نتایج جستجو برای: sample prediction

تعداد نتایج: 650561  

2014
Nicholas A. Nechval Konstantin N. Nechval Vadim Danovich Gundars Berzins

This paper provides procedures for constructing prediction limits on order statistics of future samples using the results of a previous sample from the same underlying inverse Gaussian distribution. Prediction limits are obtained from a point of view of frequentist approach. Bayesian methods are not considered here. The results have direct application in reliability theory, where the time until...

Journal: :تحقیقات اقتصادی 0
حسن خداویسی استادیار گروه اقتصاد دانشکده ی اقتصاد و مدیریت دانشگاه ارومیه احمد ملابهرامی کارشناس ارشد اقتصاد دانشگاه ارومیه

exchange rate prediction, as one of the main variables in macroeconomics, has been one of the aims of the economic research for a long time. for modeling and predicting exchange rate we apply stochastic differential equation, specifically we use geometric brownian motion (gbm) and jump-diffusion process (mjdp) attributed to merton. we show that the result of simulation based on gbm and mjdp out...

Journal: :American journal of human genetics 2015
Robert Maier Gerhard Moser Guo-Bo Chen Stephan Ripke William Coryell James B Potash William A Scheftner Jianxin Shi Myrna M Weissman Christina M Hultman Mikael Landén Douglas F Levinson Kenneth S Kendler Jordan W Smoller Naomi R Wray S Hong Lee

Genetic risk prediction has several potential applications in medical research and clinical practice and could be used, for example, to stratify a heterogeneous population of patients by their predicted genetic risk. However, for polygenic traits, such as psychiatric disorders, the accuracy of risk prediction is low. Here we use a multivariate linear mixed model and apply multi-trait genomic be...

2001
Nan Song Dong Qian Jian Cao Wing Kam Liu Shaofan Li

A study on the prediction of springback angle is presented, with focus on the straight flanging operation. The objective is to evaluate the reliability of different ways of prediction. An experiment of straight flanging operation is conducted. Major prediction approaches such as analytical model, numerical simulation using Finite Element Method (FEM) and Meshfree Method are discussed. A set of ...

2013
Nicholas A. Nechval Konstantin N. Nechval Gundars Berzins

This paper provides procedures for constructing unbiased simultaneous prediction limits on the observations or functions of observations of all of k future samples using the results of a previous sample from the same underlying distribution belonging to invariant family. The results have direct application in reliability theory, where the time until the first failure in a group of several items...

  This study examines a multi-objective fuzzy simplex-genetic algorithm which was developed to predict bank legal customers financial performance. Prediction performance of the model was examined based on its ability to accurately identify credit default. Using available data from KESHVARZI bank over 2001-2006, debt ratio, operational ratio, and return on equity are selected as descriptive vari...

Journal: :Psychological science 2000
P E Downing

The relationship between working memory and selective attention has traditionally been discussed as operating in one direction: Attention filters incoming information, allowing only relevant information into short-term processing stores. This study tested the prediction that the contents of visual working memory also influence the guidance of selective attention. Participants held a sample obje...

2006
Ayan Banerjee Kanad Basu Aruna Chakraborty

Prediction of EEG signal from past samples is needed for early diagnosis of patients, suffering from frequent epileptic seizure and/or psychotherapeutic treatment of psychiatric patients. This paper compares the performance of various digital filter algorithms to identify the right candidate for application in EEG prediction. The study includes variation of filter order and past sample size, an...

2013
Maciej Szmit Anna Szmit Marcin Kuzia

Prediction of future time series values is area of statistics and computer science research related to pattern recognition. Especially possibility of prediction of the future computer network traffic may be usable in detection of abnormal situations like DoS attacks or occurrence of problems with network infrastructure. The article is devoted to usage artificial neural networks, with radial bas...

Journal: :Brain : a journal of neurology 2015
Valentina Escott-Price Rebecca Sims Christian Bannister Denise Harold Maria Vronskaya Elisa Majounie Nandini Badarinarayan Kevin Morgan Peter Passmore Clive Holmes John Powell Carol Brayne Michael Gill Simon Mead Alison Goate Carlos Cruchaga Jean-Charles Lambert Cornelia van Duijn Wolfgang Maier Alfredo Ramirez Peter Holmans Lesley Jones John Hardy Sudha Seshadri Gerard D Schellenberg Philippe Amouyel Julie Williams

The identification of subjects at high risk for Alzheimer's disease is important for prognosis and early intervention. We investigated the polygenic architecture of Alzheimer's disease and the accuracy of Alzheimer's disease prediction models, including and excluding the polygenic component in the model. This study used genotype data from the powerful dataset comprising 17 008 cases and 37 154 ...

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