Hypothesis ranking (HR) is an approach for improving the accuracy of both domain detection and tracking in multi-domain, multi-turn dialogue systems. This paper presents the results of applying a universal HR model to multiple dialogue systems, each of which are using a different language. It demonstrates that as the set of input features used by HR models are largely language independent a sin...

Kurzfassung. Der Einsatz von 3D-Ultraschall ist für zahlreiche medizinische Applikationen interessant. Ein 3D-Ultraschall Datensatz kann aus 2D-Schichtbildern rekonstruiert werden, wenn deren Positionen im Raum bekannt ist. Mittels eines Trackingsystems kann die Position eines Schallkopfes im Raum verfolgt werden. Die Beziehung von Bildebene und Schallkopf muss durch eine Kalibrierung bestimmt ...

this paper presents future trends of urban wastes and their impacts on the environment of african cities using plausible mitigation scenarios. to accomplish this, an integrated dynamic model for urban waste flows was developed, tested, calibrated and validated. its parameter sensitivity was analyzed. using population projection up to 2052 with different levels of technological implementation, p...

This paper deals with the combination of classification models that have been derived from running different (heterogeneous) learning algorithms on the same data set. We focus on the Classifier Evaluation and Selection (ES) method, that evaluates each of the models (typically using 10-fold cross-validation) and selects the best one. We examine the performance of this method in comparison with t...

Observational campaigns of the mid-latitude ionosphericE-region with sounding rockets and ground-based instruments were conducted in 1996 (SEEK) and 2002 (SEEK2). Both of them were successfully conducted to bring important findings about the mid-latitude E-region and quasiperiodic (QP) VHF radar echoes. The observational results in the SEEK and the SEEK-2 are compared with numerical simulations...

Evolution Strategies (ES) are a class of Evolutionary Algorithms based on Gaussian mutation and deterministic selection. Gaussian mutation captures pair-wise dependencies between the variables through a covariance matrix. Covariance Matrix Adaptation (CMA) is a method to update this covariance matrix. In this paper, the CMA-ES, which has found many applications in solving continuous optimizatio...

Pluripotent embryonic stem (ES) cells have been used to produce genetically modified mice as experimental models of human genetic diseases. Increasingly, human ES cells are being considered for their potential in the treatment of injury and disease. Here we have shown that mutation in murine ES cells, heterozygous at the selectable Aprt locus, differs from that in embryonic somatic cells. The m...

Statist ical es t imat ion of large-scale dynamic sys tems governed by stochastic partial differential equations i s impor tant in a wide range of scientific applications. However, t he realization of computationally e f i c i en t algor i thms f o r statistical es t imat ion of such dynamic syst e m s i s ve ry d i f icu l t . Convent ional linear least squares methods are impractical f o r bo...

Enhancing the regeneration of axons is often considered to be a therapeutic target for improving functional recovery after peripheral nerve injury. In this review, the evidence for the efficacy of electrical stimulation (ES), daily exercise and their combination in promoting nerve regeneration after peripheral nerve injuries in both animal models and in human patients is explored. The rationale...