Results 31 to 40 of about 914,879 (290)

Forecasting with many predictors - Is boosting a viable alternative? [PDF]

open access: yes, 2010
This paper evaluates the forecast performance of boosting, a variable selection device, and compares it with the forecast combination schemes and dynamic factor models presented in Stock and Watson (2006).
Wohlrabe, Klaus, Buchen, Teresa
core   +1 more source

Gradient boosting for quantitative finance

open access: yesThe Journal of Computational Finance, 2021
In this paper, we discuss how tree-based machine learning techniques can be used in the context of derivatives pricing. Gradient boosted regression trees are employed to learn the pricing map for a couple of classical, time-consuming problems in quantitative finance.
Davis, Jesse   +3 more
openaire   +2 more sources

Gradient boosting for linear mixed models [PDF]

open access: yesThe International Journal of Biostatistics, 2021
Abstract Gradient boosting from the field of statistical learning is widely known as a powerful framework for estimation and selection of predictor effects in various regression models by adapting concepts from classification theory.
Griesbach, Colin   +2 more
openaire   +5 more sources

Fusion and Classification of SAR and Optical Data Using Multi-Image Color Components with Differential Gradients

open access: yesRemote Sensing, 2023
This paper proposes a gradient-based data fusion and classification approach for Synthetic Aperture Radar (SAR) and optical image. This method is used to intuitively reflect the boundaries and edges of land cover classes present in the dataset.
Achala Shakya   +2 more
doaj   +1 more source

Accelerating Gradient Boosting Machine

open access: yesCoRR, 2019
Gradient Boosting Machine (GBM) is an extremely powerful supervised learning algorithm that is widely used in practice. GBM routinely features as a leading algorithm in machine learning competitions such as Kaggle and the KDDCup. In this work, we propose Accelerated Gradient Boosting Machine (AGBM) by incorporating Nesterov's acceleration techniques ...
Lu, Haihao   +3 more
openaire   +5 more sources

Flexible Boosting of Accelerated Failure Time Models [PDF]

open access: yes, 2008
When boosting algorithms are used for building survival models from high-dimensional data, it is common to fit a Cox proportional hazards model or to apply semiparametric least squares techniques.
Torsten Hothorn   +5 more
core   +1 more source

Machine learning techniques for classifying dangerous asteroids

open access: yesMethodsX, 2023
There is an infinite number of objects in outer space, and these objects and asteroids might be harmful. Hence, it is wise to know what is surrounding us and what can harm us amongst those.Therefore, in this article, with the hyperparameters tuning of ...
Seyed Matin Malakouti   +2 more
doaj   +1 more source

Gradient boosting decision tree algorithm.

open access: yes, 2021
Gradient boosting decision tree algorithm.
Wenjing Xu (183446)   +5 more
core   +1 more source

Boosting Additive Models using Component-wise P-Splines [PDF]

open access: yes, 2007
We consider an efficient approximation of Bühlmann & Yu’s L2Boosting algorithm with component-wise smoothing splines. Smoothing spline base-learners are replaced by P-spline base-learners which yield similar prediction errors but are more advantageous ...
Hothorn, Torsten, Schmid, Matthias
core   +1 more source

Developing and Preliminary Testing of a Machine Learning-Based Platform for Sales Forecasting Using a Gradient Boosting Approach

open access: yesApplied Sciences, 2022
Organizations engaged in business, regardless of the industry in which they operate, must be able to extract knowledge from the data available to them. Often the volume of customer and supplier data is so large, the use of advanced data mining algorithms
Antonio Panarese   +3 more
doaj   +1 more source

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