نتایج جستجو برای: information retrieval system

تعداد نتایج: 3081082  

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...

Question Answering (QA) is an emerging important field in Information Retrieval. In a QA system the archive of previous questions asked from the system makes a collection full of useful factual nuggets. This paper makes an initial attempt to investigate the reuse of facts contained in the archive of previous questions to help and gain performance in answering future related factoid questions. I...

Journal: :British Journal of Anaesthesia 1970

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...

1995
Rui Marinheiro

In hypermedia systems, links are used to connect related information in different types of media, for example: text, images, sound, etc. In this way, authors and users have means of accessing the information in a non-sequential manner, in the way they prefer, by following links that may be visualised as highlighted text or by other means. However, when simply following links while seeking infor...

, , AllahBakhshian, Leili, Rahimi, Forough, Riahinia, Nosrat,

Background and Aim: The main aim of Information storage and retrieval systems is keeping and retrieving the related information means providing the related documents with users’ needs or requests. This study aimed to answer this question that how much are the system relevance and User- Oriented relevance are matched in SID, SCI and Google Scholar databases. Method: In this study 15 keywords of ...

Content-based image retrieval and text-based image retrieval are two fundamental approaches in the field of image retrieval. The challenges related to each of these approaches, guide the researchers to use combining approaches and semi-automatic retrieval using the user interaction in the retrieval cycle. Hence, in this paper, an image retrieval system is introduced that provided two kind of qu...

Journal: :Bulletin of the American Society for Information Science and Technology 2005

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