منابع مشابه
Un enfoque gramatical para la extracción de términos índice
The extraction of the keywords that characterize a document in a given collection is one of the most important components of an Information Retrieval system. In this article, we propose to apply shallow parsing, implemented by means of cascades of finite-state transducers, to extract complex index terms based on an approximated grammar of Spanish. The coverage of the grammar is small but it all...
متن کاملUso del punto de transición en la selección de términos índice para agrupamiento de textos cortos
Nowadays a wide variety of clustering methods exist. The critical decision of what keywords will be used in the representation of the collection is considered in those methods. In this paper we deal with the problem of clustering a set of short texts from an specific domain. Thus, the problem become to be more complex because of the small number of terms that can be used in term selection proce...
متن کاملAnálise de Estratégias de Acesso a Grandes Volumes de Dados
The efficient processing of big data has become an issue for several areas. In science, researchers have used dataflows to express computational analysis and experiments on data. An important feature of scientific dataflows is that the analysis must scan a large set of data. In this sense, this work investigates alternatives for storing large volumes of data favoring the execution of dataflows ...
متن کاملÍndice 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.
متن کاملIndexation de documents audio : Cas des grands volumes de données
This thesis is devoted to techniques for speaker-based recognition systems to scale up to large amounts of data and speaker models. We have chosen to partition audio documents (news broadcast) according to speakers. The mel-cepstral acoustic characteristics of each speaker are model through a probabilistic Gaussian mixture model. First, speaker change detection in the stream is carried out by B...
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ژورنال
عنوان ژورنال: EccoS – Revista Científica
سال: 2008
ISSN: 1983-9278,1517-1949
DOI: 10.5585/eccos.v7i1.413