Search results for "error"

La cultura del miedo

2004

MEDIACIÓN POST SENTENTIAM EN DELITOS DE TERRORISMO. DE LA RESTORATIVE JUSTICE A LA RECONSTRUCTIVE JUSTICE (Especial referencia a los encuentros entre…

2016

Spanish Abstract: En la ya larga historia del Derecho Penal se ha venido anudando la ideologia politica y la concepcion de Estado con los postulados politicos y juridicos que conformaron en el Siglo XIX el denominado Derecho Penal clasico. Desde esos postulados el Derecho Penal asumia un papel retributivo, primero, y preventivo, despues, si bien la evolucion politica, juridica y social, e incluso economica, ha modulado algunos de aquellos postulados, incorporando, desde finales del Siglo XX, algunas practicas restaurativas. Asi, aun conservando respuestas preventivas mas o menos represiva, con ciertos tintes utilitaristas de la pena, la justicia restaurativa ha ido adentrandose en la mayor …

Study of ambient light influence for three-dimensional scanners based on structured light

2007

Ambient light in a scene can introduce errors into range data from most commercial three-dimensional range scanners, particularly scanners that are based on projected patterns and structured lighting. We study the effects of ambient light on a specific commercial scanner. We further present a method for characterizing the range accuracy as a function of ambient light distortions. After a brief review of related research, we first describe the capabilities of the scanner we used and define the experimental setup for our study. Then we present the results of the range characterization relative to ambient light. In these results, we note a systematic error source that appears to be an artifact…

Deep Learning Models Performance For NDVI Time Series Prediction: A Case Study On North West Tunisia

2020

The main goal of this paper is to analyze the performance of two deep learning models Long Short-Term Memory (LSTM) and bidirectional LSTM (BiLSTM) network for non-stationary Normalized Difference Vegetation Index (NDVI) time-series prediction. Both methods have provided good performances in the different time series. The BiLSTM has shown the best agreement with the lowest root mean square error (RMSE) and the highest Pearson correlation coefficient (R) of 0.034 and 0.93, respectively.

Influence of rounding errors on the quality of heuristic optimization algorithms

2011

Abstract Search space smoothing and related heuristic optimization algorithms provide an alternative approach to simulated annealing and its variants: while simulated annealing traverses barriers in the energy landscape at finite temperatures, search space smoothing intends to remove these barriers, so that a greedy algorithm is sufficient to find the global minimum. Several formulas for smoothing the energy landscape have already been applied, one of them making use of the finite numerical precision on a computer. In this paper, we thoroughly investigate the effect of finite numerical accuracy on the quality of results achieved with heuristic optimization algorithms. We present computation…

What is the best fitting function? Evaluation of lactate curves with common methods from the literature

2015

Using the lactate threshold for training prescription is the gold-standard, although there are several open questions. One open question is: What is the best fitting method for the load-lactate data points? This investigation re-analyses over 3500 lactate diagnostic datasets in swimming. Our evaluation software examines six different fitting methods with two different minimization criteria (RMSE and SE). Optimization of parameters of the functions is put in excecution with gradient descent. From a mathematical point of view, the double phase model, which consists of two linear regression lines, shows the least errors (RMSE min 0.254 ± 0.172; SE min 0.311 ± 0.210). However, this method canno…

How Universal Is the Relationship between Remotely Sensed Vegetation Indices and Crop Leaf Area Index? A Global Assessment

2016

This study aims to assess the relationship between Leaf Area Index (LAI) and remotely sensed Vegetation Indices (VIs) for major crops, based on a globally explicit dataset of in situ LAI measurements over a significant set of locations. We used a total of 1394 LAI measurements from 29 sites spanning 4 continents and covering 15 crop types with corresponding Landsat satellite images. Best-fit functions for the LAI-VI relationships were generated and assessed in terms of crop type, vegetation index, level of radiometric/atmospheric processing, method of LAI measurement, as well as the time difference between LAI measurements and satellite overpass. These global LAI-VI relationships were evalu…

One diode circuital model of light soaking phenomena in Dye-Sensitized Solar Cells

2018

Abstract In this work, we report on the modelling of light soaking effect on Ruthenium-based Dye Sensitized Solar cells (DSSCs). Such a phenomenon can be detected when exposing the cells at increasing hours of illumination and produces a reversible performance increase. Starting from the results obtained through the electro-optical characterization of the cells, we applied a one-diode circuital-model. Our results show a good agreement between the experimental and the simulated data, with a mean square error in the order of 10−12 and a maximum error in current lower than 0.6%. Finally such results allowed us to infer some precise trends followed by the cells main electrical parameters and of…

Homomorphic Approach to RF-Inhomogeneity Removal Based on Gabor Filter

2007

In this paper a bias correction algorithm for magnetic resonance imaging (MRI) is presented. The magnetic resonance (MR) images affected by this artifact, also called RF-inhomogeneity, exhibit irregular spatial brightness variations caused by magnetic field inhomogeneity. Here we present an original algorithm based on E2D - HUM, already proposed by some of the authors, where a modified Gabor filter is introduced in the elaboration chain to provide directional capabilities to suppress the artifact. The process of restoration doesn't care about the structure of the image and it has been applied to MR images of different parts of body like knee, abdomen, pelvis and brain. A comparison with oth…

The 'terroridiom' principle between spoken and written discourse

2008

This paper focuses on phraseology used within the domain of politics, both in written and spoken discourse. We concentrate on the lemma TERROR and on the recurrent sequences in which it is embedded, reflecting how native speakers, both American and British, tend to use it in preferred environments making routinized blocks of language. The data come from two corpora: the spoken corpus includes speeches of George W. Bush and Tony Blair, and the written corpus is made up of articles from The Wall Street Journal and The Economist. Since text is nothing but phraseology of one kind or another (Sinclair 2008), our attempt here is to uncover which of the two varieties lends itself more willingly to…