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This paper presents an investigation into the detection and classification of drum sounds in polyphonic music and drum loops using non-negative matrix deconvolution (NMD) and the Itakura Saito divergence. The Itakura Saito divergence has recently been proposed as especially appropriate for decomposing audio spectra due to the fact that it is scale(More)
Resumen En este artículo proponemos un procedimiento objetivo para la evaluación, basada en competencias, de los trabajos fin de grado (TFG) y de máster (TFM) en el contexto de las ingenierías. Dicho procedimiento se ha dividido en seis etapas: (1) definición de las competencias asociadas al TFG o al TFM y de indicadores objetivos; (2) definición de los(More)
In this paper we examine whether access to markets had a significant influence on migration choices of Spanish internal migrants in the inter-war years. We perform a structural contrast of a New Economic Geography model that focus on the forward linkage that links workers location choice with the geography of industrial production, one of the centripetal(More)
Music perception remains rather poor for many Cochlear Implant (CI) users due to the users' deficient pitch perception. However, comprehensible vocals and simple music structures are well perceived by many CI users. In previous studies researchers re-mixed songs to make music more enjoyable for them, favoring the preferred music elements (vocals or beat)(More)
—The focus of this work is to study how to efficiently tailor Convolutional Neural Networks (CNNs) towards learning timbre representations from log-mel magnitude spectrograms. We first review the trends when designing CNN architectures. Through this literature overview we discuss which are the crucial points to consider for efficiently learning timbre(More)
  • DOCUMENTS DE TREBALL, DE LA DIVISIÓ, Daniel A. Tirado, Jordi Pons, Daniel A. Tirado Fabregat, Jordi Pons Novell
  • 2003
This study presents new evidence concerning the uneven processes of industrialization in nineteenth century Spain and Italy based on a disaggregate analysis of the productive sectors from which the behaviour of the aggregate indices is comprised. The use of multivariate time-series analysis techniques can aid our understanding and characterization of these(More)
  • Elisenda Paluzie, Jordi Pons, Daniel A. Tirado, Adreça correspondència
  • 1999
* The authors gratefully acknowledge CICYT financial support through research projects SEC99-0432 and PB98-1187, as well as the comments of an anonymous referee. Daniel Tirado has contributed to this paper while visiting the European University Institute in Florence. A scholarship given by the Ministerio de Educación y Cultura, Program SM1999-004, has made(More)
  • Daniel A. Tirado, Jordi Pons, Elisenda Paluzie
  • 2009
In the spirit of Hanson (1997), we analyze the existence of regional nominal wage gradients in Spain during the interwar period (1914-1930) and their transformation following an important change in trade policy. However, our case study analyzes the effects of the substitution of an open economy by a closed one-exactly the reverse of the process studied by(More)
  • Daniel A. Tirado, Jordi Pons, Elisenda Paluzie
  • 2003
This paper gives new evidence on the relationship between integration and industrial agglomeration in the presence of scale economies, by testing directly one of the predictions that can be derived from Krugman (1991), that is, the existence of regional nominal wage gradients and its transformation following changes in trade regimes. Our case study analyzes(More)
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