Rapidly-exploring random tree (RRT), a sampling-based path-planning method, has become a hot research topic in mobile robot path planning due to its ability to find feasible solutions quickly in a given environment. RRT* is a variant of RRT that extended to the problem of finding optimal paths;...

Non-advertising-based mobile apps face several critical challenges when trying to monetize their free services: the choice of pricing strategies (whether to continue offering limited free services to current users) and aspects of product design (whether to provide exclusive secondary offerings...