Results 21 to 30 of about 2,640,523 (250)

Distributed Support Vector Ordinal Regression over Networks

open access: yesEntropy, 2022
Ordinal regression methods are widely used to predict the ordered labels of data, among which support vector ordinal regression (SVOR) methods are popular because of their good generalization.
Huan Liu, Jiankai Tu, Chunguang Li
doaj   +1 more source

Statistical Analysis of Ordinal Response Variable: A Comparative Study [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2022
Response variables in biological phenomena vary between three types: numerical response variables, ordinal categorical response variables, and nominal categorical response variables. In statistical studies, handling ordinal variables varies in accordance
Liqaa Alhamdany, Zaid Tariq Salah
doaj   +1 more source

The Comparison between Ordinal Logistic Regression and Random Forest Ordinal in Identifying the Factors Causing Diabetes Mellitus

open access: yesJambura Journal of Mathematics, 2023
Diabetes is one of the high-risk diseases. The most prominent symptom of this disease is high blood sugar levels. People with diabetes in Indonesia can reach 30 million people.
Assyifa Lala Pratiwi Hamid   +4 more
doaj   +1 more source

Active Learning for Imbalanced Ordinal Regression

open access: yesIEEE Access, 2020
Ordinal regression (OR), also called ordinal classification, is a special multi-classification designed for problems with ordered classes. Imbalanced data hinders the performance of classification algorithms, especially for OR algorithms, as imbalanced ...
Jiaming Ge   +4 more
doaj   +1 more source

Companion Losses for Ordinal Regression

open access: yes, 2022
The authors acknowledge nancial support from the European Regional Develop- ment Fund and the Spanish State Research Agency of the Ministry of Economy, Industry, and Competitiveness under the project PID2019-106827GB-I00. They also thank the UAM{ADIC Chair for Data Science and Machine Learning and gratefully acknowledge the use of the facilities of ...
David Díaz-Vico   +2 more
openaire   +2 more sources

Prediction of the Fundus Tessellation Severity With Machine Learning Methods

open access: yesFrontiers in Medicine, 2022
PurposeTo predict the fundus tessellation (FT) severity with machine learning methods.MethodsA population-based cross-sectional study with 3,468 individuals (mean age of 64.6 ± 9.8 years) based on Beijing Eye Study 2011.
Lei Shao   +11 more
doaj   +1 more source

Penalized Regression with Ordinal Predictors [PDF]

open access: yes, 2008
Ordered categorial predictors are a common case in regression modeling. In contrast to the case of ordinal response variables, ordinal predictors have been largely neglected in the literature. In this article penalized regression techniques are proposed.
Gertheiss, Jan, Tutz, Gerhard
core   +1 more source

Smoothing in Ordinal Regression: An Application to Sensory Data

open access: yesStats, 2021
The so-called proportional odds assumption is popular in cumulative, ordinal regression. In practice, however, such an assumption is sometimes too restrictive.
Ejike R. Ugba   +2 more
doaj   +1 more source

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

Selection of Ordinally Scaled Independent Variables [PDF]

open access: yes, 2009
Ordinal categorial variables are a common case in regression modeling. Although the case of ordinal response variables has been well investigated, less work has been done concerning ordinal predictors.
Gertheiss, Jan   +3 more
core   +1 more source

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