Results 11 to 20 of about 1,393,828 (262)

Use and misuse of random forest variable importance metrics in medicine: demonstrations through incident stroke prediction [PDF]

open access: yesBMC Medical Research Methodology, 2023
Background Machine learning tools such as random forests provide important opportunities for modeling large, complex modern data generated in medicine.
Meredith L. Wallace   +8 more
doaj   +2 more sources

Variable importance-weighted Random Forests. [PDF]

open access: yesQuant Biol, 2017
BackgroundRandom Forests is a popular classification and regression method that has proven powerful for various prediction problems in biological studies. However, its performance often deteriorates when the number of features increases. To address this limitation, feature elimination Random Forests was proposed that only uses features with the largest
Liu Y, Zhao H.
europepmc   +4 more sources

Variable Importance Measures Suggest Paramount Influence of Human Economics on Alien‐Species Introductions [PDF]

open access: yesEcology and Evolution
Identifying the most important variables that determine patterns and processes is one of the main goals in many scientific fields, including ecological and evolutionary studies.
Ignasi Arranz   +2 more
doaj   +2 more sources

Variable importance and prediction methods for longitudinal problems with missing variables. [PDF]

open access: yesPLoS One, 2015
We present prediction and variable importance (VIM) methods for longitudinal data sets containing continuous and binary exposures subject to missingness. We demonstrate the use of these methods for prognosis of medical outcomes of severe trauma patients, a field in which current medical practice involves rules of thumb and scoring methods that only use
Díaz I, Hubbard A, Decker A, Cohen M.
europepmc   +7 more sources

Variable Importance Scores [PDF]

open access: yesJournal of Data Science, 2021
29 pages, 13 ...
Wei-Yin Loh, Peigen Zhou
openaire   +2 more sources

Partial dependence through stratification

open access: yesMachine Learning with Applications, 2021
Partial dependence curves (FPD) are commonly used to explain feature importance once a supervised learning model has been fitted to data. However, it is common for the same partial dependence algorithm to give meaningfully different curves for different ...
Terence Parr, James D. Wilson
doaj   +1 more source

Decorrelated Variable Importance

open access: yesJ. Mach. Learn. Res., 2021
Because of the widespread use of black box prediction methods such as random forests and neural nets, there is renewed interest in developing methods for quantifying variable importance as part of the broader goal of interpretable prediction. A popular approach is to define a variable importance parameter - known as LOCO (Leave Out COvariates) - based ...
Isabella Verdinelli, Larry A. Wasserman
openaire   +3 more sources

Analyzing Impact of Types of UAV-Derived Images on the Object-Based Classification of Land Cover in an Urban Area

open access: yesDrones, 2022
The development of UAV sensors has made it possible to obtain a diverse array of spectral images in a single flight. In this study, high-resolution UAV-derived images of urban areas were employed to create land cover maps, including car-road, sidewalk ...
Geonung Park   +3 more
doaj   +1 more source

Evaluation of Odor Prediction Model Performance and Variable Importance according to Various Missing Imputation Methods

open access: yesApplied Sciences, 2022
The aim of this study is to ascertain the most suitable model for predicting complex odors using odor substance data that has a small number of data and a large number of missing data.
Do-Hyun Lee   +3 more
doaj   +1 more source

Understanding the spatial non-stationarity in the relationships between malaria incidence and environmental risk factors using Geographically Weighted Random Forest: A case study in Rwanda.

open access: yesGeospatial Health, 2023
As found in the health studies literature, the levels of climate association between epidemiological diseases have been found to vary across regions.
Gilbert Nduwayezu   +6 more
doaj   +1 more source

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