A greedy regression algorithm with coarse weights offers novel advantages.
A greedy regression algorithm with coarse weights offers novel advantages.
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DOI:
10.1038/s41598-022-09415-2
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发表时间:
2022-03-31
影响因子:
4.6
通讯作者:
Wilhelmsen KC
中科院分区:
文献类型:
--
作者:
Jeffries CD;Ford JR;Tilson JL;Perkins DO;Bost DM;Filer DL;Wilhelmsen KC
Regularized regression analysis is a mature analytic approach to identify weighted sums of variables predicting outcomes. We present a novel Coarse Approximation Linear Function (CALF) to frugally select important predictors and build simple but powerful predictive models. CALF is a linear regression strategy applied to normalized data that uses nonzero weights + 1 or − 1. Qualitative (linearly invariant) metrics to be optimized can be (for binary response) Welch (Student) t-test p-value or area under curve (AUC) of receiver operating characteristic, or (for real response) Pearson correlation. Predictor weighting is critically important when developing risk prediction models. While counterintuitive, it is a fact that qualitative metrics can favor CALF with ± 1 weights over algorithms producing real number weights. Moreover, while regression methods may be expected to change most or all weight values upon even small changes in input data (e.g., discarding a single subject of hundreds) CALF weights generally do not so change. Similarly, some regression methods applied to collinear or nearly collinear variables yield unpredictable magnitude or the direction (in p-space) of the weights as a vector. In contrast, with CALF if some predictors are linearly dependent or nearly so, CALF simply chooses at most one (the most informative, if any) and ignores the others, thus avoiding the inclusion of two or more collinear variables in the model.
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影响因子:
4.5
作者:
Perkins DO;Jeffries CD;Cornblatt BA;Woods SW;Addington J;Bearden CE;Cadenhead KS;Cannon TD;Heinssen R;Mathalon DH;Seidman LJ;Tsuang MT;Walker EF;McGlashan TH
通讯作者:
McGlashan TH
影响因子:
6.6
作者:
Woods, Scott W.;Addington, Jean;McGlashan, Thomas H.
通讯作者:
McGlashan, Thomas H.
DOI:
10.1016/j.scog.2017.10.001
发表时间:
2018-03
期刊:
Schizophrenia research. Cognition
影响因子:
--
作者:
Ramsay IS;Ma S;Fisher M;Loewy RL;Ragland JD;Niendam T;Carter CS;Vinogradov S
通讯作者:
Vinogradov S
影响因子:
3.7
作者:
Salvador R;Radua J;Canales-Rodríguez EJ;Solanes A;Sarró S;Goikolea JM;Valiente A;Monté GC;Natividad MDC;Guerrero-Pedraza A;Moro N;Fernández-Corcuera P;Amann BL;Maristany T;Vieta E;McKenna PJ;Pomarol-Clotet E
通讯作者:
Pomarol-Clotet E
DOI:
10.1016/j.bbalip.2013.01.002
发表时间:
2013-04
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Lord CC;Thomas G;Brown JM
通讯作者:
Brown JM