forest management as one of the important source of production is crucial and critical. in taking over the forest resources as one of the most important of natural resources in the world, it is essential to consider local stakeholders to implement forest action plan for forest co-management. therefore, this study aims at achieving to proper management of forests based on evaluating the stakehol...

Social network analysis emerged as an important research topic in sociology decades ago, and it has also attracted scientists from various fields of study like psychology, anthropology, geography and economics. In recent years, a significant number of researches has been conducted on using social network analysis to design e-commerce recommender systems. Most of the current recommender systems ...

One of research issues in social network analysis is to evaluate the position/importance of users in social networks. As the information diffusion in social network is evolving, it seems difficult to evaluate the importance of users using traditional approaches. In this paper, we propose an evaluation approach for user importance with fractal view in social networks. In this approach, the globa...

In this paper, we propose and present a practical tool for social networking services that can be used to help users find the opinion leaders or influential users in a certain community. This tool can act as a front-end to existing social networking services such as Twitter and gives a list of influential users in their network given a topic. Our approach differs from most of existing recommend...

In the current generation social network has become a popular way to communicate with each other which are spread across diverse location around the world. In social network any user can find other users and make friendship and they can make friend circle online around the world and thus users can form their own network. An Individual user can have multiple social network accounts to keep in to...

Is the random walk appropriate for modeling and analyzing social processes? We argue that many interesting social phenomena, including epidemics and information diffusion, cannot be modeled as a random walk, but instead must be modeled as broadcast-based or non-conservative diffusion. To produce meaningful results, social network analysis algorithms have to take into account differences between...

Abstract With the increasing of requirements from many aspects, various queries and analyses arise focusing on social network. Time is a common necessary dimension in types networks. Social networks with time information are called temporal networks, which can be when user sends message to another user. Keywords search consists finding relationships between group users that has set query labels...

In this thesis we provide a framework for a micro-blogging social network in an unstructured peer-topeer network. At a user level, a micro-blogging service provides (i) a means for publishing a microblog, (ii) a means to follow a micro-blogger, and (iii) a means to search for micro-blogs containing keywords. Since unstructured peer-to-peer networks do not bind either the data or the location of...