Recommender system is an information filtering tool used to alleviate information overload for users on the web. Collaborative filtering recommends items to users based on their historical rating information. There are two approaches: memory-based, which usually provides inaccurate but explainable recommendations; and model-based, whose recommendations are more precise but hard to understand. Here we propose a Bayesian model that not only provides us with recommendations as good as matrix factorization models, but these predictions can also be explained. The model is based on both user-based and item-based collaborative filtering approaches, which recommends items by using similar users' and items' information, respectively. Experiments carried out using four datasets present good results compared to several state-ofthe-art baselines, achieving the best performance using the Normalized Discounted Cumulative Gain (nDCG) quality measure and also improving the prediction's accuracy in some datasets.
La presente investigación tiene como propósito indagar ciertos aspectos relacionados con el discurso nacional de principios del siglo XX, centrando nuestra atención en un amplio reportaje acerca de Arica y Tacna publicado por entregas en el diario La Unión de Valparaíso en diciembre de 1922, momento de tensión diplomática entre Perú y Chile cuyo entorno era una posible definición plebiscitaria de los límites de la nueva frontera norte. Este tipo de reportajes -que basaban su efectividad en la conjunción entre imágenes fotográficas y textos-fueron utilizados como una postura periodística que se correspondía con la alianza practicada entre las políticas de chilenización del Estado y las empresas editoriales para crear y fomentar un imaginario nacionalista postguerra del Pacífico. En este sentido, la intencionalidad estratégica del reportaje de La Unión consistió en replicar una idea general preconcebida, estereotipada, que daba a entender la conveniencia de que los territorios ocupados y aún en disputa continuaran bajo el dominio de Chile, debido a que el país era el más apto para ejercer el progreso y la modernización. Estos intereses se habían tornado esenciales para la elite porteña, que fue la tribuna hacia donde apuntó en especial el diario.Palabras claves: Plebiscito, reportaje periodístico, chilenización, nueva frontera norte.This investigation aims to look at certain issues related to Chile's national discourse at the beginning of the twentieth century, focusing our attention on a wide-ranging report about Arica and Tacna published in installments in the newspaper La Unión in December 1922. A moment of diplomatic tension between Peru and Chile whose backdrop was the possible definition of the new northern border's boundaries through a plebiscite. This kind of report -whose effectiveness was based on bringing photographic images and text-was used as a journalistic position that corresponded with the alliance between the State and the press over the policies of "Chilenisation" to create and encourage nationalist sentiment after the War of the Pacific. In this sense, the report's strategic intention in La Unión consisted in replicating a preconceived and stereotypical general idea that held that it was convenient for the occupied territories still in dispute to continue under Chilean rule since the country was better suited to bringing progress and modernization. These interests had become essential for Valparaíso's elite, the audience at which the newspaper was aiming in particular.
ResumenLa obra más conocida de Pedro Salinas (1891-1951, La voz a ti debida (1933) ha suscitado siempre gran interés por el desdoblamiento de identidades, tanto del "yo" del poeta como del "tú" de la amada. En otros trabajos se ha hablado de una búsqueda de trascendencia en el amor, pero de manera individual y narcisista, por acarrear la invención de la amada en los pensamientos del poeta. Con publicaciones de filósofos de época actual, como Erich Fromm y Byung-Chul Han, se intenta justificar que el amor que deja ver Salinas en sus versos no es narcisista sino ideal.Palabras clave: Pedro Salinas, La voz a ti debida, alteridad, Eros, amor. AbstractThe best known book of Pedro Salinas (1891-1951), The voice because of you (1933) has always raised great interest because of the splitting of identities, the poet's "I" and his beloved "you". In other essays a search of transcendence in love has been referred, but seen in an individual and narcissistic way, due to its attached invention of the beloved one in the poet's thoughts. After being supported on several publications by contemporary philosophers, as Erich Fromm or Byung-Chul Han, the love Salinas is writing about, can be proved to be ideal and not narcissistic.
Este artículo pretende mostrar una serie de temas presentes en la trilogía central de Pedro Salinas (1891-1951), mayormente en La voz a ti debida (1933), de arraigo en la tradición clásica castellana (medieval y renacentista), pero también en sus Cartas a Katherine Whitmore (1932-1947). Se incide en la importancia de la tradición literaria española para Salinas y su resonancia en la moralidad universal, de acuerdo con Juan Marichal en su ensayo «Pedro Salinas y los valores humanos de la literatura hispánica».
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