Search results for "Autor"
showing 10 items of 820 documents
Estimation of Granger causality through Artificial Neural Networks: applications to physiological systems and chaotic electronic oscillators
2021
One of the most challenging problems in the study of complex dynamical systems is to find the statistical interdependencies among the system components. Granger causality (GC) represents one of the most employed approaches, based on modeling the system dynamics with a linear vector autoregressive (VAR) model and on evaluating the information flow between two processes in terms of prediction error variances. In its most advanced setting, GC analysis is performed through a state-space (SS) representation of the VAR model that allows to compute both conditional and unconditional forms of GC by solving only one regression problem. While this problem is typically solved through Ordinary Least Sq…
Nuevas tendencias dramáticas en el cambio de siglo. Tres autores valencianos: Gabriel Ochoa, Xavier Puchades y Arturo Sánchez Velasco.
2016
Durante las décadas finales del siglo XX la escritura dramática española experimentó un importante auge, tanto en términos estrictamente cuantitativos como, sobre todo, cualitativos. Los dramaturgos surgidos durante esos años se encuentran todavía en activo y han desarrollado sólidas carreras profesionales que empiezan a ser estudiadas, tanto de forma individual como en grupo. El cambio de milenio ha influenciado a lo largo de la última década a los nuevos autores y han surgido nuevos planteamientos estéticos y nuevas formas de entender el teatro y sus relaciones con la sociedad. La tesis doctoral se aproxima a la dramaturgia valenciana de las décadas 1990 y 2000 y perfila los autores que t…
Zvaigžņotā Debess: 2016/17, Ziema (234)
2016
Contents: “ZVAIGŽŅOTĀ DEBESS” FORTY YEARS AGO: A.Balklavs. New Possibilities in Search of Cosmic Gravitational Waves (abridged) ; E.Mūkins. «Venus-9» and «Venus-10» Scientific Accomplishment (abridged) ; DEVELOPMENTS in SCIENCE: K.Schwartz. The Unknown Solar Corona ; DISCOVERIES: I.Pundure. Gaia Has Obtained Billion-Star 3D Map ; SPACE RESEARCH and EXPLORATION: J.Jaunbergs. Tar Lakes of Titan ; R.Misa. A Step Closer to Stars ; CONFERENCES and MEETINGS: J.Balodis. Copernicus Is Becoming an Impressive Business ; K.Bērziņš. Conference of Young European Radioastronomers at the Latvian Centre in Germany ; FLASHBACK: A.Alksnis. Short Trips and Faraway Journeys (concluded) ; For SCHOOL YOUTH: D.Bo…
Improving spatial temperature estimates by resort to time autoregressive processes
2012
Temperature estimation methods usually involve regression followed by kriging of residuals (residual kriging). Despite the performance of such models, there is invariably a residual which is not necessarily unpredictable because it may still be correlated in time. We set out to analyse such residuals through resort to autoregressive processes. It is shown that the optimal period varies depending on whether it is identified by functions of the form resd = f(resd−1, resd−2, ..., resd−p) or by partial correlations. Autoregressive processes significantly improve estimates, which are evaluated by cross-validations. Finally, the two following points are discussed: (1) the assumptions of the autor…
Autortiesību administrēšana
2016
Diplomdarbs "Autortiesību administrēšana" ir izstrādāts ar mērķi identificēt Latvijas likumdošanas un autortiesību administrēšanas organizācijas spēju pasargāt (literāro, muzikālo, horeogrāfisko u.t.t.) darbu autoru tiesības pasaulē un lokāli, īpaši pievēršoties mūzikas nozarei, un izstrādāt priekšlikumus turpmākai attīstībai autortiesību administrēšanas procesā. Autortiesību administrēšana ir jautājums, kas uztrauc daudzus darba autorus, it īpaši tos, kuru darbi tiek izplatīti arī ārpus Larvijas. Precīza un efektīva datu vākšana un apstrāde no citu valstu darbu izmantotājiem ir būtiska darbu autoriem un Latvijas mūzikas industrijas attīstībai kā tādai. Diplomdarbā ir apskatīti autortiesību…
Analysis of the authors’ rights collection frontier using PCA-MDEA: an application to the Valencia region
2002
The aim of this paper is to estimate the authors’ rights collection frontier within the collection zones into which the Valencia Region (Spain) has been divided. To be more exact, a nonparametric frontier technique (Modified Data Envelopment Analysis, MDEA) and the Principal Components Analysis (PCA) are jointly employed to map out an initial approach to the potential authors’ rights collection within this region (as divided into collection zones). The analysis has been carried out both jointly and by majority sectors (performing, musical, and audio-visual arts). Publicaciones Econcult: Área de Investigación en Economía de la Cultura y Turismo. Universitat de València
Fútbol, dinero, mafias
2002
Abitare sociale e governance territoriale: quali strumenti per la rigenerazione urbana?
2013
La questione abitativa oggi ha assunto un ruolo di notevole importanza nei processi decisionali di trasformazione urbana; nonostante la drammaticità del tema, rimane un compito molto arduo individuare una coerenza strutturale in merito alla storia delle politiche di edilizia residenziale pubblica. L’auto-recupero, l’auto-costruzione, l’alloggio condiviso sono alcune delle forme più interessanti fra le politiche e le strategie dell’alloggio sociale, poiché rappresentano delle risposte specifiche e concrete al bisogno di abitazione a buon mercato e costituiscono un valido strumento nei processi di governance territoriale.
Major International Information Flows Across the Safex Wheat Market
2016
We study information flows across four wheat futures markets on four continents: Zhengzhou Commodity Exchange (ZCE), South African Futures Exchange (SAFEX), Euronext/Liffe and Kansas City Board of Trade (KCBT). Three approaches for studying information flows among non-synchronous markets are applied: cointegration techniques, vector autoregressive analysis and multiple regression proposed. Although comparable underlying assets are traded in the four markets, our results indicate that no long-run links exist among them. ZCE is by far the most endogenous market, and Euronext/Liffe is the most exogenous one. Finally, the model points to KCBT as the most influential and sensitive wheat market. …
Stochastic differential calculus for wind-exposed structures with autoregressive continuous (ARC) filters
2008
In this paper, an alternative method to represent Gaussian stationary processes describing wind velocity fluctuations is introduced. The technique may be considered the extension to a time continuous description of the well-known discrete-time autoregressive model to generate Gaussian processes. Digital simulation of Gaussian random processes with assigned auto-correlation function is provided by means of a stochastic differential equation with time delayed terms forced by Gaussian white noise. Solution of the differential equation is a specific sample of the target Gaussian wind process, and in this paper it describes a digitally obtained record of the wind turbolence. The representation o…