Uncertainty analysis

Uncertainty analysis

In physical experiments uncertainty analysis - or experimental uncertainty assessment - deals with assessing the uncertainty in a measurement. An experiment aimed to determine an effect, demostrate a law, or determine the numerical value of a physical variable will be affected from errors due to instrumentation, methodology, presence of confounding effects and so on. Experimental uncertainty estimates are needed to assess the confidence in the results. [ [http://www.engineering.uiowa.edu/~cfd/pdfs/References/uncert.pdf Summary of experimental uncertainty assessment methodology with example] ] A related field is Design of experiments.

Likewise in numerical experiment and modelling uncertainty analysis draws upon a number of technique for determining the reliability of model predictions, accounting for various sources of uncertainty in model input and design. [ [http://www.floodrisknet.org.uk/methods/MethodologiesForUncertaintyAnalysis Methodologies for uncertainty analysis] ] A related field is sensitivity analysis.

References

Bibliography

*Etienne de Rocquigny, Nicolas , Devictor, Stefano, Tarantola (Editors), Uncertainty in Industrial Practice: A Guide to Quantitative Uncertainty Management, Wiley & Sons Publishers, 2008.
*J.C. Helton, J.D. Johnson, C.J. Salaberry, and C.B. Storlie, 2006, Survey of sampling based methods for uncertainty and sensitivity analysis. Reliability Engineering and System Safety, 91:1175-1209.
*Santner, T. J.; Williams, B. J.; Notz, W.I. Design and Analysis of Computer Experiments; Springer-Verlag, 2003.


Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • uncertainty analysis — neapibrėžtumo analizė statusas Aprobuotas sritis branduolinė sauga apibrėžtis Analizė, atliekama siekiant nustatyti ir apibūdinti neapibrėžtumo priežastis, įvertinti jų poveikį analizuojamų rezultatų neapibrėžtumui ir pateikti neapibrėžtumo bei… …   Lithuanian dictionary (lietuvių žodynas)

  • Uncertainty — For the film of the same name, see Uncertainty (film). Certainty series Agnosticism Belief Certainty Doubt Determinism Epistemology …   Wikipedia

  • Uncertainty quantification — (UQ) is defined as the quantitative characterization and reduction of uncertainties in applications. The “mathematics of uncertainties” used to be mistakenly identified with only the fields of finance and economics. However, many problems in the… …   Wikipedia

  • Uncertainty principle — In quantum physics, the Heisenberg uncertainty principle states that locating a particle in a small region of space makes the momentum of the particle uncertain; and conversely, that measuring the momentum of a particle precisely makes the… …   Wikipedia

  • Analysis of Competing Hypotheses — The Analysis of Competing Hypotheses (ACH) provides an unbiased methodology for evaluating multiple competing hypotheses for observed data. It was developed by Richards (Dick) J. Heuer, Jr., a 45 year veteran of the Central Intelligence Agency,… …   Wikipedia

  • Sensitivity analysis — (SA) is the study of how the variation (uncertainty) in the output of a mathematical model can be apportioned, qualitatively or quantitatively, to different sources of variation in the input of a model Saltelli, A., Ratto, M., Andres, T.,… …   Wikipedia

  • Measurement uncertainty — In metrology, measurement uncertainty is a non negative parameter characterizing the dispersion of the values attributed to a measured quantity. The uncertainty has a probabilistic basis and reflects incomplete knowledge of the quantity. All… …   Wikipedia

  • Cost-Effectiveness Analysis Registry — The Cost Effectiveness Analysis Registry was developed by the Center for the Evaluation of Value and Risk in Health at the Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, MA. The Registry contains detailed …   Wikipedia

  • Measurement systems analysis — A Measurement System Analysis (MSA) is a specially designed experiment that seeks to identify the components of variation in the measurement. Just as processes that produce a product may vary, the process of obtaining measurements and data may… …   Wikipedia

  • Cost–benefit analysis — (CBA), sometimes called benefit–cost analysis (BCA), is a systematic process for calculating and comparing benefits and costs of a project for two purposes: (1) to determine if it is a sound investment (justification/feasibility), (2) to see how… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”