نشریه بازیابی دانش و نظام های معنایی
پیاپی 12 (پاییز 1396)

The purpose of this research is to investigate the role of data mining on the organizational performance of Tehran University libraries with knowledge management approach. The research method is analytic-analytical. To analyze data from SP.S.S. And amos have been used. The research community includes the director of the central library and satellite libraries of the state universities of Tehran. In total, 213 central and satellite libraries and the same number of managers are identified and based on the Cochran formula, a sample of 137 managers. Regarding the normal distribution of data, the parametric test of tectonuclear / single-test test is used to examine the first three hypotheses (knowledge management status, organizational performance, and data mining utilization). The hypotheses of the conceptual model of research are also analyzed based on structural equations. The findings of the study indicate that only two hypotheses were confirmed by six hypotheses. None of the hypotheses related to the conceptual model of research, which were the main hypotheses of the research, were not confirmed. The results of this study showed that the status of data mining and organizational performance of the manager of the libraries of Tehran's public universities is moderate and knowledge management status is desirable. The use of data mining and knowledge management on organizational performance of the director of public libraries in Tehran's public universities is not affected. The use of data mining on knowledge management from the perspective of the director of these libraries is also not effective.

To identify the scientific, educational, cultural and social goals of public libraries in the vision document and the fifth and sixth development plan, The general policies of the country's economic strength document, Document of the comprehensive scientific plan of the country, document of the country's cultural engineering plan and the document on the fundamental transformation of education. This descriptive study was conducted by documentary method and analytical content analysis based on 12 missions of the public library from the IFLA in the upstream documents of the Islamic Republic of Iran.
Findings: The examination of documents on the one hand shows that in some related sections to the goals of public libraries, they are not directly mentioned in public libraries, while some of these sections are pursued and implemented by the public libraries. On the other hand, in view of the goals and characteristics of the public library, it is possible to identify in the upstream documents the sections in relation to the goals and roles of the public library and to design and implement the necessary measures for the operation of these sections by public libraries
Value: The present research can provide a clear picture of the major educational, cultural and information goals of the country related to public libraries, while also positioning these libraries in the vision document and development plans Aims at identifying and defining new roles for public libraries in fulfilling the diverse educational, cultural and information goals of the country.

The aim of this paper is to investigate the effective factors on internet use in postgraduate and PhD students in universities of west and northwest of Iran (Uremia, Kurdistan, Razi University of Kermanshah and Bu Ali University of Hamedan). The studied sample includes 609 students in these two educational levels and data has been collected using questionnaire. In addition, all graduate groups including the Department of Humanities, the Department of Basic Sciences, the Department of Engineering, and the Department of Agriculture have been used in sampling. In this study, linear regression, Logit regression and Probit method with SPSS software from analytics have been used. In addition, the Cronbach's alpha coefficient, which evaluates the reliability of the questionnaire, is 0.87 which indicates an acceptable reliability for this questionnaire. The results of this study indicate negative impact of university on internet use and positive effect of educational group, semester, employment status and information sources in the use of internet. Moreover, Hosmer- Lemeshow test confirms the presented model. Finally, it is suggested that university administrations provide clear and practical policies for accessing and using the internet, and designing specialized databases designed to operationalize them so that the fields scientific development, through which economic development and so on.

The main goal of this study was to Identify Digital Librarian’s Technical skills in Central Libraries of the State Universities in Tehran. In this research, a quantitative approach with descriptive survey method was used. The statistical population included 108 digital librarians of central libraries in 14 Tehran state universities. The data gathering tool was a researcher-made questionnaire. The validity of the tool was based on the opinions of experts in digital libraries and its reliability was confirmed by Cronbach's alpha of 0.883. Data analysis was done using descriptive and inferential statistics using Kolmogorov-Smirnov test, independent sample t-test and independent t-test. The findings showed that the highest mean in hardware, the skill of working with printers (3.44), in software, the skill of converting file formats (3.89), on the Internet and network, the ability to use intranet (3.91) ), In compilation, the ability to download resources and use manager download (77/3), digital information processing, factor utilization of classification systems (48/3), digital services, ability to provide interactive retrieval services ( 80.3) and in the protection and maintenance, the ability to backup (21.3). The results showed that technical skills of the digital librarians are not in a desirable mood.

Allameh Tabataba’i University’s Central Library Services quality assessment and identification of Libqual indicators needed for improvement is the research objective. Survey research method was applied according to the Libqual model and data were gathered by questionnaire. Users’ expectancies gap between service Minimum and Maximum rank with receipt rank and difference significance among the ranks were analyzed. Data were collected through the 100 member user sample. Users’ received service for service impact, information control, and library as place was lower than their minimum expectation that showed users dissatisfaction. Amount of users’ Minimum expectation for improvement of service impact was more than two others. Lowest amount of service receipt and highest degree for receipt rank dissatisfaction were identified for library as place indicator. Highest rate of dissatisfaction on Maximum expectation rank was for library as place and information control indicators accordingly.
Originality: Filling performance assessment gap, harmony with user population, economic justification, user satisfaction, and user orientation are the research benefits and values.

In today’s world, freedom of information has known as a prerequisite of democracy and has titled as a democracy’s oxygen. Experience has indicated that the right of access of people to information, to end up in variety of media’s debates and increases the possibility of investigation of information’s truth to be represented. So, it is necessary that the acquaintance of media’s followers with content and mechanism of enforcement the right of access to information. Therefore, future studies as a novel knowledge can help experts this district until to determine principle obstacle of freedom of information, to trace a practical mechanisms of expansion and amplitude. In this essay, the futures of encounter freedom of information are analyzing in Iran’s media. The original question of this study is, the investigation of conceivable future are in media to freedom of information. This research is an exploratory and data’s of this study have been analyzed and compiled to procedure of analyzing of study includes assiduities are in media and freedom of information’s district. This sample of statistical volume is 65 persons who they have selected by snowball. In this study has discussed about the influence of economic, social, legal, political and technology factors on trends of Freedom of information. In view of this factor and investigation of index of pertaining to each one, four scenarios have been planned for freedom of information in Iran’s press.