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《Medical reference services quarterly》2013,32(3):21-29
Most medical school libraries are attempting to provide some form of training for the CD-ROM MEDLINE user, according to this survey conducted in 1989. User guides and vendor produced tutorials are helpful but are not usually a major aspect of the training. The training sessions vary considerably in length as well as number of attendees, with individualized training being the most widespread. Few facilities offer advanced classes. A core list of training topics has been identified. Evaluation of the training has been done in only a small percentage of the libraries. 相似文献
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《Medical reference services quarterly》2013,32(3):29-46
Through casual observations, formal consultations, and educational sessions, the authors have identified various indexing features of the National Library of Medicine's Medical Subject Headings (MeSH) that pose challenges to end users while attempting to obtain relevant retrieval when searching MEDUNE. These problematic features include the use of Explodes, Tree structures, subheadings, Text Word vs. subject heading searching, and central concept searching. End-user search software is becoming more sophisticated with an increasing number of choices offered for search strategy fomalation. Methods of instruction to orient the end user to these systems will also have to become more detailed. A review of the literature, that discusses end-user problems with using MEDLINE and MeSH, is included. 相似文献
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W Moll 《Bulletin of the Medical Library Association》1974,62(1):1-5
MEDLINE (MEDLARS-ON-LINE) is the new on-line, interactive bibliographic searching system which was recently developed by the National Library of Medicine. The system provides users with lists of bibliographical citations and other information from a three-year file of over 1,250 biomedical journals. A survey testing user reactions was conducted at the University of Virginia Medical Library. The results of the survey are based on replies by 246 users who requested one or more MEDLINE searches between September 1972 and March 1973. The findings indicate that over 93% believe that MEDLINE is a substantial improvement over the traditional methods of searching through the printed indexes. These respondents also stated that the results of MEDLINE searches had assisted them in their clinical or research work, or both. Asked whether they would continue to use MEDLINE after the imposition of user charges on July 1, 1973, about 75% said that they would. The remaining 25% expressed some reservations and doubts. The survey gives reason to believe that with the imposition of user charges the use of MEDLINE will decline. 相似文献
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Ekstrand NL 《Medical reference services quarterly》1991,10(1):1-15
The Radiology Information Service at the Bowman Gray School of Medicine of Wake Forest University performs a wide range of functions from physician continuing education to a photocopy service, including approximately 450 demand literature searches annually. The complexity of the field of radiology, the rapid advances in hardware and techniques, and the variety of interests on the part of radiologists and basic scientists requesting searches make online literature retrieval a challenge for even the expert radiology librarian. This paper presents up-to-date searching terminology, suggested search formulations, and bibliographic sources which have proved valuable in the functioning of the Radiology Information Service. 相似文献
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Indexing consistency in MEDLINE 总被引：3，自引：0，他引：3
The quality of indexing of periodicals in a bibliographic data base cannot be measured directly, as there is no one "correct" way to index an item. However, consistency can be used to measure the reliability of indexing. To measure consistency in MEDLINE, 760 twice-indexed articles from 42 periodical issues were identified in the data base, and their indexing compared. Consistency, expressed as a percentage, was measured using Hooper's equation. Overall, checktags had the highest consistency. Medical Subject Headings (MeSH) and subheadings were applied more consistently to central concepts than to peripheral points. When subheadings were added to a main heading, consistency was lowered. "Floating" subheadings were more consistent than were attached subheadings. Indexing consistency was not affected by journal indexing priority, language, or length of the article. Terms from MeSH Tree Structure categories A, B, and D appeared more often than expected in the high-consistency articles; whereas terms from categories E, F, H, and N appeared more often than expected in the low-consistency articles. MEDLINE, with its excellent controlled vocabulary, exemplary quality control, and highly trained indexers, probably represents the state of the art in manually indexed data bases. 相似文献
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具备条件的医学期刊可以考虑争取进入MEDLINE,争取进入MEDLINE的过程实际上是一个学习、提高的过程,也是转变办刊观念、使期刊逐步与国际接轨的过程。这个过程对提高期刊水平,缩短差距,会起到很大的促进作用。 相似文献
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R Weitzel 《Bulletin of the Medical Library Association》1976,64(1):32-35
Supplying MEDLINE services to a widely dispersed user population in the developing countries creates numerous problems not encountered by other MEDLINE centres. The inability to interact with the user complicates system promotion and makes search formulation sometimes a gamble. Nevertheless, an evaluation survey has shown high user satisfaction. Of great concern is the still inadequate solution of document delivery. Near-term objectives are the broadening of geographic coverage and the integration of search processing with supporting hard copy supply. 相似文献
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Google Scholar对MEDLINE数据库的检索性能测评 总被引：5，自引：0，他引：5
文章以Google Scholar检索MEDLINE数据的检索结果和PubMed的检索结果进行对比分析,以帮助用户正确认识使用Google Scholar. 相似文献
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Hsu PP 《Medical reference services quarterly》1991,10(1):49-64
The University of Florida Health Science Center Library (UF-HSCL) surveyed MEDLINE end-user activities of the faculty from the six colleges which the UF-HSCL serves. A questionnaire was developed and sent to all faculty members. The Basic SAS program was used to analyze the collected data. This survey was intended to identify the users, the reasons for faculty members not being end users, the purpose for searching MEDLINE, the information retrieval methods, the level of end-user satisfaction, and the librarian's role in information retrieval activities. Many findings from this survey were in agreement with those of the 1988 study by the National Library of Medicine. 相似文献
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One hundred sixty-five search requests processed through the SUNY Biomedical Communication Network were analyzed to determine how many of the citations thus retrieved would have been retrievable by MEDLINE. The results showed that MEDLINE would have been capable of retrieving 78.7% of the SUNY citations. Almost half of the 21.3% of the citations not retrievable by MEDLINE were from foreign-language journals. A subject analysis of the data showed that in most subject areas MEDLINE was able to provide a relatively small percentage of the journal titles generated by SUNY. These few titles, however, contained a large percentage of the SUNY citations involved in the study. 相似文献
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《Medical reference services quarterly》2013,32(2):25-40
The University of Oklahoma Health Sciences Center (OUHSC) Library conducted a two-year program, funded by the National Library of Medicine (NLM), to teach Oklahoma's nonurban health professionals to perform searches of NLM's MEDLINE files using microcomputers. The training program included lectures, online demonstrations, and hands-on practice time. The initial target audience of non-urban physicians was later broadened to include other health professionals. Data collected on the 334 seminar participants included professions and specialties, previous microcomputer usage, and the size of their hospitals. On-site evaluation indicated a high degree of satisfaction with the trainers' communication skills, preparation, information imparted, and the visual aids used. The results of a follow-up survey to determine how many trainees subsequently obtained NLM codes, the amount of searching done, and the problems experienced await analysis. 相似文献
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(***)MEDLEARN(***), an orientation to MEDLINE, was developed to educate members of the biomedical community to become competent on-line searchers. It appears in two complementary forms: an interactive terminal presentation available on the TYMSHARE Network and a supporting hard-copy manual which contains the didactic portions of the computer program as well as additional items which are not suitable for on-line presentation. (***)MEDLEARN(***), a flexible instructional tool, is divided into forty sections which may be selected in various sequences depending on the user's previous experience. Two MEDLINE simulations and feedback sections after practice on MEDLINE provide motivation for continued learning. The orientation program was evaluated at several medical centers with uniformly favorable results. 相似文献
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We explore the feasibility of automatically identifying sentences in different MEDLINE abstracts that are related in meaning.
We compared traditional vector space models with machine learning methods for detecting relatedness, and found that machine
learning was superior. The Huber method, a variant of Support Vector Machines which minimizes the modified Huber loss function,
achieves 73% precision when the score cutoff is set high enough to identify about one related sentence per abstract on average.
We illustrate how an abstract viewed in PubMed might be modified to present the related sentences found in other abstracts
by this automatic procedure. 相似文献
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N S Hewison 《Bulletin of the Medical Library Association》1989,77(4):332-336
The emergence of CD-ROM (compact disc/read-only memory) versions of the MEDLINE database requires experienced MEDLINE searchers to examine assumptions about searching MEDLINE, since some expectations may not be fulfilled by this new technology. When applied to a particular CD-ROM MEDLINE product, the evaluation procedure involves testing assumptions concerning database contents; mechanics of searching; display, print, and download capabilities; and user-friendly features. The extent to which a CD-ROM product preserves and exploits important MEDLINE strengths should be assessed, e.g., the MeSH controlled vocabulary, the designation of major and minor MeSH emphasis, and the use of subheadings. Search software characteristics that affect ease of searching and quality of results also need to be examined, e.g., the ability to truncate search terms and the order of precedence in which Boolean operators are evaluated. A checklist to assist in the evaluation process is presented, including search examples for use in testing search functions. 相似文献
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《Medical reference services quarterly》2013,32(1):43-58
A survey of users of PsycLIT and MEDLINE on CDROM was performed at an academic medical library. The questionnaire was designed to gather information about the user population, satisfaction of the users, the assistance needed to use the systems, and the type of searches being performed. The majority of users were graduate students in the schools of medicine, nursing, and pharmacy. In general, users were satisfied with the performance of the systems. Assistance from a librarian, printed documentation, or another patron was required by 85% of users, and they were generally satisfied with this assistance. Most searches were performed to obtain information on a subject. The results were remarkably similar for both databases. 相似文献
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The use of MEDLINE at the Calder Memorial Library of the University of Miami School of Medicine has grown so substantially over the past one and one-half years that we felt an evaluation of the service was appropriate. A one-page questionnaire was sent to 350 patrons who had requested MEDLINE searches in 1973. The response validated many of our assumptions about the user group and their reasons for using MEDLINE. Most surprising were the degree of enthusiasm, the willingness to pay out of personal funds, the apparent lack of knowledge about SDILINE, and the small number of critical comments. We expect that the experience gained from this assessment will enable us to make improvements in some aspects of our service, as well as to undertake more subject-specific evaluations at shorter intervals in the future. 相似文献
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Henner TA 《Medical reference services quarterly》2000,19(3):71-79
The widespread availability of free MEDLINE systems on the Internet raises issues about the continued need to allocate library funds for commercial, fee-for-service MEDLINE vendors. This paper explores the evolution and acceptance of free MEDLINE, looking in particular at NLM's PubMed system. Results of a survey on librarian perceptions of PubMed are discussed. The new generation of PubMed software is evaluated in the context of end-user needs and educational goals of medical libraries. 相似文献