Nadjla Hariri; Hosein Vakili Mofrad
Volume 10, Issue 6 , December 2012, , Pages 830-839
Abstract
Introduction: The huge volume of information and images on the Internet and its increasing growth has made the optimized search performance difficult for users. Among search tools, search engines are mostly used by users. This research was aimed to determine and compare the precision of general and specialized ...
Read More
Introduction: The huge volume of information and images on the Internet and its increasing growth has made the optimized search performance difficult for users. Among search tools, search engines are mostly used by users. This research was aimed to determine and compare the precision of general and specialized search engines in medical images retrieval. Methods: This applied, comparative approach survey was conducted in 2011. The research sample included 2 general search engines, i.e. Yahoo and Google, and 2 specialized medical search engines, i.e. OmniMedicalSearch and Trip Database. In order to determine and compare the precision of image retrieval in the four search engines, 10 medical keywords were chosen after consulting medical specialists and were searched in the mentioned search engines. Then the first 10 results retrieved by each search engine were extracted and the opinions of medical specialists about relevance of results were received. Descriptive statistics, Independent t-test were used to analyze the data with SPSS. Results: It was found that Google search engine has the most precision (90) in retrieving of relevant medical images and then OmniMedicalSearch search engine has precision to be equal 86/8. Among general search engines and specialized medical search engines there aren’t meaningful differences in retrieval of medical images. Conclusion: Despite of some overlap between search engines results, each search engine also was retrieved unique results. This matter indicate that the indexing algorithm of resources on the web different in the various search engines; and it is suggested to use several general and specialized search engines simultaneously to search medical images. Keywords: Internet; Medical Information Storage and Retrieval; Medical Illustration; Precision; Search Engine
Ali Valinejadi; Hossein Vakili Mofrad; Mohammad Reza Amiri; Hafez Mohammadhasanzadeh; Hamid Bouraghi
Volume 8, Issue 6 , January and February 2012, , Pages 824-834
Abstract
Introduction: One of the common methods for scientific activity assessment is scientometrics. It has been made possible with citation databases like Web of Science (WOS) and Scopus. In this paper, we studied the scientific production rate of Hamadan University of Medical Sciences during 11 ...
Read More
Introduction: One of the common methods for scientific activity assessment is scientometrics. It has been made possible with citation databases like Web of Science (WOS) and Scopus. In this paper, we studied the scientific production rate of Hamadan University of Medical Sciences during 11 years via scientometrics methods. Methods: In a descriptive, cross-sectional study, data was collected by searching WOS and Scopus databases for articles published during 1998-2008. The research population included 472 records in WOS and Scopus databases. Descriptive statistics was used in ISI and Scopuse.exe analyzers. Results: Most of the records related to Hamadan University of Medical Sciences were published in 2008 (61 records in WOS and 79 records in Scopus). The most active author was Mehrdad Hajilooyi (17 articles in both WOS and Scopus) while the most cooperative university was Tehran University of Medical Sciences (with 23 records in WOS and 51 records in Scopus). Saudi Medical Journal (with 9 records in WOS) and Iranian Biomedical Journal (with 13 records in Scopus) had the highest number of published scientific products of Hamadan University of Medical Sciences. Finally, neuroscience (26 records in WOS) and general medicine (196 records in Scopus) were the most attractive subjects of scientific products published by Hamadan University of Medical Sciences. Conclusion: Although the number of scientific products of authors at Hamadan University of Medical Sciences had a dramatic increase in recent years, it is still low in comparison with other universities of medical sciences. Therefore, research policy-makers should consider different aspects such as research budget increase, scientific writing workshops, collaboration with internal and overseas scientists and etc. to promote research.
