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Model-free prediction and regression...

Politis, Dimitris N.

Model-free prediction and regressiona transformation-based approach to inference /

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Model-free prediction and regressionby Dimitris N. Politis.
其他題名:	a transformation-based approach to inference /
作者:	Politis, Dimitris N.
出版者:	Cham :Springer International Publishing :2015.
面頁冊數:	xvii, 246 p. :ill., digital ;24 cm.
Contained By:	Springer eBooks
標題:	Mathematical statisticsMethods.
電子資源:	http://dx.doi.org/10.1007/978-3-319-21347-7
ISBN:	9783319213477$q(electronic bk.)

Model-free prediction and regressiona transformation-based approach to inference /
Politis, Dimitris N.

Model-free prediction and regressiona transformation-based approach to inference /[electronic resource] :by Dimitris N. Politis. - Cham :Springer International Publishing :2015. - xvii, 246 p. :ill., digital ;24 cm. - Frontiers in probability and the statistical sciences. - Frontiers in probability and the statistical sciences..

Prediction: some heuristic notions -- The Model-free Prediction Principle -- Model-based prediction in regression -- Model-free prediction in regression -- Model-free vs. model-based confidence intervals -- Linear time series and optimal linear prediction -- Model-based prediction in autoregression -- Model-free inference for Markov processes -- Predictive inference for locally stationary time series -- Model-free vs. model-based volatility prediction.

The Model-Free Prediction Principle expounded upon in this monograph is based on the simple notion of transforming a complex dataset to one that is easier to work with, e.g., i.i.d. or Gaussian. As such, it restores the emphasis on observable quantities, i.e., current and future data, as opposed to unobservable model parameters and estimates thereof, and yields optimal predictors in diverse settings such as regression and time series. Furthermore, the Model-Free Bootstrap takes us beyond point prediction in order to construct frequentist prediction intervals without resort to unrealistic assumptions such as normality. Prediction has been traditionally approached via a model-based paradigm, i.e., (a) fit a model to the data at hand, and (b) use the fitted model to extrapolate/predict future data. Due to both mathematical and computational constraints, 20th century statistical practice focused mostly on parametric models. Fortunately, with the advent of widely accessible powerful computing in the late 1970s, computer-intensive methods such as the bootstrap and cross-validation freed practitioners from the limitations of parametric models, and paved the way towards the `big data' era of the 21st century. Nonetheless, there is a further step one may take, i.e., going beyond even nonparametric models; this is where the Model-Free Prediction Principle is useful. Interestingly, being able to predict a response variable Y associated with a regressor variable X taking on any possible value seems to inadvertently also achieve the main goal of modeling, i.e., trying to describe how Y depends on X. Hence, as prediction can be treated as a by-product of model-fitting, key estimation problems can be addressed as a by-product of being able to perform prediction. In other words, a practitioner can use Model-Free Prediction ideas in order to additionally obtain point estimates and confidence intervals for relevant parameters leading to an alternative, transformation-based approach to statistical inference.

ISBN: 9783319213477$q(electronic bk.)

Standard No.: 10.1007/978-3-319-21347-7doiSubjects--Topical Terms:

731735
Mathematical statistics
--Methods.

LC Class. No.: QA276.25

Dewey Class. No.: 519.50212

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