied). A subsample of journals show similar results for longer time series (up to 23 years). Medians of average received citations per year partly show a similar behavior. Results suggest that citedness follows very different trends in very different fields, and partly suggest why differences in Journal Impact Factor exist between different categories. At the end of the work conclusions are drawn, together with suggestions for future research.     

An empirical investigation of mobile government adoption in rural China: A case study in Zhejiang province

This study is among the first attempts to empirically investigate the adoption of mobile government by rural populations in developing economies. Based on 409 validated questionnaires collected from families living in rural China, the study examines the interdependences among rural inhabitants' demographic attributes, their access to and perceptions of mobile government, and quantifies how their intention to use mobile government is influenced by technology attributes, social factors and trust beliefs. The results indicate that young males, who live far from a village center or market, and have some knowledge of recent government policies, tend to have a more positive perception of mobile government, and therefore become potential adopters of the service. Perceived ease of use, near-term usefulness, long-term usefulness, integrity, benevolence, image and social influence have significant and positive influences on the intention to use mobile government. Specifically, perceived ease of use, long-term usefulness and social influence have a direct influence on intention to use, while perceived near-term usefulness, integrity, benevolence and image have an indirect influence.     

网络环境下高校图书馆的信息服务——江苏省高校图书馆信息服务现状的调查分析

文章通过对江苏省13所高校图书馆实地的和网上的调查，分析总结了高校图书馆近几年来在信息服务体系，方式，深度等方面发生的变化和取得的成绩。     

网络环境下高校图书馆信息服务模式

简要阐述网络环境对高校图书馆信息服务的影响，指出图书馆的服务模式要适应网络环境就必须调整馆藏结构，建设网络化的信息资源；积极拓展图书馆传统服务，创新现代化情报咨询服务，还要充分发挥图书馆的教育职能。