Results 21 to 30 of about 360,197 (329)

Segmentation of PMSE Data Using Random Forests

open access: yesRemote Sensing, 2022
EISCAT VHF radar data are used for observing, monitoring, and understanding Earth’s upper atmosphere. This paper presents an approach to segment Polar Mesospheric Summer Echoes (PMSE) from datasets obtained from EISCAT VHF radar data. The data consist of
Dorota Jozwicki   +3 more
doaj   +1 more source

Neural Random Forests

open access: yesSankhya A, 2018
Given an ensemble of randomized regression trees, it is possible to restructure them as a collection of multilayered neural networks with particular connection weights. Following this principle, we reformulate the random forest method of Breiman (2001) into a neural network setting, and in turn propose two new hybrid procedures that we call neural ...
Biau, Gérard   +2 more
openaire   +3 more sources

A Multi-Task Framework for Action Prediction

open access: yesInformation, 2020
Predicting the categories of actions in partially observed videos is a challenging task in the computer vision field. The temporal progress of an ongoing action is of great importance for action prediction, since actions can present different ...
Tianyu Yu   +3 more
doaj   +1 more source

Splitting on categorical predictors in random forests [PDF]

open access: yesPeerJ, 2019
One reason for the widespread success of random forests (RFs) is their ability to analyze most datasets without preprocessing. For example, in contrast to many other statistical methods and machine learning approaches, no recoding such as dummy coding is
Marvin N. Wright, Inke R. König
doaj   +2 more sources

Non-unitarisable representations and random forests [PDF]

open access: yes, 2008
We establish a connection between Dixmier's unitarisability problem and the expected degree of random forests on a group. As a consequence, a residually finite group is non-unitarisable if its first L2-Betti number is non-zero or if it is finitely ...
Epstein, Inessa, Monod, Nicolas
core   +3 more sources

Tuning parameters in random forests

open access: yesESAIM: Proceedings and Surveys, 2017
Breiman's (2001) random forests are a very popular class of learning algorithms often able to produce good predictions even in high-dimensional frameworks, with no need to accurately tune its inner parameters.
Scornet Erwan
doaj   +1 more source

Random Survival Forests [PDF]

open access: yesJournal of Thoracic Oncology, 2011
In the article by Chen et al,1 the authors used Random Survival Forests (RSF) as part of their approach for analyzing the data. In this note, we will explain RSF in a nontechnical way; precise details of the RSF method are described in the article by Ishwaran et al.2 RSF are an adaptation of Random Forests (RF)3 designed to be used for survival data ...
openaire   +2 more sources

Soil Mapping Based on the Integration of the Similarity-Based Approach and Random Forests

open access: yesLand, 2020
Digital soil mapping (DSM) is currently the primary framework for predicting the spatial variation of soil information (soil type or soil properties). Random forests and similarity-based methods have been used widely in DSM.
Desheng Wang, A-Xing Zhu
doaj   +1 more source

Consistency of random forests [PDF]

open access: yes, 2015
Random forests are a learning algorithm proposed by Breiman [Mach. Learn. 45 (2001) 5--32] that combines several randomized decision trees and aggregates their predictions by averaging. Despite its wide usage and outstanding practical performance, little
Biau, Gérard   +2 more
core   +5 more sources

Aggregated Recommendation through Random Forests

open access: yesThe Scientific World Journal, 2014
Aggregated recommendation refers to the process of suggesting one kind of items to a group of users. Compared to user-oriented or item-oriented approaches, it is more general and, therefore, more appropriate for cold-start recommendation.
Heng-Ru Zhang, Fan Min, Xu He
doaj   +1 more source

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