An automated method to register Medical Images is presented in this work. This new technique employs an iterative warping scheme and is performed, either over fully pixel information or using geometrical features such as ridges. The warp at each iteration is given by a number of local Finite Element transformations which provide a non-linear global warp. Results show that this technique can be ...

We propose a new learning to rank algorithm, named Weighted Margin-Rank Batch loss (WMRB), to extend the popular Weighted Approximate-Rank Pairwise loss (WARP). WMRB uses a new rank estimator and an efficient batch training algorithm. The approach allows more accurate item rank approximation and explicit utilization of parallel computation to accelerate training. In three item recommendation ta...

A new asynchronous cellular automata model is described. The model provides an experimental and theoretical framework to investigate quantitatively realistic simulations. The parallel execution of such simulations introduces the need of synchronisation of the asynchronous parallel processes. Time Warp is proposed as a synchronisation method for the parallel asynchronous cellular automata. We in...

The expectation value of the stress-energy tensor of a free conformally invariant scalar eld is computed in a two-dimensional reduction of the Al-cubierre \warp drive" spacetime. The stress-energy is found to diverge if the apparent velocity of the spaceship exceeds the speed of light. If such behavior occurs in four dimensions, then it appears implausible that \warp drive" behavior in a spacet...