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1.
《Library & information science research》1998,20(2):115-131
Previous information retrieval research has neglected examination of older adults' search behavior. The present study examined the online search performance and associated errors of 54 older adult users of a representative online library catalog system. Participants' error data were examined in the framework of Borgman's three layers of knowledge needed to perform online library catalog searching: (1) conceptual knowledge, (2) semantic knowledge, and (3) technical skills in executing the query. The results of older adults were consistent with findings of previous online library catalog studies with younger adults. Older adults experienced serious problems at all three knowledge layers but experienced their most severe difficulties with conceptual knowledge of how to search the online library catalog system (e.g., formulating queries, understanding and using keyword and Boolean searching, and understanding the contents of databases). The significance of these findings for older adults' use of online library catalogs will be discussed. 相似文献
2.
João Palotti Allan Hanbury Henning Müller Charles E. KahnJr. 《Information Retrieval》2016,19(1-2):189-224
The internet is an important source of medical knowledge for everyone, from laypeople to medical professionals. We investigate how these two extremes, in terms of user groups, have distinct needs and exhibit significantly different search behaviour. We make use of query logs in order to study various aspects of these two kinds of users. The logs from America Online, Health on the Net, Turning Research Into Practice and American Roentgen Ray Society (ARRS) GoldMiner were divided into three sets: (1) laypeople, (2) medical professionals (such as physicians or nurses) searching for health content and (3) users not seeking health advice. Several analyses are made focusing on discovering how users search and what they are most interested in. One possible outcome of our analysis is a classifier to infer user expertise, which was built. We show the results and analyse the feature set used to infer expertise. We conclude that medical experts are more persistent, interacting more with the search engine. Also, our study reveals that, conversely to what is stated in much of the literature, the main focus of users, both laypeople and professionals, is on disease rather than symptoms. The results of this article, especially through the classifier built, could be used to detect specific user groups and then adapt search results to the user group. 相似文献
3.
The Alfred Taubman Medical Library at the University of Michigan has offered instruction in online literature searching to third-year pharmacy students as a component of the course "Drug Information and Scientific Literature Evaluation" since 1983. In the spring of 1989, a follow-up study was conducted to assess the impact of instruction on four classes of graduates. Of a pool of 151 graduates, 90 (60%) responded to a mailed questionnaire on their use of information and computerized literature searching. The respondents were divided into four subgroups: end-user searchers, users of intermediaries, end users who used intermediaries, and those who did not use computerized literature search systems. Seventy-two percent of the respondents used some type of computerized literature searching, and 42% performed their own searches. The four subgroups differed in general computer use, familiarity with MEDLINE search terminology, information use, reasons for using or not using literature searching, and characteristics of searches (i.e., type, time frame, amount, and frequency). Training in end-user search systems appears to have had an impact on the continued use of computerized literature searching several years after the formal educational program. 相似文献
4.
老年人网络健康信息检索行为实验研究 总被引：7，自引：2，他引：5
采用用户检索实验的方法,从检索工具选择、检索式构造、检索结果浏览和选择4个阶段分析老年人网络健康信息检索的行为特点、行为模式以及网络健康信息对老年人日常信息获取的影响。研究结果发现：老年人在检索过程中表现出明显的依赖性和定势性。首页/重选网页模式、跟随链接模式、重构检索式模式是老年人的高频检索行为模式。健康状况、网络熟悉程度和网络健康信息的可信度是老年人日常利用网络获取健康信息时考虑的主要因素。 相似文献
5.
Louis Leung 《亚洲交流杂志》2013,23(1):96-119
This study examined how chronic loneliness is associated with gratifications‐sought and its effect on Internet use. Results from a telephone survey of 864 Internet users of 16‐years of age or older found that surveillance, affection, and social interaction were strongest instrumental use of the Internet followed by ritualized use such as entertainment, escape, and arousal. The proposition that the chronically lonely derive fewer gratifications from Internet use than do the situationally lonely and the nonlonely people was not supported. Moreover, no consistent patterns of ritualized or instrumental use of the Internet were found when comparing the chronically lonely and the nonlonely groups. However, the hypothesis that chronically lonely persons will report less active use of the Internet such as using e‐mail, surfing the WWW, reading online news, and playing online games than do the situationally lonely and the nonlonely persons received much support. Finally, regression results show that instrumental gratifications were more predictive of Internet activities for the nonlonely group than the lonely group. Implications of loneliness on Internet use in Chinese culture are discussed. 相似文献
6.
This study investigates the information seeking behavior of general Korean Web users. The data from transaction logs of selected dates from August 2006 to August 2007 were used to examine characteristics of Web queries and to analyze click logs that consist of a collection of documents that users clicked and viewed for each query. Changes in search topics are explored for NAVER users from 2003/2004 to 2006/2007. Patterns involving spelling errors and queries in foreign languages are also investigated. Search behaviors of Korean Web users are compared to those of the United States and other countries. The results show that entertainment is the topranked category, followed by shopping, education, games, and computer/Internet. Search topics changed from computer/Internet to entertainment and shopping from 2003/2004 to 2006/2007 in Korea. The ratios of both spelling errors and queries in foreign languages are low. This study reveals differences for search topics among different regions of the world. The results suggest that the analysis of click logs allows for the reduction of unknown or unidentifiable queries by providing actual data on user behaviors and their probable underlying information needs. The implications for system designers and Web content providers are discussed. 相似文献
7.
OBJECTIVES: The study examines how Loansome Doc services are implemented and used by libraries in the Southeast Region and describe end users' experiences with and attitudes toward Loansome Doc. METHODS: 251 active DOCLINE libraries and 867 Loansome Doc users were surveyed. RESULTS: Roughly one half of the libraries offered Loansome Doc services. Of those that did not, most indicated no plans to offer it in the future. The majority had a small number of end users and experienced minimal increases in interlibrary loan activity. Problems were relatively rare. Satisfaction with Loansome Doc was high among all types of libraries. End users were usually physicians or other health care professionals who requested articles for research and patient care. Most learned about Loansome Doc through PubMed or Internet Grateful Med. End users appeared to be largely self-taught or received informal instruction in Loansome Doc. Loansome Doc filled document requests in a timely manner, and end users reported being satisfied with the service. CONCLUSIONS: Greater promotion of what Loansome Doc is and how it can benefit libraries can increase the number of participating libraries. While satisfaction of Loansome Doc end users is high, satisfaction could be increased with more help on the PubMed screen, more library training, and faster delivery methods. 相似文献
8.
《Library & information science research》2001,23(2):167-185
This article reviews studies, conducted between 1995 and 2000, on Web search behavior. These studies reported on children as well as on adults. Most of the studies on children described their interaction with the Web. Research on adult searchers focused on describing search patterns, and many studies investigated effects of selected factors on search behavior, including information organization and presentation, type of search task, Web experience, cognitive abilities, and affective states. What distinguishes the research on adult searchers is the use of multiple data-gathering methods. The research on Web search behavior reflects researchers' commitment to examine users in their information environment and exhibits rigor in design and data analysis. However, many studies lack external validity. Implications of this body of research are discussed. 相似文献
9.
Alison C. Bethel Morwenna Rogers Rebecca Abbott 《Journal of the Medical Library Association》2021,109(1):97
Background:Systematic reviews are comprehensive, robust, inclusive, transparent, and reproducible when bringing together the evidence to answer a research question. Various guidelines provide recommendations on the expertise required to conduct a systematic review, where and how to search for literature, and what should be reported in the published review. However, the finer details of the search results are not typically reported to allow the search methods or search efficiency to be evaluated.Case Presentation:This case study presents a search summary table, containing the details of which databases were searched, which supplementary search methods were used, and where the included articles were found. It was developed and published alongside a recent systematic review. This simple format can be used in future systematic reviews to improve search results reporting.Conclusions:Publishing a search summary table in all systematic reviews would add to the growing evidence base about information retrieval, which would help in determining which databases to search for which type of review (in terms of either topic or scope), what supplementary search methods are most effective, what type of literature is being included, and where it is found. It would also provide evidence for future searching and search methods research. 相似文献
10.
《The Reference Librarian》2013,54(41-42):375-385
The Internet has provided OCLC with another delivery mechanism to support its chartered public purpose of ex- access to the world's information and reducing rising information costs. This network of networks has helped OCLC and its member libraries reach electronically a new audience of end users with new products and new technologies designed especially for them. OCLC offers three reference products via the Internet: The First - Search Catalog, the EPIC service, and The Online Journal of Current Clinical Trials. All can be accessed using the Internet from an enduser's home, office, dorm room, laboratory, hotel room-or any other location with a modem nearby-as well as from a library. FirstSearch is a new online information service designed for library patrons, with an end-user interface that allows patrons to move through the online search process in just a few simple steps, without special training or online searching experience. The EPIC service is an online information service with a command interface designed for the advanced searcher. Both of these services offer access to a number of databases, including the OCLC Online Union Catalog, an electronic card catalog of 28 million records used by more than 16,000 libraries. 相似文献
11.
Ardion BeldadAuthor Vitae Thea van der GeestAuthor Vitae Michaël SteehouderAuthor Vitae 《Government Information Quarterly》2012,29(1):41-49
This article discusses the results of a large-scale Internet survey (with 1156 respondents) that investigated the cues and factors that could positively influence Dutch Internet users' trust in government organizations in terms of their usage and processing of citizens' personal data. Confidence in online privacy statements, as indicated by the results of this study, significantly influences trust in government organizations among Dutch Internet users with and without previous e-government experience. Among those with e-government experience, the quality of their online government transaction experience and a positive government organizational reputation can also increase their trust in government organizations, specifically in terms of how they process and use citizens' personal data. 相似文献
12.
Juan Sebastian Rios Donghee Yvette Wohn Yu-Hao Lee 《Communication Research Reports》2019,36(2):93-102
This article investigates whether knowledge of Internet usage among older adults is related to social capital as well as their expectations to obtain social support online. A U.S. national survey of adults aged 60 and older (n = 1,101) found that Internet literacy is significantly associated with their expected Internet support and bridging and bonding social capital even after controlling for age, Internet use, and other factors. 相似文献
13.
《The Reference Librarian》2013,54(34):15-26
The increasing availability of computerized information sources and networking capabilities, along with the proliferation of microcomputers in faculty homes and offices, has led to increased demands for direct access to databases. The librarian's role as online search intermediary appears to be changing from performing searches directly to aiding users in doing their own searching. The Research Libraries Information Network (RLIN), one of the major cataloging utilities, offers a wealth of bibliographic information in both its online union catalog, and its many specialized files. The University at Albany Libraries participated in a pilot project involving faculty end-user access to RLIN. This paper reports on the Libraries' experience with the pilot project and the continuing end-user access program for faculty. Despite some reservations about the relative user-friendliness of the RLIN search system, the author enthusiastcally endorses the use of RLIN as an end-user database. 相似文献
14.
Background: While the Internet is a popular source of health information, health seekers’ inadequate skills to locate and discern quality information pose a potential threat to their healthcare decision‐making. Objectives: We aimed to examine health information search and appraisal behaviours among young, heavy users of the Internet. Methods: In study 1, we observed and interviewed 11 college students about their search strategies and evaluation of websites. In study 2, three health experts evaluated two websites selected as the best information sources in study 1. Results: Familiarity with health websites and confidence in search strategies were major factors affecting search and evaluation behaviours. Website quality was mostly judged by aesthetics and peripheral cues of source credibility and message credibility. In contrast to users’ favourable website evaluation, the experts judged the websites to be inappropriate and untrustworthy. Conclusion: Our results highlight a critical need to provide young health seekers with resources and training that are specifically geared toward health information search and appraisal. The role of health seekers’ knowledge and involvement with the health issue in search effort and success warrants future research. 相似文献
15.
Coverage-based search result diversification 总被引：1，自引：0，他引：1
Traditional retrieval models may provide users with less satisfactory search experience because documents are scored independently and the top ranked documents often contain excessively redundant information. Intuitively, it is more desirable to diversify search results so that the top-ranked documents can cover different query subtopics, i.e., different pieces of relevant information. In this paper, we study the problem of search result diversification in an optimization framework whose objective is to maximize a coverage-based diversity function. We first define the diversity score of a set of search results through measuring the coverage of query subtopics in the result set, and then discuss how to use them to derive diversification methods. The key challenge here is how to define an appropriate coverage function given a query and a set of search results. To address this challenge, we propose and systematically study three different strategies to define coverage functions. They are based on summations, loss functions and evaluation measures respectively. Each of these coverage functions leads to a result diversification method. We show that the proposed coverage based diversification methods not only cover several state-of-the-art methods but also allows us to derive new ones. We compare these methods both analytically and empirically. Experiment results on two standard TREC collections show that all the methods are effective for diversification and the new methods can outperform existing ones. 相似文献
16.
Xiaoying Dong 《International Information and Library Review》2013,45(2-4):163-187
This study examines the use of Internet resources and the evaluation of their usefulness from the perspectives of Chinese students and academics. The questionnaires were distributed at Peking University, ISTIC, and at the Information Institute of Science and Technology of Zhe Jiang Province, where 706 valid samples were collected. The data was analyzed according to: The background of the Internet users; the standard of Internet resources; Internet information-seeking behaviour; users’ evaluations of Internet resources and their perceived expectations about future Internet services. The study found that users with higher educational degrees tend to spend more time on the Internet and find Internet resources more useful than less-educated users. Although Internet search engines are the preferred information retrieval tool, other traditional or informal retrieval methods are also used. Many respondents agree that the Internet is helpful for narrowing the knowledge gap between developed and developing countries. Besides its richness and high speed, accuracy and authority are the most important factors when users judge the quality of the Internet; but, more specialized information filtering and navigation services are required. Further studies should focus on the information-seeking behaviour of different target groups, and with specific comparisons of Chinese academic users from economically developed areas, versus users from China's comparatively undeveloped Northwest provinces. 相似文献
17.
Jassim M. Jirjees Mohammed A. Al-Sanabani 《International Information and Library Review》2013,45(2):69-85
The Internet has caught the public in its expanding web. It is beginning to reshape other media and is now making its way into countries all over the world including developing countries. Yemen, as a developing country, introduced Internet services in September 1996. The present study attempts to evaluate Internet services in Yemen from inception up to the end of 1998. The study also hopes to find, among other things, how well and how widely the Internet is used in Yemen and to what extent Yemen can benefit from it, and how Yemen participates in the information highway. A questionnaire was used as a tool for collecting data. The homepages hosted at the Tele-Yemen (ISP) Server were scanned and certain criteria were used for their evaluation. The study was able to pinpoint the problems faced by Yemeni users of the Internet, the constraints confronting its diffusion in Yemen and the profits gained by subscribers. The study came up with several suggestions and recommendations that the two authors hope will provide a basis for assessing the prospects for the future of the Internet in Yemen. 相似文献
18.
Xiaoying Dong 《International Information and Library Review》2003,35(2-4):163
This study examines the use of Internet resources and the evaluation of their usefulness from the perspectives of Chinese students and academics. The questionnaires were distributed at Peking University, ISTIC, and at the Information Institute of Science and Technology of Zhe Jiang Province, where 706 valid samples were collected. The data was analyzed according to: The background of the Internet users; the standard of Internet resources; Internet information-seeking behaviour; users’ evaluations of Internet resources and their perceived expectations about future Internet services. The study found that users with higher educational degrees tend to spend more time on the Internet and find Internet resources more useful than less-educated users. Although Internet search engines are the preferred information retrieval tool, other traditional or informal retrieval methods are also used. Many respondents agree that the Internet is helpful for narrowing the knowledge gap between developed and developing countries. Besides its richness and high speed, accuracy and authority are the most important factors when users judge the quality of the Internet; but, more specialized information filtering and navigation services are required. Further studies should focus on the information-seeking behaviour of different target groups, and with specific comparisons of Chinese academic users from economically developed areas, versus users from China's comparatively undeveloped Northwest provinces. 相似文献
19.
《International Information and Library Review》1999,31(2):69-85
The Internet has caught the public in its expanding web. It is beginning to reshape other media and is now making its way into countries all over the world including developing countries. Yemen, as a developing country, introduced Internet services in September 1996. The present study attempts to evaluate Internet services in Yemen from inception up to the end of 1998. The study also hopes to find, among other things, how well and how widely the Internet is used in Yemen and to what extent Yemen can benefit from it, and how Yemen participates in the information highway. A questionnaire was used as a tool for collecting data. The homepages hosted at the Tele-Yemen (ISP) Server were scanned and certain criteria were used for their evaluation. The study was able to pinpoint the problems faced by Yemeni users of the Internet, the constraints confronting its diffusion in Yemen and the profits gained by subscribers. The study came up with several suggestions and recommendations that the two authors hope will provide a basis for assessing the prospects for the future of the Internet in Yemen. 相似文献
20.
Deborah H. Charbonneau 《Public Library Quarterly》2014,33(2):121-130
This article reports on the results of a study that examined public library website adherence to senior-friendly website guidelines. A total of 104 public library websites (N = 104) were analyzed. Compliance with Internet design accessibility principles recommended for older adult Internet users was analyzed, and the findings suggest that current public library website practices may be problematic. As a result, public library websites offering resources and services may present potential accessibility challenges to older adults. Recommendations relevant to public libraries for enhancing library websites and online content are presented. 相似文献