We consider the problem of a robot inside an unknown polygon that has to nd a path from a starting point s to a target point t. We assume that it is equipped with an on-board vision system through which it can get the visibility map of its surroundings. Furthermore, we assume that the robot is contained in a simple polygon that belongs to the class of generalized streets. We consider three prob...

We define an elliptic equation for Hermitian metrics which is related to the Einstein condition. Solutions to this equation are closely related to Kähler-Einstein metrics, and are automatically Kähler-Einstein when a certain non-positive condition is satisfied by c1(M). Given this, a natural flow equation arises taking Hermitian metrics to Kähler metrics. We prove short time existence and regul...

Mean streets represent those connected subsets of a spatial network whose attribute values are significantly higher than expected. Discovering and quantifyingmean streets is an important problem with many applications such as detecting high-crime-density streets and high crash roads (or areas) for public safety, detecting urban cancer disease clusters for public health, detecting human activity...

We explore geometry of London’s streets using computational mode of an excitable chemical system, Belousov-Zhabotinsky (BZ) medium. We virtually fill in the streets with a BZ medium and study propagation of excitation waves for a range of excitability parameters, gradual transition from excitable to subexcitable to non-excitable. We demonstrate a pruning strategy adopted by the medium with decr...

Roswell Park Cancer Institute, Department of Molecular and Cellular Biology, Elm and Carlton Streets, Buffalo, New York 14263-0001, U.S.A., Roswell Park Cancer Institute, Department of Human Genetics, Elm and Carlton Streets, Buffalo, New York 1^263-0001, U.S.A., Roswell Park Cancer Institute, Division of Medicine, Elm and Carlton Streets, Buffalo, New York 14263-0001, U.S.A., and Ludwig Instit...

This study presents temporal and spatial variations in personal exposure of parking attendants in a busy conurbation in the northern part of the UK. Two traffic related pollutants carbon monoxide (CO) and ultrafine particulates (UFP), mainly associated with urban drives, have been considered for two distinct locationsone, in the city centre and the other in a suburban area of Leeds, a prominent...

Humans live interacting with other people and do everyday tasks in individual and collective ways. Robotics people are interested in building robots that can interact with people in the same way that humans do. In order to reach this goal robots must learn from the interaction with humans and learn the human skills used in everyday life to acquire robot social behaviors that can then be used in...