Joint morphological-lexical language modeling for processing morphologically rich languages with application to dialectal Arabic

Language modeling for an inflected language such as Arabic poses new challenges for speech recognition and machine translation due to its rich morphology. Rich morphology results in large increases in out-of-vocabulary (OOV) rate and poor language model parameter estimation in the absence of large quantities of data. In this study, we present a joint morphological-lexical language model (JMLLM) that takes advantage of Arabic morphology. JMLLM combines morphological segments with the underlying lexical items and additional available information sources with regards to morphological segments and lexical items in a single joint model. Joint representation and modeling of morphological and lexical items reduces the OOV rate and provides smooth probability estimates while keeping the predictive power of whole words. Speech recognition and machine translation experiments in dialectal-Arabic show improvements over word and morpheme based trigram language models. We also show that as the tightness of integration between different information sources increases, both speech recognition and machine translation performances improve

Classical molecular dynamics simulation of microwave heating of liquids: the case of water

We perform a complete classical molecular dynamics study of the dielectric heating of water in the microwave region. MW frequencies ranging from 1.0 to 15.0 GHz are used together with a series of well-known empirical force fields. We show that the ability of an empirical force field to correctly predict the dielectric response of liquids to MW radiation should be evaluated on the basis of a joint comparison of the predicted and experimental static dielectric constant, frequency-dependent dielectric spectra, and heating profiles. We argue this is essential when multicomponent liquids are studied. We find the well-known SPCE and recently developed OPC3 empirical force fields of water are superior for reproducing dielectric properties, with the OPC3 force field particularly good for predicting heating rates at a range of MW frequencies

The Transmuted Weibull-Pareto Distribution

A new generalization of the Weibull-Pareto distribution called the transmuted Weibull-Pareto distribution is proposed and studied. Various mathematical properties of this distribution including ordinary and incomplete moments, quantile and generating functions, Bonferroni and Lorenz curves and order statistics are derived. The method of maximum likelihood is used for estimating the model parameters. The flexibility of the new lifetime model is illustrated by means of an application to a real data set

A new squat lobster of the genus Munidopsis (Crustacea, Decapoda, Munidopsidae) from the Mediterranean Sea

8 páginas, 4 figuras[EN]A new species of Munidopsis Whiteaves, 1874 is reported from the south of Crete, at 2046-2104 m, in the eastern Mediterranean Sea. The species (M. ariadne) is morphologically closely related to M. maunga Schnabel and Bruce, 2006, from New Zealand. The species is also close to M. polymorpha Koelbel, 1892, from Lanzarote, Canary Islands, and M. talismani A. Milne Edwards and Bouvier, 1894, from the NW Africa. The new species is described and illustrated and a diagnosis along with full illustration is provided for the latter 2 species.[ES]Una nueva especie de crustáceo del género Munidopsis (Crustacea: Decapoda: Munidopsidae) del mar Mediterráneo. – Se describe una especie nueva de Munidopsis Whiteaves, 1874 capturada al sur de Creta, a 2046-2104 m, en el Mediterráneo oriental. La especie (M. ariadne) es próxima morfológicamente a M. maunga Schnabel and Bruce, 2006, de Nueva Zelanda. La especie está también relacionada con M. polymorpha Koelbel, 1892, de Lanzarote, Islas Canarias, y M. talismani A. Milne Edwards and Bouvier, 1894, del NO de África.Peer reviewe