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Gradient boosted trees (GBTs) are ubiquitous models used by researchers, machine learning (ML) practitioners, and data scientists because of their robust performance, interpretable behavior, and ease-of-use. One critical challenge in…

机器学习 · 计算机科学 2023-07-12 Aleksei Sorokin , Xinran Zhu , Eric Hans Lee , Bolong Cheng

We introduce S-BDT: a novel $(\varepsilon,\delta)$-differentially private distributed gradient boosted decision tree (GBDT) learner that improves the protection of single training data points (privacy) while achieving meaningful learning…

密码学与安全 · 计算机科学 2024-08-19 Thorsten Peinemann , Moritz Kirschte , Joshua Stock , Carlos Cotrini , Esfandiar Mohammadi

In many applications of supervised learning, multiple classification or regression outputs have to be predicted jointly. We consider several extensions of gradient boosting to address such problems. We first propose a straightforward…

机器学习 · 统计学 2019-05-21 Arnaud Joly , Louis Wehenkel , Pierre Geurts

Internet companies are facing the need for handling large-scale machine learning applications on a daily basis and distributed implementation of machine learning algorithms which can handle extra-large scale tasks with great performance is…

机器学习 · 计算机科学 2020-03-17 Ya-Lin Zhang , Jun Zhou , Wenhao Zheng , Ji Feng , Longfei Li , Ziqi Liu , Ming Li , Zhiqiang Zhang , Chaochao Chen , Xiaolong Li , Zhi-Hua Zhou , YUAN , QI

Recent work on deep learning for tabular data demonstrates the strong performance of deep tabular models, often bridging the gap between gradient boosted decision trees and neural networks. Accuracy aside, a major advantage of neural models…

Gradient Boosting (GB) is a popular methodology used to solve prediction problems by minimizing a differentiable loss function, $L$. GB performs very well on tabular machine learning (ML) problems; however, as a pure ML solver it lacks the…

机器学习 · 计算机科学 2022-11-08 Michael T. Horrell

Large language models (LLMs) perform remarkably well on tabular datasets in zero- and few-shot settings, since they can extract meaning from natural language column headers that describe features and labels. Similarly, TabPFN, a recent…

It is essential to capture the true probability distribution of uncertain data in the distributionally robust optimization (DRO). The uncertain data presents multimodality in numerous application scenarios, in the sense that the probability…

最优化与控制 · 数学 2024-03-14 Yueyao Li , Chenglong Bao , Wenxun Xing

Cloud-based software has many advantages. When services are divided into many independent components, they are easier to update. Also, during peak demand, it is easier to scale cloud services (just hire more CPUs). Hence, many organizations…

机器学习 · 计算机科学 2022-06-29 Rahul Yedida , Rahul Krishna , Anup Kalia , Tim Menzies , Jin Xiao , Maja Vukovic

It is known that the set of perturbed data is key in robust optimization (RO) modelling. Distributionally robust optimization (DRO) is a methodology used for optimization problems affected by random parameters with uncertain probability…

最优化与控制 · 数学 2022-05-09 Yueyao Li , Wenxun Xing

A new challenge for learning algorithms in cyber-physical network systems is the distributed solution of big-data classification problems, i.e., problems in which both the number of training samples and their dimension is high. Motivated by…

最优化与控制 · 数学 2017-02-16 Giuseppe Notarstefano

Understanding heterogeneous multivariate time series data is important in many applications ranging from smart homes to aviation. Learning models of heterogeneous multivariate time series that are also human-interpretable is challenging and…

机器学习 · 计算机科学 2018-01-30 Ritchie Lee , Mykel J. Kochenderfer , Ole J. Mengshoel , Joshua Silbermann

Trees are fundamental data structure for many areas of computer science and system engineering. In this report, we show how to ensure eventual consistency of optimistically replicated trees. In optimistic replication, the different replicas…

数据结构与算法 · 计算机科学 2012-01-10 Stéphane Martin , Mehdi Ahmed-Nacer , Pascal Urso

Nowadays with a growing number of online controlling systems in the organization and also a high demand of monitoring and stats facilities that uses data streams to log and control their subsystems, data stream mining becomes more and more…

机器学习 · 计算机科学 2019-02-12 Radin Hamidi Rad , Maryam Amir Haeri

Generative data augmentation, which scales datasets by obtaining fake labeled examples from a trained conditional generative model, boosts classification performance in various learning tasks including (semi-)supervised learning, few-shot…

机器学习 · 计算机科学 2023-05-30 Chenyu Zheng , Guoqiang Wu , Chongxuan Li

Recently, a new paradigm, meta learning, has been widely applied to Deep Learning Recommendation Models (DLRM) and significantly improves statistical performance, especially in cold-start scenarios. However, the existing systems are not…

机器学习 · 计算机科学 2024-04-16 Youshao Xiao , Shangchun Zhao , Zhenglei Zhou , Zhaoxin Huan , Lin Ju , Xiaolu Zhang , Lin Wang , Jun Zhou

This paper addresses the problem of efficiently storing and accessing massive data blocks in a large-scale distributed environment, while providing efficient fine-grain access to data subsets. This issue is crucial in the context of…

分布式、并行与集群计算 · 计算机科学 2008-10-14 Bogdan Nicolae , Gabriel Antoniu , Luc Bougé

Bayesian deep learning (BDL) is a promising approach to achieve well-calibrated predictions on distribution-shifted data. Nevertheless, there exists no large-scale survey that evaluates recent SOTA methods on diverse, realistic, and…

机器学习 · 计算机科学 2023-10-26 Florian Seligmann , Philipp Becker , Michael Volpp , Gerhard Neumann

Understanding how "black-box" models arrive at their predictions has sparked significant interest from both within and outside the AI community. Our work focuses on doing this by generating local explanations about individual predictions…

机器学习 · 计算机科学 2019-07-08 Ana Lucic , Hinda Haned , Maarten de Rijke

In many settings, as for example wind farms, multiple machines are instantiated to perform the same task, which is called a fleet. The recent advances with respect to the Internet of Things allow control devices and/or machines to connect…

机器学习 · 计算机科学 2019-11-25 Timothy Verstraeten , Pieter JK Libin , Ann Nowé