This paper analyses the requirements of performing parallel transaction-oriented simulations with a special focus on the space-parallel approach and discrete event simulation synchronisation algorithms that are suitable for transaction-oriented simulation and the target environment of Ad Hoc Grids. To demonstrate the findings a Java-based parallel transaction-oriented simulator for the simulati...

In this paper, we develop a computationally efficient approach for warp factor estimation in Vocal Tract Length Normalization (VTLN). Recently we have shown that warped features can be obtained by a linear transformation of the unwarped features. Using the warp matrices we show that warp factor estimation can be efficiently performed in an EM framework. This can be done by collecting Sufficient...

The warp is a device that reframes notions of time and space. It is a common cultural artefact, one that audiences have come to recognise and believe in through various media. We accept the bed in Bedknobs and Broomsticks, the Tardis in Doctor Who, the supralight speed engines of science fiction, as time/space travel devices in order to get characters from A to B, to advance their progress alon...

The inter-image flow field is often modeled by some parametric warp function. Nearly all warps in the literature are based on a linear combination of control points, as for example the Free-Form Deformation (FFD) warp which uses the tensor-product of B-splines. It has been recently shown that the FFD warp models the affine projection of a deforming surface. This is also the case for all tensorp...

We introduce 3D warp brush, a new method for interactive shape modeling in an immersive virtual reality environment. 3D warp brushes are implicitly defined tools that operate on triangle meshes. We combine the efficiency of explicit mesh representations with intuitive implicit modeling operators. The area of influence of a 3D warp brush can be of arbitrary shape since it has an associated dista...