The ability to collect, store, and manage data is increasing quickly, but our ability to understand it remains constant. In an attempt to gain better understanding of data, fi elds such as information visualization, data mining and graphic design are employed, each solving an isolated part of the specifi c problem, but failing in a broader sense: there are… (More)
We present a human-robot interactive scenario consisting of a memory card game between Hondapsilas humanoid robot ASIMO and a human player. The game features perception exclusively through ASIMOpsilas on-board cameras and both reactive and proactive behaviors specific to different situational contexts in the memory game. ASIMO is able to build a dynamic… (More)
We consider global attractors A f of dissipative parabolic equations ut = uxx + f (x, u, ux) on the unit interval 0 ≤ x ≤ 1 with Neumann boundary conditions. A permutation π f is defined by the two orderings of the set of (hyperbolic) equilibrium solutions ut ≡ 0 according to their respective values at the two boundary points x = 0 and x = 1. We prove that… (More)
We consider global attractors A f of dissipative parabolic equations u t = u xx + f(x; u; u x) on the unit interval 0 x 1 with Neumann boundary conditions. A permutation f is deened by the two orderings of the set of (hyperbolic) equilibrium solutions u t 0 according to their respective values at the two boundary points x = 0 and x = 1: We prove that two… (More)
We present a shape matching algorithm based on the chamfer distance transform which can be easily integrated into the well-known SIFT framework. The shape matching was designed to overcome the limitations of SIFT matching for objects which lack texture and have the majority of their features located on the object boundary.
Invasive species can alter the structure and functioning of ecosystems and affect the quality of the services they provide. Effects on biodiversity are well documented, but less is known about their impacts on ecosystem functioning and how these change as their populations increase. Invasive oysters, Crassostrea gigas, were added at increasing abundances to… (More)