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The requirement that planetary systems be dynamically stable is often used to vet new discoveries or set limits on unconstrained masses or orbital elements. This is typically carried out via computationally expensive N-body simulations. We…

This paper introduces a novel adaptive ensemble framework that synergistically combines XGBoost and neural networks through sophisticated meta-learning. The proposed method leverages advanced uncertainty quantification techniques and…

机器学习 · 计算机科学 2025-10-07 Arthur Sedek

The paper presents Imbalance-XGBoost, a Python package that combines the powerful XGBoost software with weighted and focal losses to tackle binary label-imbalanced classification tasks. Though a small-scale program in terms of size, the…

机器学习 · 计算机科学 2021-08-24 Chen Wang , Chengyuan Deng , Suzhen Wang

Gas cooling and heating functions play a crucial role in galaxy formation. But, it is computationally expensive to exactly compute these functions in the presence of an incident radiation field. These computations can be greatly sped up by…

宇宙学与河外天体物理 · 物理学 2024-01-22 David Robinson , Camille Avestruz , Nickolay Y. Gnedin

In an online shopping platform, a detailed classification of the products facilitates user navigation. It also helps online retailers keep track of the price fluctuations in a certain industry or special discounts on a specific product…

信息检索 · 计算机科学 2021-09-07 Hadi Jahanshahi , Ozan Ozyegen , Mucahit Cevik , Beste Bulut , Deniz Yigit , Fahrettin F. Gonen , Ayşe Başar

We propose a model based on a large number of small competitive producers of renewable energies, to study the effect of subsidies on the aggregate level of capacity, taking into account a cannibalization effect. We first derive a model to…

最优化与控制 · 数学 2023-05-26 Clémence Alasseur , Matteo Basei , Charles Bertucci , Alekos Cecchin

While Post-Earnings-Announcement Drift (PEAD) is one of the most studied stock market anomalies, the current literature is often limited in explaining this phenomenon by a small number of factors using simpler regression methods. In this…

统计金融 · 定量金融 2020-09-08 Zhengxin Joseph Ye , Bjorn W. Schuller

The sales process involves sales functions converting leads or opportunities to customers and selling more products to existing customers. The optimization of the sales process thus is key to success of any B2B business. In this work, we…

In biostatistics, propensity score is a common approach to analyze the imbalance of covariate and process confounding covariates to eliminate differences between groups. While there are an abundant amount of methods to compute propensity…

统计方法学 · 统计学 2018-01-11 Chen Wang , Suzhen Wang , Fuyan Shi , Zaixiang Wang

Supply chain management faces significant challenges, including demand fluctuations, inventory imbalances, and amplified upstream order variability due to the bullwhip effect. Traditional methods, such as simple moving averages, struggle to…

人工智能 · 计算机科学 2025-11-17 Chunan Tong

From the past few years, due to advancements in technologies, the sedentary living style in urban areas is at its peak. This results in individuals getting a victim of obesity at an early age. There are various health impacts of obesity…

机器学习 · 计算机科学 2021-08-23 Satvik Garg , Pradyumn Pundir

Overfitting & underfitting and stable training are an important challenges in machine learning. Current approaches for these issues are mixup, SamplePairing and BC learning. In our work, we state the hypothesis that mixing many images…

机器学习 · 计算机科学 2020-01-22 Maciej A. Czyzewski

The research paper presents a novel approach to optimizing the tensile stress of Triply Periodic Minimal Surface (TPMS) structures through machine learning and Simulated Annealing (SA). The study evaluates the performance of Random Forest,…

材料科学 · 物理学 2024-06-11 Akshansh Mishra

Boosting algorithms have been widely used to tackle a plethora of problems. In the last few years, a lot of approaches have been proposed to provide standard AdaBoost with cost-sensitive capabilities, each with a different focus. However,…

计算机视觉与模式识别 · 计算机科学 2016-07-25 Iago Landesa-Vázquez , José Luis Alba-Castro

Consideration of the primal and dual problems together leads to important new insights into the characteristics of boosting algorithms. In this work, we propose a general framework that can be used to design new boosting algorithms. A wide…

人工智能 · 计算机科学 2011-12-13 Chunhua Shen , Hanxi Li , Nick Barnes

In this paper, we investigate how feature interactions can be identified to be used as constraints in the gradient boosting tree models using XGBoost's implementation. Our results show that accurate identification of these constraints can…

机器学习 · 计算机科学 2020-07-14 Kshitij Goyal , Sebastijan Dumancic , Hendrik Blockeel

This paper presents an approach integrating explainable artificial intelligence (XAI) techniques with adaptive learning to enhance energy consumption prediction models, with a focus on handling data distribution shifts. Leveraging SHAP…

机器学习 · 计算机科学 2024-02-08 Tobias Clement , Hung Truong Thanh Nguyen , Nils Kemmerzell , Mohamed Abdelaal , Davor Stjelja

Many optimization techniques evaluate solutions consecutively, where the next candidate for evaluation is determined by the results of previous evaluations. For example, these include iterative methods, "black box" optimization algorithms,…

人工智能 · 计算机科学 2018-09-03 Oleg V. Shylo , Hesam Shams

This paper aims to explore models based on the extreme gradient boosting (XGBoost) approach for business risk classification. Feature selection (FS) algorithms and hyper-parameter optimizations are simultaneously considered during model…

机器学习 · 统计学 2019-01-25 Yan Wang , Xuelei Sherry Ni

This study examines the effect that different feature selection methods have on models created with XGBoost, a popular machine learning algorithm with superb regularization methods. It shows that three different ways for reducing the…

机器学习 · 计算机科学 2024-11-12 Jorge Neyra , Vishal B. Siramshetty , Huthaifa I. Ashqar