Current methods for video activity localisation over time assume implicitly that temporal boundaries labelled model training are determined and precise. However, in unscripted natural videos, different activities mostly transit smoothly, so it is intrinsically ambiguous to determine labelling precisely when an starts ends time. Such uncertainties currently ignored training, resulting learning m...

In the analysis of boundary value problems in the theory of plasticity, the general situation arises that different partial differential equations are to be satisfied depending on whether the material is in the plastic or elastic state. The criterion determining the state at any material point depends on the dependent variables and their derivatives with respect to time. Thus the regions of app...

We have investigated the mechanism of formation of the body of a typical vertebrate, the chicken. We find that the body forms initially by folding at boundaries of stiffness contrast. These boundaries are dynamic lines, separating domains of different cell sizes, that are advected in a deterministic thin-film visco-elastic flow. While initially roughly circular, the lines of elastic contrast fo...

The task of image segmentation is to partition an image into non-overlapping regions based on intensity or textural information. The active contour methods provide an effective way for segmentation, in which the boundaries of the objects are detected by evolving curves. In this paper, we propose a new edge-based active contour method, which uses a longrange and orientation-dependent interaction...

We propose a series of techniques for hybridizing implicit and semi-implicit time integration methods in a manner that retains much of the speed of the implicit method without sacrificing all of the higher quality vibrations one obtains with methods that handle elastic forces explicitly. We propose our scheme in the context of asynchronous methods, where different parts of the mesh are evolved ...

Train delays are inconvenient for passengers and major problems in railway operations. When occur, it is vital to provide timely information regarding at their departing, interchanging, final stations. Furthermore, real-time traffic control requires on how propagate throughout the network. Among a multitude of applied models predict train delays, Markov chains have proven be stochastic benchmar...

In this paper, a new method for coupling the finite element method (FEM) and the element-free Galerkin method (EFGM) is proposed for linear elastic and geometrically nonlinear problems using local maximum entropy shape functions in the EFG zone of the problem domain. These shape functions possess a weak Kronecker delta property at the boundaries which provides a natural way to couple the EFG an...

The dynamics of 90” domain formation during a ferroelectric phase transition is studied using a computer simulation model based on time-dependent G&burg-Landau (TDGL) equations. This model does not make a priori assumptions on the domain morphologies and their evolution path, and takes into account simultaneously the non-local elastic and electric dipole-dipole interactions, and the local inter...