Rafael Ferrer

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The purpose of this study was to determine the prevalence of asymptomatic genital infection with herpes simplex virus in women attending a venereal disease clinic in Puerto Rico. Genital samples were obtained from 123 consecutively enrolled patients. Vero cells were used for viral isolation; isolates demonstrating cytopathic effect were stored at -70 C and(More)
Music cognition and real-time listening: denotation, cue abstraction, route description and cognitive maps .. Auditive analysis of the Quartetto per Archi in due tempi (1955) La psychologie cognitive face à la musique contemporaine : une contribution essentielle de Irène Deliège .. Cue abstraction, paradigmatic analysis and informative dynamics: towards(More)
Ferrer Flores, Rafael The Socially Distributed Cognition of Musical Timbre: a Convergence of Semantic, Perceptual, and Acoustic Aspects Jyväskylä: University of Jyväskylä, 2012, 42 p.(+included articles) (Jyväskylä Studies in Humanities ISSN ISBN 978-951-39-4691-3 (nid.) ISBN 978-951-39-4692-0 (PDF) Finnish summary Diss. The cognition of musical timbre is(More)
Supervised recommender systems can be broadly classified into (a) regression models that predict ratings of unlabeled items and (b) ranking models that rank items according to an order of interest. Although both models assess the value of an item, regression may be less precise than ranking because the regressor does not learn a distinction between two(More)
We introduce cRhyme, a computer system that transforms pairs of sentences to make them rhyme. cRhyme takes in a pair of sentences and performs a series of syntactic transformations to one or both sentences in order to make them rhyme without altering the meaning of either. This makes cRhyme the to-go tool for amateur poets and songwriters who know what to(More)
Optical spectroscopy of a primordial isotope has traditionally formed the basis for understanding the atomic structure of an element. Such studies have been conducted for most elements and theoretical modelling can be performed to high precision, taking into account relativistic effects that scale approximately as the square of the atomic number. However,(More)
Operational definitions of music preferences are at the core of psychological research exploring individual differences (personality, expertise) and their relation to a variety of musical behaviors. However, the measurement instruments for music preferences mostly rely on subjective likings for genres, a notion known to be problematic in several ways. We(More)
Common techniques in collaborative filtering rely on finding low-rank matrix approximations to the adjacency matrix (ratings that users assign to items), essentially representing users and items as a collection of a small number of latent features. One issue that arises in many real world datasets for collaborative filtering is that the number of observed(More)