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Unsupervised image clustering methods often introduce alternative objectives to indirectly train the model and are subject to faulty predictions and overconfident results. To overcome these challenges, the current research proposes an…

计算机视觉与模式识别 · 计算机科学 2021-03-30 Sungwon Park , Sungwon Han , Sundong Kim , Danu Kim , Sungkyu Park , Seunghoon Hong , Meeyoung Cha

Gradient boosting algorithms construct a regression predictor using a linear combination of ``base learners''. Boosting also offers an approach to obtaining robust non-parametric regression estimators that are scalable to applications with…

统计方法学 · 统计学 2020-08-11 Xiaomeng Ju , Matías Salibián-Barrera

Propensity score weighting approaches have been widely implemented in clinical research to estimate the effects of a treatment or exposure while mitigating the risk of confounding in the absence of random assignment. In practice, when…

统计方法学 · 统计学 2026-04-17 Emma K. Mackay , Amol A. Verma , Fahad Razak , Surain B. Roberts

We address measurement error bias in propensity score (PS) analysis due to covariates that are latent variables. In the setting where latent covariate $X$ is measured via multiple error-prone items $\mathbf{W}$, PS analysis using several…

统计方法学 · 统计学 2020-02-13 Trang Quynh Nguyen , Elizabeth A. Stuart

Propensity score weighting is a common method for estimating treatment effects with survey data. The method is applied to minimize confounding using measured covariates that are often different between individuals in treatment and control.…

统计方法学 · 统计学 2026-02-06 Yukang Zeng , Fan Li , Guangyu Tong

Plant diseases serve as one of main threats to food security and crop production. It is thus valuable to exploit recent advances of artificial intelligence to assist plant disease diagnosis. One popular approach is to transform this problem…

计算机视觉与模式识别 · 计算机科学 2020-03-19 Ruifeng Shi , Deming Zhai , Xianming Liu , Junjun Jiang , Wen Gao

Deep neural networks trained with standard cross-entropy loss are more prone to memorize noisy labels, which degrades their performance. Negative learning using complementary labels is more robust when noisy labels intervene but with an…

机器学习 · 计算机科学 2022-09-07 Chen-Chen Zong , Zheng-Tao Cao , Hong-Tao Guo , Yun Du , Ming-Kun Xie , Shao-Yuan Li , Sheng-Jun Huang

Conformal Prediction (CP) quantifies network uncertainty by building a small prediction set with a pre-defined probability that the correct class is within this set. In this study we tackle the problem of CP calibration based on a…

机器学习 · 计算机科学 2024-05-22 Coby Penso , Jacob Goldberger

High-quality data is crucial for the success of machine learning, but labeling large datasets is often a time-consuming and costly process. While semi-supervised learning can help mitigate the need for labeled data, label quality remains an…

计算机视觉与模式识别 · 计算机科学 2023-05-23 Lars Schmarje , Vasco Grossmann , Tim Michels , Jakob Nazarenus , Monty Santarossa , Claudius Zelenka , Reinhard Koch

Recently, there has been a burst in the number of research projects on human computation via crowdsourcing. Multiple choice (or labeling) questions could be referred to as a common type of problem which is solved by this approach. As an…

人工智能 · 计算机科学 2014-09-04 Jafar Muhammadi , Hamid Reza Rabiee , Abbas Hosseini

We present a novel method for variable selection in regression models when covariates are measured with error. The iterative algorithm we propose, MEBoost, follows a path defined by estimating equations that correct for covariate…

统计计算 · 统计学 2017-10-26 Benjamin Brown , Timothy Weaver , Julian Wolfson

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

State-of-the-art machine learning models require access to significant amount of annotated data in order to achieve the desired level of performance. While unlabelled data can be largely available and even abundant, annotation process can…

机器学习 · 计算机科学 2020-10-15 Rahaf Aljundi , Nikolay Chumerin , Daniel Olmeda Reino

Many clustering methods, including k-means, require the user to specify the number of clusters as an input parameter. A variety of methods have been devised to choose the number of clusters automatically, but they often rely on strong…

统计方法学 · 统计学 2017-02-10 Wei Fu , Patrick O. Perry

Addressing bias in the trained machine learning system often requires access to sensitive attributes. In practice, these attributes are not available either due to legal and policy regulations or data unavailability for a given demographic.…

机器学习 · 计算机科学 2023-12-27 Bhushan Chaudhary , Anubha Pandey , Deepak Bhatt , Darshika Tiwari

In contemporary economic society, credit scores are crucial for every participant. A robust credit evaluation system is essential for the profitability of core businesses such as credit cards, loans, and investments for commercial banks and…

机器学习 · 计算机科学 2024-11-13 Qianwen Xing , Chang Yu , Sining Huang , Qi Zheng , Xingyu Mu , Mengying Sun

Accurate illness diagnosis is vital for effective treatment and patient safety. Machine learning models are widely used for cancer diagnosis based on historical medical data. However, data imbalance remains a major challenge, leading to…

机器学习 · 计算机科学 2025-03-18 Soufiane Bacha , Huansheng Ning , Belarbi Mostefa , Doreen Sebastian Sarwatt , Sahraoui Dhelim

With the development of deep learning, medical image classification has been significantly improved. However, deep learning requires massive data with labels. While labeling the samples by human experts is expensive and time-consuming,…

图像与视频处理 · 电气工程与系统科学 2021-09-14 Jiarun Liu , Ruirui Li , Chuan Sun

Machine learning algorithms have grown in sophistication over the years and are increasingly deployed for real-life applications. However, when using machine learning techniques in practical settings, particularly in high-risk applications…

机器学习 · 计算机科学 2023-10-06 Sukrita Singh , Neeraj Sarna , Yuanyuan Li , Yang Li , Agni Orfanoudaki , Michael Berger

Probabilistic predictions can be evaluated through comparisons with observed label frequencies, that is, through the lens of calibration. Recent scholarship on algorithmic fairness has started to look at a growing variety of…

机器学习 · 计算机科学 2023-05-16 Benedikt Höltgen , Robert C Williamson