Identidad Taxonómica de los ‘Talas’: Análisis morfológico de Celtis tala y Celtis pallida (Celtidaceae)

Índice de contraste morfológico basado en el análisis de los contornos y el fondo de la imagen

In this work, a contrast index for quantifying the perceived contrast in an image is proposed. The index is based on Weber’s law and takes into account background estimation through the erosion of opening by reconstruction. The performance of our proposal is illustrated with a set of images processed by contrast mapping and compared with two contrast measures given in the literature.

Endocarp morphology of Iranian Celtis (Celtidaceae-Cannabaceae)

Endocarp morphology of 4 species of Iranian Celtis was examined using light and scanning electron microscopes. Macro- and micro-morphological characters were included endocarp shape, color, size, surrounding rim, ornamentation and SEM structure of the outer layer of the endocarp. Endocarp morphology of the examined specimens exhibit variation in all characters. Endocarp shape varies from globul...

Análisis y caracterización de los sonidos cardiacos de una ballena jorobada adulta en su entorno natural

Gestión de la identidad de locutor y perfiles de usuario en un sistema de diálogo

In this paper we present an approach to capture user preferences during their interactions with a spoken dialogue system (SDS) and to exploit these preferences into the dialogue manager module. We use the output of an unsupervised speaker identification module and a natural language understanding module to adapt the behaviour of the SDS to each particular user by developing a statistic analysis...

Análisis sintáctico combinado de gramáticas de adjunción de árboles y de gramáticas de inserción de árboles

Adjunction is a powerful operation that makes Tree Adjoining Grammar (TAG) useful for describing the syntactic structure of natural languages. In practice, a large part of wide coverage grammars written following the TAG formalism is formed by trees that can be combined by means of the simpler kind of adjunction defined for Tree Insertion Grammar. In this article, we describe a parsing algorith...