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1.
Eldredge JD 《Medical reference services quarterly》2004,23(4):35-47
This case study describes strategies developed for medical students to conduct Specific (as opposed to Sensitive) searches in PubMed so they can quickly locate several relevant references to articles on the population and social aspects of medicine. The Specific search strategy protocol for population and social aspects of medicine involves use of the MeSH Database, certain features of the Detailed Display in the MeSH Database, and applying Limits. By teaching the Specific form of search strategy, busy users can learn a handful of basic techniques that should yield a useful proportion of references, thereby ensuring these users' frequent success. 相似文献
2.
《The Reference Librarian》2013,54(60):61-85
Summary This study examines the search tactics used by Web users to start their searches and deal with search problems such as too many postings and no relevant postings. Four search topics were developed to allow for comparison of search tactics used in four types of searches. The tactics analyzed include search statements, number of search statements, starting points, and tactics to solve the two search problems mentioned above. Search statements were searched in Alta Vista to determine their success and their nature was analyzed. With regard to the tactics used to address search problems, t-tests and chi-square tests found no difference between searches for texts and searches for graphic information, and between known-item searches and subject searches. Some of Web users' search tactics were similar to those for online searching or online catalog searches, but several tactics were unique to Web searching. 相似文献
3.
The author investigated the information requirements and search habits of graduate students at Tatung University, a private university in Taipei City, Taiwan. Data were collected by means of questionnaires (416) and follow-up interviews with graduate students from nine departments. Results show that 90% of the subjects conducted information searches using outside sources in addition to the university library. More than half of the respondents said that they depend on the university library and fellow students when conducting information searches. Finally, the amount of required effort and speed of access were more important than cost when choosing an Information source. 相似文献
4.
[目的/意义] 搜索引擎是用户访问网络资源的重要入口,识别用户搜索策略有助于发现用户搜索的认知规律,让搜索引擎更好地理解用户搜索。[方法/过程] 采用Microsoft顺序分析与聚类分析算法对用户搜索日志中的搜索时间进行分析,识别用户利用搜索引擎时普遍采用的搜索策略,并概括不同类型搜索策略的特征。[结果/结论] 用户在搜索中存在“快速消费”策略、“试探”策略、“探索”策略和“终止与确认”策略,不同策略在搜索时间、浏览次数、用户认知过程等方面表现出明显的差异。 相似文献
5.
Lucy Holman 《The Journal of Academic Librarianship》2011,37(1):19-27
Today's students exhibit generational differences in the way they search for information. Observations of first-year students revealed a proclivity for simple keyword or phrases searches with frequent misspellings and incorrect logic. Although no students had strong mental models of search mechanisms, those with stronger models did construct more complex searches. 相似文献
6.
《Journal of Web Librarianship》2013,7(2-3):263-285
ABSTRACT In this study, students' use of a new educational Web portal was evaluated with particular emphasis on searching and browsing strategies. The effects and implications of a federated search system are also discussed. Fifty-four students, ranging from 5th to 12th grade, were given five tasks to complete using the SchoolRooms interface. The tasks required students to use both the search box and the categorical browse feature on the Web portal. Data collected were analyzed to determine time on task, rate of success and the subjects' awareness of success, and the type of search method chosen to complete the tasks. In general, students preferred the search-box strategy to the categorical-browse strategy, but exposure to both strategies resulted in increased use of the browse strategy. Success rates varied widely by task. Students had a difficult time distinguishing between various media and format types returned by the federated search. Results suggest that while students prefer a search-box strategy, it is by no means the only way they search for information. Students experienced difficulty in trying to de-aggregate the results of a federated search engine. These findings have implications for information literacy and library instruction. Forthcoming analysis of these data will address the factors related to search success. 相似文献
7.
《Journal of Web Librarianship》2013,7(2):80-95
Creating a learnable, effective, and user-friendly library Web site hinges on providing easy access to search. Designing a search interface for academic libraries can be particularly challenging given the complexity and range of searchable library collections, such as bibliographic databases, electronic journals, and article search silos. Library Web designers must decide whether to present users with a single search interface—one that searches across content silos by default—or to offer an interface that exposes the various silos available. Designers must also contend with the user's entire search experience and determine how search should appear on the library home page as well as in global navigation systems. In the spring of 2010, the North Carolina State University Libraries sought to answer search design questions for an upcoming Web site design effort. The Libraries evaluated two different search interfaces to determine whether a tabbed search approach with options to pre-select silos is an effective design for end users. Findings show that a tabbed search interface is an effective design device for presenting multiple silos. This study outlines the methods the North Carolina State University Libraries used to conduct usability testing as well as observations, findings, and recommendations about effective design of search on academic library Web sites. 相似文献
8.
搜索引擎的个性化检索研究 总被引：1，自引：0，他引：1
〔摘要〕 在对大量检索实例进行分析研究的基础上，将当前搜索引擎的个性化检索分
为三种类型，即基于使用偏好的个性化检索、基于检索历史的个性化检索和基于检索结
果的个性化检索。通过对各类型个性化检索的比较，指出在三类个性化检索模式中，基
于检索结果的个性化检索，可实现的个性化的效果最好。 相似文献
9.
Leah Boulos Rachel Ogilvie Jill A. Hayden 《Journal of the Medical Library Association》2021,109(1):23
Objective:This study retroactively investigated the search used in a 2019 review by Hayden et al., one of the first systematic reviews of prognostic factors that was published in the Cochrane Library. The review was designed to address recognized weaknesses in reviews of prognosis by using multiple supplementary search methods in addition to traditional electronic database searching.Methods:The authors used four approaches to comprehensively assess aspects of systematic review literature searching for prognostic factor studies: (1) comparison of search recall of broad versus focused electronic search strategies, (2) linking of search methods of origin for eligible studies, (3) analysis of impact of supplementary search methods on meta-analysis conclusions, and (4) analysis of prognosis filter performance.Results:The review''s focused electronic search strategy resulted in a 91% reduction in recall, compared to a broader version. Had the team relied on the focused search strategy without using supplementary search methods, they would have missed 23 of 58 eligible studies that were indexed in MEDLINE; additionally, the number of included studies in 2 of the review''s primary outcome meta-analyses would have changed. Using a broader strategy without supplementary searches would still have missed 5 studies. The prognosis filter used in the review demonstrated the highest sensitivity of any of the filters tested.Conclusions:Our study results support recommendations for supplementary search methods made by prominent systematic review methodologists. Leaving out any supplemental search methods would have resulted in missed studies, and these omissions would not have been prevented by using a broader search strategy or any of the other prognosis filters tested.Open in a separate windowLeah Boulos 相似文献
10.
This observational study examined the strategies that music students used to locate scores and media items in an academic library's online public access catalog (OPAC). During a usability test, investigators tracked students' search strategies and behaviors, and measured their success in identifying appropriate items. Students experienced briefer, less complicated, and more successful queries for media items than for music scores (the latter of which they struggled to find and properly identify). Class standing, library catalog experience, and prior library instruction had no significant effect on positive outcomes. Searches for music scores were highly sensitive to variations in query wording, and students frequently struggled to revise their searches. 相似文献
11.
Lettie Y. Conrad 《期刊图书馆员》2017,72(1-4):190-193
ABSTRACTLettie Conrad reported on the findings of original research on academic user experience with serendipitous discovery in scholarly research. This research has been released as the fourth installment of a series about discoverability as part of the SAGE White Papers. This research was designed to examine how students and faculty seek content beyond the search box. The researchers being studied take advantage of unplanned or unexpected content discoveries such as selecting a link in an e-mail alert, following a trail of citations within an important paper, or making use of recommendations. The study found that researchers decide to follow recommendations, either machine generated or from an acquaintance, based on a combination of perception of relevance to the field of study, access to the recommended article, and trust in the provider. SAGE has used these findings to enhance its products to better showcase content to users and then help them to more readily make sense of it. 相似文献
12.
《The Journal of Academic Librarianship》2020,46(1):102096
Academic libraries offer a variety of tools for students to find information, including discovery systems and traditional library databases. This study contributes to the growing body of knowledge on student information-seeking behaviors by comparing how upper-level students majoring in Social and Behavioral Sciences use these two categories of search tools. Student search behavior and the use of search features, facets in particular, are quantified for each tool. The authors explore with statistical analyses whether these practices aid or hinder students in their search for high quality information. Qualitative data from student interviews is selectively employed to aid in explaining the results. Key findings include the differential use of search features in the discovery system versus the traditional database, and the relationships between the use of certain facets and the quality of sources chosen by students. Implications for instruction, search interface configuration, and default settings are discussed. 相似文献
13.
《The Journal of Academic Librarianship》2020,46(6):102234
Building off an earlier study, which examined whether or not it was beneficial to teach Boolean logic to introductory students, the present study examines the efficacy of Boolean OR searching in more advanced search strategies, for example, capstone projects and graduate theses and dissertations. Results show that both simple and advanced Boolean searches yield relevant results. Based on relevance, there is no compelling evidence that either search is superior. To capture all the literature on a topic, however, it is important that upper-level students know the relevant databases for their discipline and perform multiple searches. Results can help inform whether teaching Boolean search skills to upper-division students in disciplinary contexts is time well spent. 相似文献
14.
OBJECTIVE: To evaluate the adequacy of the MEDLINE instruction routinely given to all entering medical students at the University of Miami School of Medicine and the ability of students to search effectively for and retrieve evidence-based information for clinical decision making by the end of their third-year. METHODOLOGY: The authors developed and implemented a strategy for evaluating the search strategies and articles selected by third-year students, who participated in the Objective Structured Clinical Examination (OSCE) in June 1996, 1997, and 1998, and reviewed the literature on evidence-based medicine and evaluation of medical student searches. RESULTS: A mean of 5% of the students' search strategies and a mean of 26% of articles selected were ranked "excellent" or "good"; a mean of 26% of search strategies were ranked "fair" and a mean of 69% were ranked "poor"; and a mean of 22% of articles selected were ranked "fair" and a mean of 52% were ranked "poor" based on the strategy developed to evaluate student searches. CONCLUSIONS: Evaluating medical student searches for evidence-based information is an effective way of evaluating students' searching proficiency, and, in turn, the adequacy of the instruction they receive. Based on the results of the OSCE test, the school of medicine expanded the library's educational role and the library implemented major changes in the training program. Information on evidence-based medicine is now incorporated into the MEDLINE instruction. Library faculty evaluate the required searches performed by students for evidence-based information during their first and second years; 30% of students are identified for follow-up, individualized instruction based on the evaluation; and a new case-based curriculum has been proposed with a fourteen-week problem-based learning (PBL) block. These developments are timely in light of the evidence-based competencies recently published by the Association of American Medical Colleges. 相似文献
15.
Jennifer A. Lyon Rolando Garcia-Milian Hannah F. Norton Michele R. Tennant 《Medical reference services quarterly》2013,32(3):241-252
Expert-mediated literature searching, a keystone service in biomedical librarianship, would benefit significantly from regular methodical review. This article describes the novel use of Research Electronic Data Capture (REDCap) software to create a database of literature searches conducted at a large academic health sciences library. An archive of paper search requests was entered into REDCap, and librarians now prospectively enter records for current searches. Having search data readily available allows librarians to reuse search strategies and track their workload. In aggregate, this data can help guide practice and determine priorities by identifying users’ needs, tracking librarian effort, and focusing librarians’ continuing education. 相似文献
16.
In 2010, Thomson Reuters released WestlawNext powered by WestSearch, a novel and proprietary algorithm. WestlawNext represents a new approach to legal research platform design. This article empirically examines the differences in search results using Westlaw Classic and WestlawNext by testing law students and librarians in both systems. Results demonstrate that researchers complete everyday searches faster and more accurately using WestlawNext. However, WestSearch's unique features and Thomson Reuters' failure to explain the function behind the WestlawNext main search bar and the WestSearch algorithm has limited researchers' ability to understand and effectively use WestlawNext. This lack of understanding has significant implications for instruction. 相似文献
17.
18.
Doreen R. Bradley Gurpreet Kaur Rana Patricia W. Martin Robert E. Schumacher 《Journal of the Medical Library Association》2002,90(2):194-201
Purpose: The study assesses potential for improving residents'' evidence-based medicine searching skills in MEDLINE through real-time librarian instruction.Subjects: Ten residents on a rotation in a neonatal intensive care unit participated.Methodology: Residents were randomized into an instruction and a non-instruction group. Residents generated questions from rounds and searched MEDLINE for answers. Data were collected through observation, search strategy analysis, and surveys. Librarians observed searches and collected data on questions, searching skills, search problems, and the test group''s instruction topics. Participants performed standardized searches before, after, and six-months after intervention and were scored using a search strategy analysis tool (1 representing highest score and 5 representing lowest score). Residents completed pre- and post-intervention surveys to measure opinions about MEDLINE and search satisfaction.Results: Post-intervention, the test group formulated better questions, used limits more effectively, and reported greater confidence in using MEDLINE. The control group expressed less satisfaction with retrieval and demonstrated more errors when limiting. The test and control groups had the following average search scores respectively: 3.0 and 3.5 (pre-intervention), 3.3 and 3.4 (post-intervention), and 2.0 and 3.8 (six-month post-intervention).Conclusion: Data suggest that measurable learning outcomes were achieved. Residents receiving instruction improved and retained searching skills six-months after intervention. 相似文献
19.
《The Reference Librarian》2013,54(32):57-69
This article describes and analyzes the search strategy step in the document reference process. It uses documents and general reference models to point out the unique aspects of the documents search strategy as well as those which are similar to the general reference search strategy. The documents search process is also analyzed from three different cognitive points of view. Suggestions for improving documents reference service through a better understanding of the documents search strategy are included. 相似文献
20.
R W Wender E L Fruehauf M S Vent G D Wilson 《Bulletin of the Medical Library Association》1977,65(3):330-337
Continuing medical education is an area of current concern to health sciences librarians. A comprehensive study of literature searches requested by physicians and by fourth-year medical students serving their five-week preceptorship with a rural physician was conducted: (1) to determine if there is any pattern to the requests received so that areas of study for continuing medical education can be ascertained; and (2) to determine whether there is any appreciable difference in nature and complexity between those searches requested by clinicians and those requested by medical student preceptees. Literature search requests were examined in terms of individual MeSH subjects, subcategories, and categories for each subject covered in every search. This analysis has demonstrated that assessing the clinical problems of practicing physicians may be one method of determining needed continuing medical education topics. 相似文献