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Modern search engine ranking pipelines are commonly based on large machine-learned ensembles of regression trees. We propose LEAR, a novel - learned - technique aimed to reduce the average number of trees traversed by documents to…

Ensemble techniques have demonstrated remarkable success in improving predictive performance across various domains by aggregating predictions from multiple models [1]. In the realm of recommender systems, this research explores the…

信息检索 · 计算机科学 2024-07-09 Zainil Mehta , Tobias Vente

This study focuses on developing precise machine learning (ML) regression models for predicting energy bandgap values based on chemical compositions and crystal structures. The primary aim is to match the accuracy of predictions derived…

材料科学 · 物理学 2023-09-15 Mukesh K. Choudhary , Amal Raj , Gowri Sankar S , P. Ravindran

Both neural networks and decision trees are popular machine learning methods and are widely used to solve problems from diverse domains. These two classifiers are commonly used base classifiers in an ensemble framework. In this paper, we…

机器学习 · 计算机科学 2018-02-06 Rakesh Katuwal , P. N. Suganthan

Farmers in developing regions like Karnataka, India, face a dual challenge: navigating extreme market and climate volatility while being excluded from the digital revolution due to literacy barriers. This paper presents a novel decision…

机器学习 · 计算机科学 2025-07-15 Niranjan Mallikarjun Sindhur , Pavithra C , Nivya Muchikel

Ensemble methods for supervised machine learning have become popular due to their ability to accurately predict class labels with groups of simple, lightweight "base learners." While ensembles offer computationally efficient models that…

机器学习 · 统计学 2011-09-01 Orianna DeMasi , Juan Meza , David H. Bailey

This study presents a machine learning framework for forecasting short-term faults in industrial centrifugal pumps using real-time sensor data. The approach aims to predict {EarlyWarning} conditions 5, 15, and 30 minutes in advance based on…

The prevailing mindset is that a single decision tree underperforms classic random forests in testing accuracy, despite its advantages in interpretability and lightweight structure. This study challenges such a mindset by significantly…

机器学习 · 计算机科学 2024-11-27 Qiangqiang Mao , Yankai Cao

We introduce a modification of Random Forests to estimate functions when unobserved confounding variables are present. The technique is tailored for high-dimensional settings with many observed covariates. We use spectral deconfounding…

统计计算 · 统计学 2025-09-25 Markus Ulmer , Cyrill Scheidegger , Peter Bühlmann

We introduce random survival forests, a random forests method for the analysis of right-censored survival data. New survival splitting rules for growing survival trees are introduced, as is a new missing data algorithm for imputing missing…

应用统计 · 统计学 2008-11-12 Hemant Ishwaran , Udaya B. Kogalur , Eugene H. Blackstone , Michael S. Lauer

Our work aimed at experimentally assessing the benefits of model ensembling within the context of neural methods for passage reranking. Starting from relatively standard neural models, we use a previous technique named Fast Geometric…

信息检索 · 计算机科学 2021-01-22 Luís Borges , Bruno Martins , Jamie Callan

Since their introduction by Breiman, Random Forests (RFs) have proven to be useful for both classification and regression tasks. The RF prediction of a previously unseen observation can be represented as a weighted sum of all training…

应用统计 · 统计学 2025-08-21 Nils Koster , Fabian Krüger

Historical observations of severe weather and simulated severe weather environments (i.e., features) from the Global Ensemble Forecast System v12 (GEFSv12) Reforecast Dataset (GEFS/R) are used in conjunction to train and test random forest…

大气与海洋物理 · 物理学 2022-12-19 Aaron J. Hill , Russ S. Schumacher , Israel Jirak

Tree-based methods are powerful nonparametric techniques in statistics and machine learning. However, their effectiveness, particularly in finite-sample settings, is not fully understood. Recent applications have revealed their surprising…

统计理论 · 数学 2024-10-04 Hengrui Luo , Meng Li

Despite their remarkable effectiveness and broad application, the drivers of success underlying ensembles of trees are still not fully understood. In this paper, we highlight how interpreting tree ensembles as adaptive and self-regularizing…

机器学习 · 统计学 2024-02-05 Alicia Curth , Alan Jeffares , Mihaela van der Schaar

Ensemble learning is characterized by flexibility, high precision, and refined structure. As a critical component within computational finance, option pricing with machine learning requires both high predictive accuracy and reduced…

机器学习 · 计算机科学 2025-06-09 Zeyuan Li , Qingdao Huang

Random forest is a popular prediction approach for handling high dimensional covariates. However, it often becomes infeasible to interpret the obtained high dimensional and non-parametric model. Aiming for obtaining an interpretable…

统计方法学 · 统计学 2020-05-12 Jasper Velthoen , Juan-Juan Cai , Geurt Jongbloed

Random forests are a type of ensemble method which makes predictions by combining the results of several independent trees. However, the theory of random forests has long been outpaced by their application. In this paper, we propose a novel…

机器学习 · 计算机科学 2015-07-23 Jianyuan Sun , Guoqiang Zhong , Junyu Dong , Yajuan Cai

In a variety of business situations, the introduction or improvement of machine learning approaches is impaired as these cannot draw on existing analytical models. However, in many cases similar problems may have already been solved…

机器学习 · 计算机科学 2020-05-22 Robin Hirt , Niklas Kühl , Yusuf Peker , Gerhard Satzger

We revisit the interest of classical statistical techniques for sales forecasting like exponential smoothing and extensions thereof (as Holt's linear trend method). We do so by considering ensemble forecasts, given by several instances of…

应用统计 · 统计学 2020-06-08 Malo Huard , Rémy Garnier , Gilles Stoltz