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      • Open Access Article

        1 - A System for Online Notification of Changes to Webblog Abstracts
        Mehdi Naghavi
        Exponential growth of information in the cyber space alongside rapid advancements in its related technologies has created a new mode of competition between societies to gain information domination in this critical and invaluable space. It has thus become quite critical More
        Exponential growth of information in the cyber space alongside rapid advancements in its related technologies has created a new mode of competition between societies to gain information domination in this critical and invaluable space. It has thus become quite critical to all stakeholders to play a leading and dominant role in generation of information and monitoring of voluminous information uploaded to this space. However, to achieve domination in monitoring large amount of information in cyberspace requires real-time monitoring using new techniques and approaches instead of traditional techniques. Concerned with the latter case, we limit our focus in this paper on Web blogs as an important part of the cyber space and propose a novel notification system for quick reporting of changes made to Web blogs. This is achieved by restricting the search for changes to high volumes of Web blogs only to changes to the abstracts of Web blogs derived from Web blogs. We show that this system works favorably compared to systems that require cooperation and synchronization between information providers. Manuscript profile
      • Open Access Article

        2 - Identifying Cloned Profiles on Online Social Networks by Identifying Nodes in Overlapping Communities and User Interactions
        Zahra Hamzehzadeh
        With the growing popularity of social networks, identifying Profile Cloning Attacks (PCAs) is an important challenge within the scope of privacy in the communications world. Until now, researchers have identified these attacks by using features such as profile informati More
        With the growing popularity of social networks, identifying Profile Cloning Attacks (PCAs) is an important challenge within the scope of privacy in the communications world. Until now, researchers have identified these attacks by using features such as profile information, link information, and interactions information that are based on methods like similarities and network structure. Previously suggested approaches lack specific routine and logic to track an attacker, and begin identifying PCAs with victim direct requests or according to the time of a friend request from an attacker. This research offers a new approach with a total of two major steps. Step one emphasizes that  legitimate users are attracted to interactions within their local communities; conversely, attackers are attracted to more dense areas. Step two was designed according to the analysis of the interactive behavior that is obtained from users 'earlier research. With this approach, according to a logic based on network structure, search cloned profiles can be identified.   Finally, a list of suspicious nodes to cloned nodes has been introduced with their scores that show the accuracy of selection. During the research, a logical relation between the average degrees of social network graph and the selection of the appropriate suspicious nodes with high priority was extracted. Finally, a general framework is proposed. Manuscript profile
      • Open Access Article

        3 - Determinants for entrepreneurial behavior among members of virtual agricultural social networks
        Pouria Ataei
        Entrepreneurship is an important issue that has been raised in all aspects of economic and social development. Now the most important question in the communities, especially in developing countries is how people can be entrepreneurs and how can they create entrepreneuri More
        Entrepreneurship is an important issue that has been raised in all aspects of economic and social development. Now the most important question in the communities, especially in developing countries is how people can be entrepreneurs and how can they create entrepreneurial opportunities. Nowadays because of technological development people can communicate with each other in many different ways, that virtual social network is one of them. Therefore, the aim of this study was to explain the determinants for entrepreneurial behavior of members of agricultural social networks. This study was among members of social networks "entrepreneurial knowledge exchange" The sample population was 126 people and population was 180 people. The assessment tool in this study was a questionnaire which its validity was confirmed by experts and its reliability was confirmed through pilot testing and estimated Cranach's alpha. Cranach's alpha was estimated between 0.76 - 0.93. Results showed that virtual social networking features, some entrepreneurial characteristics such as risk, identify and evaluate opportunities and incentives were entered in regression model and able to predict 76.6 percent of the variation in entrepreneurial behavior as a dependent variable. Finally, according to research findings, practical recommendations were presented. Manuscript profile
      • Open Access Article

        4 - The impact of social networking ads on the desire to buy customers Through the moderating role of trust and image of perceived website (case study: aval market)
        maryam akhavan
        The present research studies the effect of social networking advertising on the desire to buy customers through the moderate role of trust and image of the perceived website in the first company. The research method is descriptive and survey type. The statistical popula More
        The present research studies the effect of social networking advertising on the desire to buy customers through the moderate role of trust and image of the perceived website in the first company. The research method is descriptive and survey type. The statistical population of this research includes all customers of the first market in Tehran. The sample size was determined using the unlimited population formula of 384 people. The method of sampling is cluster sampling. The research data were collected using library and field method and the tools used in the questionnaire. The reliability of the questionnaires was confirmed by Cronbach's alpha (0.884) and the validity of the tool was confirmed by content and structure. The research data were analyzed using SPSS and Laser software and analyzed by statistical, descriptive and inferential statistics. The results of this research indicate that social networking ads, the value of social networking ads, Social networking stimulants have a positive impact on the desire to buy customers. However, the impact and customization of social networks has been rejected by the desire to buy customers. Also, the results of moderating assumptions show that the trust and image of the perceived web site significantly affects the impact of social networking ads on the willingness to buy customers. Moreover, the results show that the interaction of social networking ads and gender after adding to the meaning model Not a dude     Manuscript profile
      • Open Access Article

        5 - Sociological analysis of the effect of cyberspace on students' academic achievement
        sayyed atollah sinaee sara mousavi mashhadi
        The growing use of digital technologies has made cyberspace and social networks an important part of people's daily lives. In addition, digital technologies and cyberspace have revolutionized the tools, methods, and content of learning in education systems. At the same More
        The growing use of digital technologies has made cyberspace and social networks an important part of people's daily lives. In addition, digital technologies and cyberspace have revolutionized the tools, methods, and content of learning in education systems. At the same time, the study of the dimensions and effects of the widespread use of communication and information technologies has been the focus of researchers from the beginning and the present study pursues such a goal. This research was conducted by correlation research method and a questionnaire. The statistical population includes all female students in the first year of high school, district two of education in Mashhad, in the academic year 1300-1400. The sample size was selected based on Morgan formula 380 people and information was collected using available sampling method. Findings of this study show that the motivation for the development of the user group in cyberspace and social networks was higher than the average motivation for the development of the non-user group. Manuscript profile