پژوهشنامه پردازش و مدیریت اطلاعات
سال بیست و پنجم شماره 1 (پیاپی 59، پاییز 1388)

Sample of The present investigation was drawn from the total number of LIS articles published in Emereald Database during 2003-2008 period. 8320 articles was produced by 10760 researchers. The most prolific writers, countries having the highest number of articles, the most prolific research centers, and the busiest journals based on article count alone, were identified. Mean coefficient of collaboration among LIS scholars was 0.08. No significant correlation was found between scientific output and degree of collaboration. Findings indicated that in spite of the importance of joint research that would eventually lead to an increase in quality, coefficient of collaboration among LIS scholars is very low.

The present investigation, by reviewing 22,617 records indexed between 2000 and 2008 in the Web of Science database and employing citation analysis methods attempts to identify key authors and institutes and their degree of collaboration, core journals, rate of scientific output, publishing forms and languages and leading countries in this field. It also attempts to draw a histographic outline of the agricultural science. The average annual growth in publications for the period studied was shown to be seven percent. Total of 22,617 records were presented in 15 different formats in 25 languages. 173 countries were involved. All agricultural articles retrieved from WOS had been submitted from 14,852 institutes and published in 3252 journals. 51,655 authors were identified who had cited 658381 sources. The clusters formed in the histographic outline based on LCS and GCS also included five clusters.

In this paper the impact scope of Natural Language Processing (NLP) on translating search statements was determined by testing out research hypotheses. The NLP techniques employed for search statement processing included text parsing, linguistic forms identification, stopword removal, morphological analysis, and tokenization. Examination of the hypotheses indicated that using the method of translating the first equivalent term selected versus the method of selecting all equivalent terms, would contribute to increased efficiency of the review; that while morphological analysis of the terms not translated by the glossary, would increase the retrieval precision cutoff, there would be no significant difference established by the lack of such analysis thereof; that sentence translation as opposed to term by term translation, would increase the efficiency of Farsi-English proofreading. Other findings are also represented.

The present investigation was aimed to study the scope of presence of Dublin Core metadata elements and HTML meta tags in web pages. Ninety web pages were chosen by searching general search engines (Google, Yahoo and MSN). The scope of metadata elements (Dublin Core and HTML Meta tags) present in these pages as well as existence of a significant correlation between presence of meta elements and type of search engines were investigated. Findings indicated very low presence of both Dublin Core metadata elements and HTML meta tags in the pages retrieved which in turn illustrates the very low usage of meta data elements in web pages. Furthermore, findings indicated that there are no significant correlation between the type of search engine used and presence of metadata elements. From the standpoint of including metadata in retrieval of web sources, search engines do not significantly differ from one another.

Information seeking behavior and its various aspects had been the focus of attention by many researchers around the world. It has been tried and tested in many disciplines. Furthermore, its correlation with many variables such as gender, discipline, occupation, individual knowledge, personality, experience as well as specialization has been measured and had furnished useful results. The present investigation has tested and analyzed the correlation between information seeking behavior and prior knowledge among students enrolled in University of Tehran Graduate Program at both Masters and PhD level. Findings indicate that there exists a positive significance between these two variables. There had been, however, a negative correlation between time as a barrier with affirmation of prior knowledge. The findings are compatible with some prior investigations while incompatible with other s.

The respondents of the present study were drawn from the graduate students at Masters level whose dissertation proposals have been approved by the Graduate Education Council at either universities by the beginning of 2009. A questionnaire was used as primary data collection instrument. 236 students were given the questionnaire, to which 156 responded. Reviewing the level of internet anxiety among the respondents illustrated that the majority (82.1%) had less than average (score 60) internet anxiety. Nevertheless the sample studied furnished a normal distribution of scores. A significant difference was observed between mean internet anxiety scores and average internet anxiety score (60). It was indicated that the anxiety level in the population was less than average, although there was no significant difference among mean internet anxiety score among female and male students as well as students from various disciplines.

The present investigation was carried out using LibQual software in order to evaluate the user view on the quality of services offered by the Central Library of Tarbiyat Modarress University. It was conducted at three levels of minimum, maximum and real. The sample was drawn from in-house and outside users, including graduate students and faculty members. Findings indicated that in most cases there is a difference between users’ expectations and the services offered by the library. Users’ demands are somewhat satisfied at minimum level, but there is a significant gap with respect to desired level and users’ maximum expectations. Among different user groups, whether faculty or student, there is a significant difference with respect to the gap between the expectations and the services offered. There had been no significant difference of opinion among in-house and outside users regarding quality measures dealing with staff and the library space. There is however a significant difference regarding the quality of sources helf. By using the factor analysis method, four factors were identified as contributing factors to the quality of library services. These were “availability and accessibility of sources”, “Availability of qualified and diligent staff”, “Suitability of space for individual or group study and learning” and “Ready Access to Information”.

Special libraries fill a very important role in providing services to corporate users. The necessity to identify and promote the full spectrum of services offered by these type of libraries is felt more than ever. The present paper attempts to describe these services by reviewing the literature published in this respect.