信息预测服务中对预测方法选用的影响因素分析

本文通过实际的信息预测服务探讨了在信息预测中,影响预测方法选用的几种因素及其比较与分析,同时也阐述了各预测方法间的相互结合使用可使预测精确度达到较佳的结果。     

ANN预测方法应用研究

本文研究讨论了神经网络在情报处理与信息咨询中的应用及其用于预测问题的范围和限制,利用ＢＰ算法提出了时间序列和信息预测方法,在此基础上对大豆单产进行了预测,并对比证实了本方法比统计回归模型有较强的预测能力。     

情报信息预测服务之关键所在

本文阐述了情报信息预测的关键主要取决于准确的情报信息资源采集、加工、预测方法选择的合理程度以及情报信息人员预测所具备的能力和认识水平,从而使预测达到最佳的预期效果。     

Creating a consumer health outreach program for Western New York senior citizens: continuing a library school project

The Internet has made accessing information a simple task. Each day millions of Americans log on to the Web in search of information on a variety of subjects. One of the most sought after type of information is medical information. Individuals are taking a more proactive role in their personal health care and the health care of their friends and families. Attempting to locate and evaluate quality health care information can pose a variety of problems for the consumer. Academic libraries have an opportunity to play a crucial role in facilitating the consumer's access to quality, reliable health information by developing and implementing consumer health outreach programs designed to address search problems and information interpretation difficulties. The benefits for both the community and the library are numerous when a consumer health information outreach program is successfully employed. This article will chronicle the creation of a Consumer Health Outreach program, entitled "WNY Consumer Health," intended for senior citizens in Western New York. This program was designed to satisfy the requirements of a graduate special project for the completion of the authors' MLS degree.     

Creating a Consumer Health Outreach Program for Western New York Senior Citizens: Continuing a Library School Project

ABSTRACT

The Internet has made accessing information a simple task. Each day millions of Americans log on to the Web in search of information on a variety of subjects. One of the most sought after type of information is medical information. Individuals are taking a more proactive role in their personal health care and the health care of their friends and families. Attempting to locate and evaluate quality health care information can pose a variety of problems for the consumer. Academic libraries have an opportunity to play a crucial role in facilitating the consumer's access to quality, reliable health information by developing and implementing consumer health outreach programs designed to address search problems and information interpretation difficulties. The benefits for both the community and the library are numerous when a consumer health information outreach program is successfully employed. This article will chronicle the creation of a Consumer Health Outreach program, entitled “WNY Consumer Health,” intended for senior citizens in Western New York. This program was designed to satisfy the requirements of a graduate special project for the completion of the authors' MLS degree.     

Information needs and information sources of individuals living with spinal cord injury

AIMS AND OBJECTIVES: Access to health information is important for the well-being of people living in the community after spinal cord injury (SCI). In order to design appropriate information interventions, it is critical first to understand the information sources typically used. The goal of this study therefore is to identify the information-seeking practices of this group. SAMPLE AND METHODS: A sample of 207 individuals living in the community following traumatic spinal cord injury were surveyed regarding their ongoing information needs and practices for seeking information. RESULTS: The results reveal that respondents have unmet information needs, despite the fact that they typically access information through a variety of channels. SCI specialists are the most commonly used source, although they are viewed as relatively inaccessible. By contrast, the Internet (used by a relatively high proportion of respondents) is viewed as comparatively accessible, although there are some concerns about the quality of information found there. CONCLUSIONS: These survey results point to the need for an information source that is accessible and delivers high quality information. Although respondents use a variety of information sources, none meets this ideal profile. Information professionals should consider this gap in the design of information interventions.     

国内电子商务网站推荐系统信息服务质量比较研究——以淘宝、京东、亚马逊为例

[目的/意义]推荐系统已经成为电子商务网站的重要组成部分之一,为用户提供多种形式的信息推荐服务。国内以淘宝、京东和亚马逊为代表的电子商务网站的推荐系统采用不同的技术架构和多种热点推荐技术,并且越来越重视信息服务的质量。对推荐系统服务质量进行比较研究,能够进一步推动电子商务推荐系统的发展。[方法/过程]首先,从准确性、时效性、新颖性三个技术指标对比以上推荐系统的技术架构对于推荐服务质量的影响;其次,以用户体验作为信息服务质量评价的基础,对182名受访者进行热点技术的认可度调查,研究热点技术对推荐服务质量的影响;最后,对功能模块的用户体验情况进行调查和比较分析。[结果/结论]在这些研究、调查和分析的基础上,给出电子商务推荐系统使用的技术架构和热点技术,以及改进功能模块设计的对策,以进一步提升推荐系统的信息服务质量。     

竞争战略差异度的定量研究

本文认为可以把竞争战略差异度作为竞争情报分析工具之一。战略差异度在预测产业发展和演进、资本市场的投资赢利回报、企业战略转移的难易性等方面具有特殊的意义。     

An Application of Double Exponential Smoothing to Interlibrary Loan Forecasting

ABSTRACT

The difficulties of forecasting interlibrary loan and document delivery acquisition times are briefly discussed Exponential smoothing techniques are explained and their application to the forecasting of interlibrary loan and document delivery acquisition times are presented The illustration of these principles is via two BASIC programs, suitable for practical use in the library or information center.     

Information Systems: Problems of Image Registration and Reproduction

Due to the rapid development of visualization tools and technologies, the image information plays in the life of society a more and more large role in the course of time. There are widespread different image search and display systems which develop and could be integrated in various information systems. Long ago, many sections had been separated from the fundamental sphere of image information processing as independent directions with specific scientific objectives, such as computer graphics, computer vision, digital photography and others. The tendency to separation of new directions intended for different problems solving persists still, what is confirmed by the enormous annual number of publications. A wide variety of software products can meet the needs practically of any specific problem. But in present variety of image information processing it is possible to separate some general tendencies and some main central problems, which solving determines the image quality and the information systems operation evaluated by ultimate consumer.       

在线健康社区中信息可信性的影响因素研究

[目的/意义] 针对日益棘手的健康信息可信性问题,研究影响在线健康社区信息可信性的中心路径因素和外围路径因素,以利于学界和业界为在线健康社区的管理者和用户在采取多种措施提高信息的可信性方面提供新的思路和理论指导。[方法/过程] 基于精细加工可能性模型建立在线健康信息可信性的影响因素模型,并应用多元回归分析方法对模型进行检验。[结果/结论] 数据分析结果表明:论据质量、信息完整性、表达质量、一致性和来源可信性对信息可信性均有显著影响;自我效能正向调节中心路径变量对信息可信性的作用,负向调节外围路径变量对信息可信性的作用。     

外刊代理商评估方法探究

鉴于现有的对外刊代理商评估方法的不足,本文提出了新的评估方法,在新的评估方法中我们充分考虑了代理商的服务能力,代理商代理的期刊品种数和涉及到的出版社情况,出版社供货能力和服务质量等因素.     

河北省信息产业宏观分析及“十五”期间发展对策

本文用“指数法”测度河北省社会信息化水平 ,用“波拉特法”分析信息产业的发展规模和结构 ,用“勃朗指数平滑法”进行前瞻性预测。文中提出的分析模型和建议 ,对河北省信息产业发展具有重要参考意义和实用价值     

基于专利的技术预测评价指标体系及其实证研究

指出专利已经成为技术发展最重要的信息源,同时也为技术预测提供技术条件。在当前研究的基础上,从技术发展趋势、成熟度和演化方向3个方面,以专利指标为基础构建技术预测模型及评价指标体系,借助德温特世界专利创新索引数据库（Derwent Innovation Index,简称DII）的专利数据,针对固体氧化物燃料电池（SOFC）技术开展技术预测研究,以验证模型的可行性。结果证明,本文所构建的预测模型和评价指标体系具有较高程度的可行性和有效性。未来各国将继续致力于SOFC技术中固体电解质和密封材料的改进。     

Cultural Diversity in Brazil: A Guide to Reference Sources

ABSTRACT

Brazil is a unique and vibrant country. Researching the diverse cultures of Brazil, although a fascinating pursuit for many individuals, is made difficult by the vast amount of information available for this topic, published in many different languages. In an effort to bring together materials from various sources, assess their quality, and provide a listing of high quality titles, this bibliography presents a compilation of relevant materials from a wide variety of resources.     

Strategizing for Public Policy: The Information Literacy State Proclamation Project

This article describes a project designed to raise the awareness of policymakers about the importance of information literacy to achieve societal goals. Issues benefit from the governmental support, prioritization, mandates, and funding that can result when there is policy behind them. Studies indicate that many people lack the ability to draw on quality sources of information for a variety of purposes. Attention by policymakers would accelerate the inclusion of information literacy in settings such as education, workforce training, citizenship preparation, and lifelong learning. One way to raise awareness of policymakers is by recommending a proclamation to government executives.     

An introduction to minority health resources on the World Wide Web

Health care professionals and consumers often need information about, or targeted to, non-White or non-English speaking populations. Minority health resources sponsored by a variety of organizations are increasingly being made available on the World Wide Web. This information is easily accessible to providers, patients, and families, and community service agencies. The heterogeneity of sponsors, ranging from federal agencies to consumer advocacy and support groups- and their agendas-results in differences of quality, depth of content, and suitability for different information seekers. Taking a conservative approach, this article presents a collection of starting points whose roots are in established agencies, institutions, and organizations already familiar to most health care information professionals.     

Improving information-seeking behavior among business majors

The current generation of college students has used the Internet to access information since the early 1990s. No assessment of information use, quality, variety, and reliability of information generally occurs at both the student and faculty level. In this paper, we use a package of teaching methods targeted towards improving information-seeking behavior among graduate and undergraduate business majors. The effectiveness of the teaching package is assessed through an evaluation of student term papers and quality of resources used. We find that the package of teaching methods implemented does result in significant improvement in information-seeking behavior, especially among undergraduate business majors.