Creating descriptors for trajectories has many applications in robotics/human motion analysis and video copy detection. Here, we propose a novel descriptor for 2D trajectories: Histogram of Oriented Displacements (HOD). Each displacement in the trajectory votes with its length in a histogram of orientation angles. 3D trajectories are described by the HOD of their three projections. We use HOD t...

In the event of a black hole (BH) forming stellar collapse, neutrino signal should terminate abruptly at moment BH formation, after phase steady accretion. Since neutrinos are expected to reach Earth hours before electromagnetic signal, combined detection burst through multiple telescopes could allow promptly determine angular location nearby collapse in sky with high precision. this paper, we ...

residential mobility is an important ecological mobility which, besides physical impacts, has contributed in shaping or reshaping of urban social milieus. the analyses of results related to a sample of 17510 households inhabiting in 40 regions of mashhad indicates that 46.9 percent of them had experienced a residential relocation during a period of ten years, the maximum of which (62.8 percent)...

Separations, Collapses, and Closure Properties Holger Spakowski1?, Mayur Thakur2??, and Rahul Tripathi2? ? ? 1 Institut für Informatik, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany. [email protected] 2 Department of Computer Science, University of Rochester, Rochester, NY 14627, USA. fthakur,[email protected] Abstract. We study the complexity of quantum c...

the problem of navigation among movable obstacles (namo) is to find a collision free path for a robot while the robot is able to manipulate and transfer some objects (if possible or needed) to clear its path toward the goal. namo is a np-complete problem and is in a class of motion planning problems that have dynamic environments. in this domain, an optimal plan for the robot can be defined wit...