penalized least squares
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Degrees of freedom (statistics) — In statistics, the number of degrees of freedom is the number of values in the final calculation of a statistic that are free to vary.[1] Estimates of statistical parameters can be based upon different amounts of information or data. The number… … Wikipedia
Linear regression — Example of simple linear regression, which has one independent variable In statistics, linear regression is an approach to modeling the relationship between a scalar variable y and one or more explanatory variables denoted X. The case of one… … Wikipedia
Smoothing spline — The smoothing spline is a method of smoothing, or fitting a smooth curve to a set of noisy observations.DefinitionLet (x i,Y i); i=1,dots,n be a sequence of observations, modeled by the relation E(Y i) = mu(x i). The smoothing spline estimate… … Wikipedia
Thin plate spline — This is a brief derivation for the closed form solutions for smoothing Thin Plate Spline . Details about these splines can be found in (Wahba, 1990).Thin plate splines (TPS) were introduced to geometric design by Duchon (Duchon, 1976). The name… … Wikipedia
Shrinkage (statistics) — In statistics, shrinkage is a general technique to improve an estimator, and to regularizeill posed inference problems. Shrinkage is implicit in Bayesian inference and penalized likelihoodinference, and explicit in James Stein type inference. In… … Wikipedia
PWLS — Pop Warner Little Scholars (Community » Non Profit Organizations) ** Penalized Weighted Least Squares (Academic & Science » Mathematics) … Abbreviations dictionary
Scrabble — For other uses, see Scrabble (disambiguation). Scrabble Current Scrabble logo by Hasbro, Inc. used in the USA and Canada, since March 2008 Former Scrabble logo by Hasbro, Inc. used in the USA and Canada, until March 2008 … Wikipedia
chess — chess1 /ches/, n. a game played by two persons, each with 16 pieces, on a chessboard. [1150 1200; ME < OF esches, pl. of eschec CHECK1] chess2 /ches/, n., pl. chess, chesses. one of the planks forming the roadway of a floating bridge. [1425 75;… … Universalium
Italy — /it l ee/, n. a republic in S Europe, comprising a peninsula S of the Alps, and Sicily, Sardinia, Elba, and other smaller islands: a kingdom 1870 1946. 57,534,088; 116,294 sq. mi. (301,200 sq. km). Cap.: Rome. Italian, Italia. * * * Italy… … Universalium
Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… … Universalium
ancient Rome — ▪ ancient state, Europe, Africa, and Asia Introduction the state centred on the city of Rome. This article discusses the period from the founding of the city and the regal period, which began in 753 BC, through the events leading to the… … Universalium
