using virtual social media and networks widely and relations based on electronic communication have transformed political and social activities in recent decades. through this, in this essay we are going to review the effects of virtual social media on the field of politics in iran. therefore, this essay propounds the question that how has the virtual social media caused transformation on the f...

As websites, social networks, blogs, and online portals proliferate on the internet, authors are producing reviews, opinions, ideas, ratings, feedback. The emotional content of this writer may be about things like books, people, hotels, items, studies, events, so on. These emotions have great value for businesses, governments, people. majority writer-generated material requires usage text minin...

In this paper, the problem of estimating the direction of arrival of signals of which some may be perfectly correlated is considered. This method can be applied in the situation that the non-Gaussian independent and coherent signals coexist with unknown Gaussian noise. In this method at first via mappings, the virtual uniform linear array (ULA) and also the shifted versions of this virtual ULA ...

nowadays, the idea of creating virtual organizations has been presented by scholars as a new method of collaboration and managing the collaboration and has been known as an applicable approach in insurance industry. based on above applicability, this idea has been considered in this paper for a virtual insurer organization and according to efficiency and effectiveness of enterprise architecture...

This paper identifies requirements and proposes a surface collision detection algorithm for assisting in assembly/disassembly and maintenance verification operations in virtual prototype environments. Virtual prototype models are defined as a collection of surfaces. Available collision detection toolkits for virtual environments are based on polygons. The integration of surface knowledge into t...

Virtual Reality is used successfully to treat people for regular phobias. A new challenge is to develop Virtual Reality Exposure Training for social skills. Virtual actors in such systems have to show appropriate social behavior including emotions, gaze, and keeping distance. The behavior must be realistic and real-time. Current approaches consist of four steps: 1) trainee social signal detecti...