The Web 2.0 infrastructure allowed for a tremendous technological growth in the ways that information is distributed and exchanged among individuals. Web sites transformed to hosts of an abundance of user generated content in various domains comprising thereafter social media platforms. This evolution heralded the beginning of a new era for user modelling. Several types of applications have gai...

This paper proposes a manipulation technique to intuitively control multiple viewpoints of cameras in a 3D environment specifically, a primary viewpoint and additional viewpoints. The first key concept is to introduce a secondary coordinate system to determine the additional viewpoints and then to interlock the motion of the additional viewpoints with the relative motion of the primary viewpoin...