As Grid architectures provide resources that uctuate, applications that should be run on such environments must be able to take into account the changes that may occur. This document describes how applications can be built from components that may dynamically adapt themselves. We propose a generic framework to help the developpers of such components. In the case of a component that encapsulates...

By dynamic adaptation, we mean the ability to modify an application at run-time. This provides a system with the skill to dynamically alter its behaviour while it is running, depending on the (changing) conditions of the environment. In this work we show how to perform dynamic adaptation by means of contextual environments, which define flexible adaptation policies. Thus, our main goal is to de...

We propose an unsupervised dynamic language model (LM) adaptation framework using long-distance latent topic mixtures. The framework employs the Latent Dirichlet Allocation model (LDA) which models the latent topics of a document collection in an unsupervised and Bayesian fashion. In the LDA model, each word is modeled as a mixture of latent topics. Varying topics within a context can be modele...

The use of Commercial-Off-The-Shelf components in the development of software systems is supposed to result in a reduction of development costs and time by promoting reusability. On the contrary, due to the Black-Box nature they exhibit, the use of COTS products may result in a burden for developers as continuous re-adaptation may be required along the software life-cycle or even at runtime if ...

We investigate dynamic adaptation policies for rate adaptive multimedia streams in a network where each route traverses at most one bottleneck link. Dynamic adaptation allows clients to dynamically adapt the stream subscription level, i.e., time-average stream rate, in response to changes in available link capacity, and allows the system to maintain a lower blocking probability than is possible...

Mechanisms underlying interlimb transfer of adaptation to visuomotor rotations have recently been explored in depth. However, little data are available regarding interlimb transfer of adaptation to novel inertial dynamics. The present study thus investigated interlimb transfer of dynamics by examining the effect of initial training with one arm on subsequent performance with the other in adapta...

The real world consists of many scenes which contain a high dynamic range. While modern cameras are capable of capturing the dynamic range of these scenes, displays still only show a low dynamic range. Many tone map operators exist but very few consider the use of head-mounted displays. We create a dynamic tone map operator for use on panorama high dynamic range images by considering a user’s h...

The paper presents a methods to retrieve the speed of the sea surface from Along Track Interferometry (ATI) data beside the typical use for target speed retrieval, which is also mentioned. The describe technique provides for a data prefiltering in order to obtain the necessary accuracy because of the law speed range of the currents. Furthermore, an example of target velocity estimation is provi...

This document gives an overview of the formal work carried out under the phase 3 of the FEF project and serves as the final report on that work. It also discusses the relationship between earlier work and the phase 3 work and suggests some possible directions for future research. The work described was carried out under the DRA Front End Filter project RSRE 1C/6130. Distribution: HAT FEF File S...

This study presents an N-gram adaptation technique when additional text data for the adaptation do not exist. We use a language modeling approach to the information retrieval (IR) technique to collect the appropriate adaptation corpus from baseline text data. We propose to use a dynamic interpolation coefficient to merge the N-gram, where the interpolation coefficient is estimated from the word...