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Nowadays, many classification algorithms have been applied to various industries to help them work out their problems met in real-life scenarios. However, in many binary classification tasks, samples in the minority class only make up a…

机器学习 · 计算机科学 2022-08-23 Xiayu Liang , Ying Gao , Shanrong Xu

Ensemble methods combine the predictions of multiple models to improve performance, but they require significantly higher computation costs at inference time. To avoid these costs, multiple neural networks can be combined into one by…

机器学习 · 计算机科学 2024-05-07 Alexia Jolicoeur-Martineau , Emy Gervais , Kilian Fatras , Yan Zhang , Simon Lacoste-Julien

Ensemble learning leverages multiple models (i.e., weak learners) on a common machine learning task to enhance prediction performance. Basic ensembling approaches average the weak learners outputs, while more sophisticated ones stack a…

机器学习 · 计算机科学 2024-09-20 Mathieu Vu , Emilie Chouzenoux , Ismail Ben Ayed , Jean-Christophe Pesquet

Active learning selects the most informative samples to exploit limited annotation budgets. Existing work follows a cumbersome pipeline that repeats the time-consuming model training and batch data selection multiple times. In this paper,…

计算机视觉与模式识别 · 计算机科学 2022-03-22 Yichen Xie , Masayoshi Tomizuka , Wei Zhan

Ensembles, where multiple neural networks are trained individually and their predictions are averaged, have been shown to be widely successful for improving both the accuracy and predictive uncertainty of single neural networks. However, an…

机器学习 · 计算机科学 2020-02-21 Yeming Wen , Dustin Tran , Jimmy Ba

We introduce a novel view to understand how dropout works as an inexplicit ensemble learning method, which doesn't point out how many and which nodes to learn a certain feature. We propose a new training method named internal node bagging,…

机器学习 · 计算机科学 2018-09-24 Shun Yi

Large language models (LLMs) have enabled agents to perform complex reasoning and decision-making through free-form language interactions. However, in open-ended language action environments (e.g., negotiation or question-asking games), the…

计算与语言 · 计算机科学 2025-06-05 Ruihan Yang , Yikai Zhang , Aili Chen , Xintao Wang , Siyu Yuan , Jiangjie Chen , Deqing Yang , Yanghua Xiao

The combination of multiple classifiers using ensemble methods is increasingly important for making progress in a variety of difficult prediction problems. We present a comparative analysis of several ensemble methods through two case…

机器学习 · 计算机科学 2013-09-20 Sean Whalen , Gaurav Pandey

We present the checkpoint ensembles method that can learn ensemble models on a single training process. Although checkpoint ensembles can be applied to any parametric iterative learning technique, here we focus on neural networks. Neural…

机器学习 · 计算机科学 2017-10-11 Hugh Chen , Scott Lundberg , Su-In Lee

We investigate ensemble methods for prediction in an online setting. Unlike all the literature in ensembling, for the first time, we introduce a new approach using a meta learner that effectively combines the base model predictions via…

机器学习 · 计算机科学 2022-12-01 Arda Fazla , Mustafa Enes Aydin , Orhun Tamyigit , Suleyman Serdar Kozat

The dynamic ensemble selection of classifiers is an effective approach for processing label-imbalanced data classifications. However, such a technique is prone to overfitting, owing to the lack of regularization methods and the dependence…

机器学习 · 计算机科学 2020-11-09 Chen Wang , Chengyuan Deng , Zhoulu Yu , Dafeng Hui , Xiaofeng Gong , Ruisen Luo

Recent advancements in Chain-of-Thought prompting have facilitated significant breakthroughs for Large Language Models (LLMs) in complex reasoning tasks. Current research enhances the reasoning performance of LLMs by sampling multiple…

Piecewise Aggregate Approximation (PAA) is a competitive basic dimension reduction method for high-dimensional time series mining. When deployed, however, the limitations are obvious that some important information will be missed,…

机器学习 · 计算机科学 2019-07-02 Chunkai Zhang , Yingyang Chen , Ao Yin , Zhen Qin , Xing Zhang , Keli Zhang , Zoe L. Jiang

To accelerate learning process with few samples, meta-learning resorts to prior knowledge from previous tasks. However, the inconsistent task distribution and heterogeneity is hard to be handled through a global sharing model…

机器学习 · 计算机科学 2022-06-22 Geng Li , Boyuan Ren , Hongzhi Wang

Ensemble-based methods are highly popular approaches that increase the accuracy of a decision by aggregating the opinions of individual voters. The common point is to maximize accuracy; however, a natural limitation occurs if incremental…

机器学习 · 计算机科学 2020-04-20 Andras Hajdu , Gyorgy Terdik , Attila Tiba , Henrietta Toman

We propose an algorithm for incremental learning of classifiers. The proposed method enables an ensemble of classifiers to learn incrementally by accommodating new training data. We use an effective mechanism to overcome the…

机器学习 · 计算机科学 2019-02-11 Shivang Agarwal , C. Ravindranath Chowdary , Shripriya Maheshwari

Judgment aggregation problems form a class of collective decision-making problems represented in an abstract way, subsuming some well known problems such as voting. A collective decision can be reached in many ways, but a direct one-step…

人工智能 · 计算机科学 2016-08-30 Marija Slavkovik , Wojciech Jamroga

Addressing biases in AI models is crucial for ensuring fair and accurate predictions. However, obtaining large, unbiased datasets for training can be challenging. This paper proposes a comprehensive approach using multiple methods to remove…

机器学习 · 计算机科学 2024-02-15 Ahmed Radwan , Layan Zaafarani , Jetana Abudawood , Faisal AlZahrani , Fares Fourati

As a common method in Machine Learning, Ensemble Method is used to train multiple models from a data set and obtain better results through certain combination strategies. Stacking method, as representatives of Ensemble Learning methods, is…

机器学习 · 计算机科学 2020-09-15 Jiacheng Ruan , Jiahao Li

In this paper, we bridge the gap between hyperparameter optimization and ensemble learning by performing Bayesian optimization of an ensemble with regards to its hyperparameters. Our method consists in building a fixed-size ensemble,…

机器学习 · 计算机科学 2016-05-23 Julien-Charles Lévesque , Christian Gagné , Robert Sabourin