نتایج جستجو برای: prediction error

تعداد نتایج: 487724  

2010
Frédéric Vanderhaegen Mirella Cassani Pietro Carlo Cacciabue

this paper proposes a new approach for assessing the efficiency of barriers and of barrier removals. Facing defences in depth organized by physical barriers implemented on the human-machine system or by immaterial barriers such as procedures to be applied, barrier removal is an intentional human error and consists in not respecting the existing barriers of the human-machine system. An approach ...

Journal: :مدیریت صنعتی 0
محمدرضا نیک بخت دانشگاه تهران مریم شریفی دانشگاه تهران

the main purpose of this paper is prediction of tse corporate financial bankruptcy using artificial neural networks. the mean values of key ratios reported in past bankruptcy studies were selected for neural network inputs (working capital to total assets, net income to total assets, total debt to total assets, current assets to current liabilities, quick assets to current liabilities). the neu...

2015
Keehoon Kim

5 L INTRODUCTION 6 2. ARTinCIAL NEURAL NETV/ORKS 8 2.L ANN Models 8 2.2. Introduction to Artificial Neural Networks 8 3. ERROR PREDICTION ON A GENERALIZER 13 3.1. Stacked Generalization 13 3.2. Error Prediction with Cross Validation Partition Criterion (CVPC) 14 3.3. Error Prediction with Bootstrap Partition Criterion (BPC) 17 3.4. Error Prediction with Modified Bootstrap Partition Criterion (M...

Journal: :journal of advances in computer research 2015
mohammad reza mosavi hodeis nabavi

this paper presents an accurate differential global positioning system (dgps) using multi-layered neural networks (nns) based on the back propagation (bp) and imperialistic competition algorithm (ica) in order to predict the dgps corrections for accurate positioning. simulation results allowed us to optimize the nn performance in term of residual mean square error. we compare results obtained b...

2000
WenThong Chang WenJen Ho

Adaptive interpolation with double-interpolator is used for image coding. The double-interpolator means that two adaptive prediction stages are used. The outer ioop is an adaptive FIRpredictor. The inner ioop is an texture based bias estimation. The bias means a content dependent estimated prediction error. By assuming the signals to consist of polynomials of various degrees, the predictor of t...

2005
DAVID AFSHARTOUS JAN DE LEEUW

We present a decomposition of prediction error for the multilevel model in the context of predicting a future observable y∗j in the jth group of a hierarchical dataset. The multilevel prediction rule is used for prediction and the components of prediction error are estimated via a simulation study that spans the various combinations of level-1 (individual) and level-2 (group) sample sizes and d...

2004
Peter C Chu Leonid M Ivanov

1 Abstract Prediction of atmospheric phenomena needs three components: a theoretical (or numerical) model based on the natural laws (physical, chemical, or biological), a sampling set of the reality, and a tolerance level. Comparison between the predicted and sampled values leads to the estimation of model error. In the error phase space, the prediction error is treated as a point; and the tole...

Journal: :desert 2014
mohammadali zare chahouki asghar zare chahouki arash malekian reza bagheri fahraji s.a. vesali

rainfall is considered a highly valuable climatologic resource, particularly in arid regions. as one of the primaryinputs that drive watershed dynamics, rainfall has been shown to be crucial for accurate distributed hydrologicmodeling. precipitation is known only at certain locations; interpolation procedures are needed to predict this variablein other regions. in this study, the ordinary cokri...

Introduction: The metastasis of breast cancer, the spread of cancer to different body parts, is considered as one of the most important factors responsible for the majority of deaths caused by breast cancer in women. Diagnosing the breast cancer metastasis at the earliest stages helps to choose the best treatment and improve the quality of life for patients. Method: In the present fundamental r...

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