In this paper, we present improved wordlevel confidence measures based on posterior probabilities for children’s oral reading continuous speech recognition. Initially we compute posterior probability based confidence measures on word graphs using a forward-backward algorithm. We study how an increase of the word graph density affects the quality of these confidence measures. For this purpose we...

Golsar is located in north-west of Rasht the capital city of Guilan province. This region, according to standards 2800, is identified among the regions with relatively high risk of earthquake. A set of historical and instrumental seismicity data used in radius of 200 km which covers the period twelveth century until now. Kijko method has been applied for estimating for parameters considering of...

A pair of covalently linked molecular dyads is described in which two disparate boron dipyrromethene dyes are separated by a tolane-like spacer. Efficient electronic energy transfer (EET) occurs across the dyad; the mechanism involves important contributions from both Förster-type coulombic interactions and Dexter-type electron exchange processes. The energy acceptor is equipped with long paraf...

Main techniques of probability density estimation on Riemannian manifolds are reviewed in the hyperbolic case. For computational reasons we chose to focus on the kernel density estimation and we provide the expression of Pelletier estimator on hyperbolic space. The method is applied to density estimation of re ection coe cients from radar observations.

In a simple model for sports, the probability A beats B is a specified function of their difference in strength. One might think this would be a staple topic in Applied Probability textbooks (like the Galton-Watson branching process model, for instance) but it is curiously absent. Our first purpose is to point out that the model suggests a wide range of questions, suitable for “undergraduate re...

The extremal behaviour of a Markov chain is typically characterized by its tail chain. For asymptotically dependent Markov chains existing formulations fail to capture the full evolution of the extreme event when the chain moves out of the extreme tail region and for asymptotically independent chains recent results fail to cover well-known asymptotically independent processes such as Markov pro...

Information Systems professionals can participate in the strategic planning and policy development of the business organization by applying sound techniques for rational decision making. Decision Support Systems often utilize inferential techniques to provide analysis and knowledge creation for business and its information systems. One common method of reasoning under uncertainty is the applica...

This paper is concerned with the solution of the optimal stopping problem associated to the value of American options driven by continuous time Markov chains. The value-function of an American option in this setting is characterised as the unique solution (in distributional sense) of a system of variational inequalities. Furthermore, with continuous and smooth fit principles not applicable in t...