Results 11 to 20 of about 177,424 (286)

Initial Coin Offering Prediction Comparison Using Ridge Regression, Artificial Neural Network, Random Forest Regression, and Hybrid ANN-Ridge

open access: yesMendel, 2023
Can machine learning take a prediction to win an investment in ICO (Initial Coin Offering)? In this research work, our objective is to answer this question. Four popular and lower computational demanding approaches including Ridge regression (RR),
Toai Kim Tran   +6 more
doaj   +1 more source

Correlation Based Ridge Parameters in Ridge Regression with Heteroscedastic Errors and Outliers [PDF]

open access: yesJournal of Statistical Theory and Applications (JSTA), 2015
This paper introduces some new estimators for estimating ridge parameter, based on correlation between response and regressor variables for ridge regression analysis.
A.V. Dorugade
doaj   +1 more source

Two‐level preconditioning for Ridge Regression [PDF]

open access: yesNumerical Linear Algebra with Applications, 2021
AbstractSolving linear systems is often the computational bottleneck in real‐life problems. Iterative solvers are the only option due to the complexity of direct algorithms or because the system matrix is not explicitly known. Here, we develop a two‐level preconditioner for regularized least squares linear systems involving a feature or data matrix ...
Joris Tavernier   +3 more
openaire   +2 more sources

Low-Rank Tensor Thresholding Ridge Regression

open access: yesIEEE Access, 2019
In the area of subspace clustering, methods combining self-representation and spectral clustering are predominant in recent years. For dealing with tensor data, most existing methods vectorize them into vectors and lose most of the spatial information ...
Kailing Guo   +3 more
doaj   +1 more source

Ridge Regression and the Elastic Net: How Do They Do as Finders of True Regressors and Their Coefficients?

open access: yesMathematics, 2022
For the linear model Y=Xb+error, where the number of regressors (p) exceeds the number of observations (n), the Elastic Net (EN) was proposed, in 2005, to estimate b.
Rajaram Gana
doaj   +1 more source

Suggested Methods in Ridge Regression [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2006
Three suggested procedures were adopted to determine the value of biasing parameter (k) in ridge regression: 1-fragmenting the ridge trace to groups each group contain semi-homogeneous absolute values of the estimated parameters, 2-rotating over the ...
doaj   +1 more source

Adaptive ridge regression for rare variant detection. [PDF]

open access: yesPLoS ONE, 2012
It is widely believed that both common and rare variants contribute to the risks of common diseases or complex traits and the cumulative effects of multiple rare variants can explain a significant proportion of trait variances.
Haimao Zhan, Shizhong Xu
doaj   +1 more source

Minimax Ridge Regression Estimation. [PDF]

open access: yesThe Annals of Statistics, 1977
The technique of ridge regression, first proposed by Hoerl and Kennard, has become a popular tool for data analysts faced with a high degree of multicollinearity in their data. By using a ridge estimator, one hopes to both stabilize one's estimates (lower the condition number of the design matrix) and improve upon the squared error loss of the least ...
openaire   +2 more sources

Ordinal Ridge Regression with Categorical Predictors [PDF]

open access: yes, 2011
In multi-category response models categories are often ordered. In case of ordinal response models, the usual likelihood approach becomes unstable with ill-conditioned predictor space or when the number of parameters to be estimated is large relative to ...
Zahid, Faisal Maqbool
core   +1 more source

Ridge Fuzzy Regression Modelling for Solving Multicollinearity

open access: yesMathematics, 2020
This paper proposes an α-level estimation algorithm for ridge fuzzy regression modeling, addressing the multicollinearity phenomenon in the fuzzy linear regression setting. By incorporating α-levels in the estimation procedure, we are able to construct a
Hyoshin Kim, Hye-Young Jung
doaj   +1 more source

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