Results 11 to 20 of about 1,038,727 (324)

Improved random forest algorithms for increasing the accuracy of forest aboveground biomass estimation using Sentinel-2 imagery

open access: yesEcological Indicators
A simpler, unbiased, and comprehensive random forest (RF) model is needed to improve the accuracy of aboveground biomass (AGB) estimation. In this study, data were obtained from 128 sample plots of Pinus yunnanensis forest located in Chuxiong prefecture,
Xiaoli Zhang   +11 more
doaj   +3 more sources

Sentiment Analysis With Sarcasm Detection On Politician’s Instagram

open access: yesIJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2021
Sarcasm is one of the problem that affect the result of sentiment analysis. According to Maynard and Greenwood (2014), performance of sentiment analysis can be improved when sarcasm also identified. Some research used Naïve Bayes and Random Forest method
Aisyah Muhaddisi   +2 more
doaj   +1 more source

Double Cost Sensitive Random Forest Algorithm

open access: yesJournal of Harbin University of Science and Technology, 2021
A Double Cost Sensitive Random Forest (DCS-RF) algorithm is proposed to solve the problem that the accuracy of a few classes is not ideal when the classifier identifies unbalanced data.
ZHOU Yan-long, SUN Guang-lu
doaj   +1 more source

Corporate Distress Prediction Using Random Forest and Tree Net for India [PDF]

open access: yes, 2020
The paper deals with the Random Forest, a popular classification machine learning algorithm to predict bankruptcy (distress) for Indian firms. Random Forest orders firms according to their propensity to default or their likelihood to become distressed ...
Gupta, Sanjeev   +3 more
core   +1 more source

Random Forest Spatial Interpolation

open access: yesRemote Sensing, 2020
For many decades, kriging and deterministic interpolation techniques, such as inverse distance weighting and nearest neighbour interpolation, have been the most popular spatial interpolation techniques.
Aleksandar Sekulić   +4 more
doaj   +1 more source

A Novel Consistent Random Forest Framework: Bernoulli Random Forests [PDF]

open access: yesIEEE Transactions on Neural Networks and Learning Systems, 2018
Random forests (RFs) are recognized as one type of ensemble learning method and are effective for the most classification and regression tasks. Despite their impressive empirical performance, the theory of RFs has yet been fully proved. Several theoretically guaranteed RF variants have been presented, but their poor practical performance has been ...
Yisen Wang   +4 more
openaire   +2 more sources

Feature-Weighting and Clustering Random Forest

open access: yesInternational Journal of Computational Intelligence Systems, 2020
Classical random forest (RF) is suitable for the classification and regression tasks of high-dimensional data. However, the performance of RF may be not satisfied in case of few features, because univariate split method cannot bring more diverse ...
Zhenyu Liu   +3 more
doaj   +1 more source

Portfolio Selection Using Random Forest Algorithm

open access: yesInternational Journal of Computer Engineering and Data Science, 2022
Portfolio selection has long been a main topic in finance.  What stocks should one invest in? How much should one allocate to each stock to maximize gain and minimize risk?
Daname KOLANI
doaj   +4 more sources

RFDCR:Automated brain lesion segmentation using cascaded random forests with dense conditional random fields [PDF]

open access: yes, 2020
Segmentation of brain lesions from magnetic resonance images (MRI) is an important step for disease diagnosis, surgical planning, radiotherapy and chemotherapy.
Chen, Gaoxiang   +5 more
core   +2 more sources

Random forest for gene selection and microarray data classification [PDF]

open access: yes, 2011
A random forest method has been selected to perform both gene selection and classification of the microarray data. The goal of this research is to develop and improve the random forest gene selection method.
Moorthy, Kohbalan   +1 more
core   +2 more sources

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