This paper presents an application of a distributed service-oriented architecture (FIPER) to the preliminary design of gas turbine. In this application, a one-dimensional analysis code is wrapped into an interface to create a network service. Several of these services are distributed across a grid of workstations. The FIPER architecture uses a service catalog that registers all the services tha...

For the modeling of complex and nonlinear crude oil price dynamics and movement, wavelet analysis can decompose the time series and produce multiple economically meaningful decomposition structures based on different assumptions of wavelet families and decomposition scale. However, the determination of the optimal model specification will critically affect the forecasting accuracy. In this pape...

This paper describes the initial results of a new form of evolutionary system specifically designed for time series modeling. The system combines a grammaticallybased Genetic Programming system with various optimisation techniques. The system uses the evolutionary system to construct the structure of equations and optimisation techniques to essentially fill in the details. Three forms of optimi...

There are very few approaches to measure the execution costs of lazy functional (logic) programs. The use of a lazy execution mechanism implies that the complexity of an evaluation depends on its context, i.e., the evaluation of the same expression may have different costs depending on the degree of evaluation required by the different contexts where it appears. In this paper, we present a nove...

In this paper we explore the possibility of defining an original pattern structure for managing syntactic trees. More precisely, we are interested in the extraction of relations such as drug-drug interactions (DDIs) in medical texts where sentences are represented as syntactic trees. In this specific pattern structure, called STPS, the similarity operator is based on rooted tree intersection. M...

Evaluating biochars for their persistence in soil under field conditions is an important step towards their implementation for carbon sequestration. Current evaluations might be biased because the vast majority of studies are short-term laboratory incubations of biochars produced in laboratory-scale pyrolyzers. Here our objective was to investigate the stability of a biochar produced with a med...

Five physicians' radiological assessments of coalworkers' simple pneumoconiosis (CWP) in 2600 coalminers at 10 British collieries have been studied in relation to the individuals' estimated lifetime (mean 33 years) exposure to respirable coalmine dust. Estimates of exposure were based on 20 years of observations at each colliery. Radiographic classifications were clearly associated with the mea...

This paper introduces a framework that mines temporal patterns in complex multivariate time series data. Since multivariate temporal time series could be noisy and inaccurately reported, first they are converted into time-interval sequences. Such sequences are then used to build temporal patterns backwards in time using temporal operators, which describe relation between two sequences (before a...

Computationally attractive and intuitively obvious simple bounds are proposed for finite service systems which are subject to random breakdowns. The services are assumed to be exponential. The up and down periods are allowed to be generally distributed. The bounds are based on product-form modifications and depend only on means. A formal proof is presented. This proof is of interest in itself. ...

Cache attempts to improve performance in P2P systems in three ways: improve response time, availability and load balancing. Despite their benefits, some proposals are very coupled with the application level and cannot be easily implemented in other environments, other use pre-defined structures difficult to maintain, or assume peers are physically homogeneous. So, the search for portable and fl...