نتایج جستجو برای: probability control limits

تعداد نتایج: 1631351  

2011
Hanns Holger Rutz

We are analysing the implications of music composition through programming, in particular the possibilities and limitations of tracing the composition process through computer artefacts. The analysis is attached to the case study of a sound installation. This work was realised using a new programming system which is briefly introduced. Through these observations we are probing and adjusting a m...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده ریاضی 1390

the main objective in sampling is to select a sample from a population in order to estimate some unknown population parameter, usually a total or a mean of some interesting variable. a simple way to take a sample of size n is to let all the possible samples have the same probability of being selected. this is called simple random sampling and then all units have the same probability of being ch...

Introduction: The ultimate goal of radiation treatment planning is to yield a high tumor control probability (TCP) with a low normal tissue complication probability (NTCP). Historically  dose volume histogram (DVH) with only volumetric dose distribution was utilized as a popular tool for plan evaluation  hence present study aimed to compare the radiobiological effectiveness of the cobalt-60 (Co...

Journal: :BMJ quality & safety 2011
Jenny Neuburger David A Cromwell Andrew Hutchings Nick Black Jan H van der Meulen

BACKGROUND Patient-reported outcome measures (PROMs) often produce skewed distributions of individual scores after a healthcare intervention. For health performance indicators derived from skewed distributions, funnel plots designed with symmetric control limits may increase the risk of false alarms about poor performance. AIM To investigate the accuracy of funnel plots with symmetric control...

Journal: :Operations Research 2008
Domenico Cuoco Hua He Sergei Isaenko

Value at Risk (VaR) has emerged in recent years as a standard tool to measure and control the risk of trading portfolios. Yet, existing theoretical analyses of the optimal behavior of a trader subject to VaR limits have produced a negative view of VaR as a risk-control tool. In particular, VaR limits have been found to induce increased risk exposure in some states and an increased probability o...

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