Revisión crítica del naturalismo. Actualización de un debate histórico

La discusión del naturalismo ha llenado páginas y páginas de libros y ensayos publicados en España desde 1880. En este ensayo se describe la evolución de este debate crítico en los últimos decenios, llamando la atención sobre puntos tales como la preocupación por los aspectos formales, la creciente toma de conciencia y un acuerdo acerca de la discrepancia entre los preceptos y prácticas naturalistas, y el origen de la noción de un "hipotexto romántico".Discussion of Naturalism has filled pages and pages of books and essays published in Spain since 1880. This essay traces the evolution of this critical debate over the last few decades, drawing attention to points such as the concern over formal aspects, the growing awareness of and agreement about the discrepancy between Naturalistic precepts and practice, and the origin of the notion of a “Romantic hypotext”.notPeerReviewe

Critical reception of Umbral in the histories of the novel

Me propongo rastrear el tratamiento de la obra de Francisco Umbral en uno de los ámbitos de la crítica literaria que considero especialmente relevante: el de las historias de la literatura y, específicamente en este caso, el género novela. De su presencia o ausencia en ellas ha dependido en buena medida el prestigio de un escritor. Siguiendo un criterio cronológico, analizaré los comentarios merecidos por Umbral desde finales de los años sesenta, cuando se dio a conocer como novelista, hasta el día de hoy. De manera tangencial, citaré textos de otro tipo que resulten útiles para seguir las huellas del interés que por la obra de Umbral ha ido mostrando la crítica especializadaI intend to trace the treatment of the work of Francisco Umbral in one of the areas of literary criticism that I consider especially outstanding: those of literature histories, and, specifically in this case, the genre novel. Of their presence or absence in them has broadly depended on the prestige of a writer. Following a purely chronological criterion, I will analyze the commentaries deserved by Umbral from the end of the sixties, when he began to be known as a novelist, to the present day. In a tangential way, I will cite texts of another kind that are useful to follow the footprints of interest that has been shown by specialised critics in the work of Umbra

The sensitivity of estimated DSGE models to alternative data vintages

Master in Economics: Empirical Applications and Policies. Academic Year: 2019-2020This paper considers the estimation of a structural DSGE model with three alternative macroeconomic data vintages corresponding to the first-release (real-time data), the third-release data, and the highly revised data to assess the sensitivity of the estimation arising from the data revision process. The empirical evidence based on a structural econometric approach suggests that some structural and shock process parameters are only identified whenever highly revised data become available. More generally, several parameters are highly sensitive to data vintage in the estimation procedure. Data revisions also affect the estimated properties of the economic agents’ expectations that determine their decisions. Its empirical validation is assessed through the corresponding observable counterparts reported in the Survey of Professional Forecasters

Reusing cached schedules in an out-of-order processor with in-order issue logic

Modern processors use out-of-order processing logic to achieve high performance in Instructions Per Cycle (IPC) but this logic has a serious impact on the achievable frequency. In order to get better performance out of smaller transistors there is a trend to increase the number of cores per die instead of making the cores themselves bigger. Moreover, for throughput-oriented and server workloads, simpler in-order processors that allow more cores per die and higher design frequencies are becoming the preferred choice. Unfortunately, for other workloads this type of cores result in a lower single thread performance. There are many workloads where it is still important to achieve good single thread performance. In this thesis we present the ReLaSch processor. Its aim is to enable high IPC cores capable of running at high clock frequencies by processing the instructions using simple superscalar in-order issue logic and caching instruction groups that are dynamically scheduled in hardware after commit, that is, out of the critical path and only when really needed. Objective This thesis has several research goals: • Show that the dynamic scheduler of a conventional out-of-order processor does a lot of redundant work because it ignores the repetitiveness of code. • Propose a complete superscalar out-of-order architecture that reduces the amount of redundant work done by creating the schedules once in dedicated hardware, storing them in a cache of schedules and reusing the schedules as much as possible. • Place the scheduler out of the critical path of execution, which should be enabled by the reduction of work that it must do. Thus, the execution path of our proposed processor can be simpler than that of a conventional out-of-order processor. Proposal and results We present the \textbf{ReLaSch} processor, named after Reused Late Schedules, in which the creation of issue-groups is removed from the critical path of execution and uses a simple and small in-order issue logic. It just wakes-up and selects the instructions of a single issue-group each cycle, instead of processing the instructions of a whole issue queue. A new logic at the end of the conventional pipeline schedules the committed instructions. The new scheduler can be complex since it is not in the critical path of execution. The schedules are cached and whenever it is possible an rgroup is read and its instructions executed. The schedules are reused, lowering the pressure on the scheduling logic. In some cases, the ReLaSch processor is able to outperform a conventional out-of-order processor, because the post-commit scheduler has a broader vision of the code. For instance, while ReLaSch can schedule together two independent instructions that are distant in the code, a conventional out-oforder processor only issues them in the same cycle if both are in-flight. The ReLaSch processor predicts the branch targets, memory aliases and latencies at scheduling time, out of the critical path. The prediction is based on the most recent executions at scheduling time. Furthermore, most of the register renaming process is performed by the scheduler and is removed from the execution pipeline. Our experiments show that ReLaSch has the same average IPC as our reference out-of-order processor and is clearly better than the reference inorder processor (1.55 speed-up). In all cases it outperforms the in-order processor and in 23 benchmarks out of 40 it has a higher IPC than the reference out-of-order processor

Heart rate variability : a fractal analysis

Tese de mestrado. Engenharia Biomédica. Faculdade de Engenharia. Universidade do Porto. 200

The sensitivity of estimated DSGE models to alternative data vintages

Master in Economics: Empirical Applications and Policies. Academic Year: 2019-2020This paper considers the estimation of a structural DSGE model with three alternative macroeconomic data vintages corresponding to the first-release (real-time data), the third-release data, and the highly revised data to assess the sensitivity of the estimation arising from the data revision process. The empirical evidence based on a structural econometric approach suggests that some structural and shock process parameters are only identified whenever highly revised data become available. More generally, several parameters are highly sensitive to data vintage in the estimation procedure. Data revisions also affect the estimated properties of the economic agents’ expectations that determine their decisions. Its empirical validation is assessed through the corresponding observable counterparts reported in the Survey of Professional Forecasters

Soft computing and non-parametric techniques for effective video surveillance systems

Esta tesis propone varios objetivos interconectados para el diseño de un sistema de vídeovigilancia cuyo funcionamiento es pensado para un amplio rango de condiciones. Primeramente se propone una métrica de evaluación del detector y sistema de seguimiento basada en una mínima referencia. Dicha técnica es una respuesta a la demanda de ajuste de forma rápida y fácil del sistema adecuándose a distintos entornos. También se propone una técnica de optimización basada en Estrategias Evolutivas y la combinación de funciones de idoneidad en varios pasos. El objetivo es obtener los parámetros de ajuste del detector y el sistema de seguimiento adecuados para el mejor funcionamiento en una amplia gama de situaciones posibles Finalmente, se propone la construcción de un clasificador basado en técnicas no paramétricas que pudieran modelar la distribución de datos de entrada independientemente de la fuente de generación de dichos datos. Se escogen actividades detectables a corto plazo que siguen un patrón de tiempo que puede ser fácilmente modelado mediante HMMs. La propuesta consiste en una modificación del algoritmo de Baum-Welch con el fin de modelar las probabilidades de emisión del HMM mediante una técnica no paramétrica basada en estimación de densidad con kernels (KDE). _____________________________________This thesis proposes several interconnected objectives for the design of a video-monitoring system whose operation is thought for a wide rank of conditions. Firstly an evaluation technique of the detector and tracking system is proposed and it is based on a minimum reference or ground-truth. This technique is an answer to the demand of fast and easy adjustment of the system adapting itself to different contexts. Also, this thesis proposes a technique of optimization based on Evolutionary Strategies and the combination of fitness functions. The objective is to obtain the parameters of adjustment of the detector and tracking system for the best operation in an ample range of possible situations. Finally, it is proposed the generation of a classifier in which a non-parametric statistic technique models the distribution of data regardless the source generation of such data. Short term detectable activities are chosen that follow a time pattern that can easily be modeled by Hidden Markov Models (HMMs). The proposal consists in a modification of the Baum-Welch algorithm with the purpose of modeling the emission probabilities of the HMM by means of a nonparametric technique based on the density estimation with kernels (KDE)

Driving Cars by Means of Genetic Algorithms

Proceedings of: 10th International Conference on Parallel Problem Solving From Nature, PPSN 2008. Dortmund, Germany, September 13-17, 2008The techniques and the technologies supporting Automatic Vehicle Guidance are an important issue. Automobile manufacturers view automatic driving as a very interesting product with motivating key features which allow improvement of the safety of the car, reducing emission or fuel consumption or optimizing driver comfort during long journeys. Car racing is an active research field where new advances in aerodynamics, consumption and engine power are critical each season. Our proposal is to research how evolutionary computation techniques can help in this field. As a first goal we want to automatically learn to drive, by means of genetic algorithms, optimizing lap times while driving through three different circuits.Publicad

Instrumentalization of Religious Imaging by the Conservative Party during Colombian Civil War, 1859-1862, Antioquia case

Este texto hace parte de una investigación en historia de la Universidad de Antioquia, y su objetivo principal es analizarla instrumentalización del imaginario religioso de la Iglesia católica por parte del Partido Conservador en Antioquia, durante las reformas liberales de Tomás Cipriano de Mosquera (1859-1862).De este modo, se parte del análisis del discurso político de los textos producidos por el Estado colombiano, el Partido Conservador,el Partido Liberal y la Iglesia Católica, con el fin de entender su entramado retórico y definir los conceptos más importantes de dicha instrumentalización,con base en cuatro series del imaginario religioso de la Iglesia católica y sus correspondientes sentidos políticos, a saber: lareligión se transforma en el partido político,el enemigo espiritual en el enemigo político,la moral cristiana en la ideología del Partido y el providencialismo en la lucha sagrada del partido.This text is part of a research in the history of Universidad de Antioquia, and its main objective is to analyze the instrumentalization of religious imaging of the Catholic Church by the Conservative Party in Antioquia, during liberal reforms of Tomás Cipriano de Mosquera (1859-1862).In this way, this research is based on the analysis of political discourse of texts produced by Colombian government, the Conservative Party, the Liberal Party, and the catholic church in order to understand their rhetoric relation and to define the most important concepts of such instrumentalization,based on four series of the catholic church religious imaging and their corresponding political meaning, e.g. the religion is transformed in a political party,the spiritual enemy becomes a political enemy,Christian moral becomes the ideology of the Party, and provincialism becomes the sacred fight of the Part