نتایج جستجو برای: Information retrieval

تعداد نتایج: 1197272  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده روانشناسی و علوم تربیتی 1388

the aim of this study is investigating the effect of teaching “metacognitive strategies” on the way which scientific information retrieval workes by the using of google scholar searching machine on the students of ms in the psycology & education faculty of allameh tabatabayi university in 2007-2008 academic year. the statistical community was the students of ms in psychology & education facult...

Journal: :پژوهشنامه کتابداری و اطلاع رسانی 0
رضیه اسماعیل پور نظام الدین فقیه

purpose: libraries and information centers as information storage and retrieval systems can develop with the adoption of cybernetics rules. this paper discusses system dynamics, control, feedback, and other cybernetic concepts especially in information storage and retrieval systems. methodology: this study is a review intending to find what cybernetics and lis have in common especially in the f...

Journal: :journal of advances in computer research 0

information retrieval can be achieved through computerized processes by generating a list of relevant responses to a query. the document processor, matching function and query analyzer are the main components of an information retrieval system. document retrieval system is fundamentally based on: boolean, vector-space, probabilistic, and language models. in this paper, a new methodology for mat...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1386

چکیده ندارد.

Background and Aim: This research aimed to study emotions attribution style of users in information retrieval based on Weiner's theory. Methods: The survey method was used in this study. Population consisted of graduate students in humanities at Imam Reza (AS) International University. Sample of 72 students was selected.  Data was collected by attribution style questionnaire (ASQ) and two resea...

Purpose: One of the most effective ways to achieve optimum information retrieval is through visualization of Information. Search strategies, probing skills, querying of information needs and analysis of information play a significant role in the accessing of necessary and useful information. Besides the factors mentioned above, information visualization can increase the availability level of in...

Journal: :international journal of information science and management 0
j. mehrad ph.d., president of rlst s. koleini m.s., head, dept. of information technology, rlst

with the increase of the volume of information and the progress in technology, the deficiency of traditional algorithms for fast information retrieval becomes more clear. when large volumes of data are to be handled, the use of neural network as an artificial intelligent technique is a suitable method to increase the information retrieval speed. neural networks present a suitable representation...

Journal: :British Journal of Anaesthesia 1970

Using the language-specific behavior in information retrieval systems can improve the quality of the retrieved results significantly. Part of the word that remains after removing its affixes is called stem. Stemming process can be used for improving the relevancy of the results in information retrieval system. Different morphological variants of words (plural, past tense…) will be mapped into t...

Journal: :مدیریت اطلاعات سلامت 0
علیرضا اسفندیاری مقدم استادیار، علوم کتابداری و اطلاع رسانی، دانشگاه آزاد اسلامی واحد همدان، همدان، ایران زهره بهاری موفق دانشجوی کارشناسی ارشد، علوم کتابداری و اطلاع رسانی، دانشگاه آزاد اسلامی واحد همدان، همدان، ایران

background: knowing the rate of overlapping in results obtained from information retrieval tools is important to prevent waste of time. medical and health-related information has an outstanding place among the variety of information available on the internet. hence, this research aimed to study the rate of overlap among medical search results derived from mesh (medical subject headings) in gene...

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