This contribution presents a stochastic analysis model, aiming at segmentation of the motion vector fields from compressed video sequences into regions of coherent motion. We propose a stochastic motion coherency model based on parametric affine motion. This model applies the 2-D GibbsMarkov random field to identify motion-coherent smoothcontour regions and corresponding motion model estimates....

This paper presents a new coherency identification method for dynamic reduction of a power system. To achieve dynamic reduction, coherency-based equivalence techniques divide generators into groups according to coherency, and then aggregate them. In order to minimize the changes in the dynamic response of the reduced equivalent system, coherency identification of the generators should be clearl...

A major goal of this work is to specify some steps of the process by which participants maintain coherency in their conversations. The underlying element of the analysis is a construct called a 'context space'. Roughly, a group of utterances that refers to a single issue or episode forms the basis for a context space. Superficially a conversation is a sequence of utterances; at a deeper level i...

The effect of coherency WC/Co phase boundaries on the fracture toughness of the nanocrystalline WC-Co cemented carbides is studied by MD simulation method. The simulation results show that the nanocrystalline WC-Co cemented carbides with coherency WC/Co phase boundaries has higher fracture toughness than that without coherency WC/Co phase boundaries. Moreover, the mechanism of why coherency WC/...

In this paper, we de ne a measure for evaluating conversational coherency and propose a method of computing it. We de ne a deliberation stream in email communication and construct deliberation structure which the deliberation streams are introduced into. And we de ne discontinuity between utterances as the measure for evaluating conversational coherency by using the deliberation structure, con ...

One of the key challenges in chip multi-processing is to provide a programming model that manages cache coherency in a transparent and efficient way. A large number of applications designed for embedded systems are known to read and write data following memory access patterns. Memory access patterns can be used to optimize cache consistency by prefetching data and reducing the number of memory ...

This work studies the interaction of Web proxy cache coherency and replacement policies using trace-driven simulations. We speciically examine the relative importance of each type of policy in aaecting the overall costs, the potential of incorporating coherency issues in cache replacement and the inclusion of additional factors such as frequency of resource use in replacement and coherency poli...