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We consider a measurement constrained supervised learning problem, that is, (1) full sample of the predictors are given; (2) the response observations are unavailable and expensive to measure. Thus, it is ideal to select a subsample of…

统计方法学 · 统计学 2020-10-26 Cheng Meng , Rui Xie , Abhyuday Mandal , Xinlian Zhang , Wenxuan Zhong , Ping Ma

We consider the problem of learning a loss function which, when minimized over a training dataset, yields a model that approximately minimizes a validation error metric. Though learning an optimal loss function is NP-hard, we present an…

机器学习 · 计算机科学 2019-07-02 Matthew Streeter

Recent advancements in semi-supervised learning have focused on a more realistic yet challenging task: addressing imbalances in labeled data while the class distribution of unlabeled data remains both unknown and potentially mismatched.…

机器学习 · 计算机科学 2024-07-31 Chaoqun Du , Yizeng Han , Gao Huang

In this paper we observe a set, possibly a continuum, of signals corrupted by noise. Each signal is a finite mixture of an unknown number of features belonging to a continuous dictionary. The continuous dictionary is parametrized by a real…

机器学习 · 统计学 2024-02-26 Cristina Butucea , Jean-François Delmas , Anne Dutfoy , Clément Hardy

The presence of missing values makes supervised learning much more challenging. Indeed, previous work has shown that even when the response is a linear function of the complete data, the optimal predictor is a complex function of the…

机器学习 · 计算机科学 2020-11-05 Marine Le Morvan , Julie Josse , Thomas Moreau , Erwan Scornet , Gaël Varoquaux

A desirable property of learning systems is to be both effective and interpretable. Towards this goal, recent models have been proposed that first generate an extractive explanation from the input text and then generate a prediction on just…

计算与语言 · 计算机科学 2021-02-05 Zijian Zhang , Koustav Rudra , Avishek Anand

Single-operator learning involves training a deep neural network to learn a specific operator, whereas recent work in multi-operator learning uses an operator embedding structure to train a single neural network on data from multiple…

机器学习 · 计算机科学 2025-06-16 Jingmin Sun , Zecheng Zhang , Hayden Schaeffer

The concept of a recently proposed Forward-Forward learning algorithm for fully connected artificial neural networks is applied to a single multi output perceptron for classification. The parameters of the system are trained with respect to…

机器学习 · 计算机科学 2023-04-07 K. Fredrik Karlsson

This paper offers a new approach to address the model uncertainty in (potentially) divergent-dimensional single-index models (SIMs). We propose a model-averaging estimator based on cross-validation, which allows the dimension of covariates…

统计方法学 · 统计学 2022-06-14 Jiahui Zou , Wendun Wang , Xinyu Zhang , Guohua Zou

We consider the problem of on-line prediction of real-valued labels, assumed bounded in absolute value by a known constant, of new objects from known labeled objects. The prediction algorithm's performance is measured by the squared…

机器学习 · 计算机科学 2007-05-23 Vladimir Vovk

Speech evaluation measures a learners oral proficiency using automatic models. Corpora for training such models often pose sparsity challenges given that there often is limited scored data from teachers, in addition to the score…

人工智能 · 计算机科学 2024-09-24 Huayun Zhang , Jeremy H. M. Wong , Geyu Lin , Nancy F. Chen

We investigate the challenge of multi-output learning, where the goal is to learn a vector-valued function based on a supervised data set. This includes a range of important problems in Machine Learning including multi-target regression,…

机器学习 · 统计学 2020-02-25 Henry WJ Reeve , Ata Kaban

Finding the model that best describes a high-dimensional dataset is a daunting task, even more so if one aims to consider all possible high-order patterns of the data, going beyond pairwise models. For binary data, we show that this task…

人工智能 · 计算机科学 2024-08-28 Clélia de Mulatier , Matteo Marsili

A typical desideratum for quantifying the uncertainty from a classification model as a prediction set is class-conditional singleton set calibration. That is, such sets should map to the output of well-calibrated selective classifiers,…

机器学习 · 计算机科学 2022-12-02 Allen Schmaltz , Danielle Rasooly

In the partially-observed outcome setting, a recent set of proposals known as "prediction-powered inference" (PPI) involve (i) applying a pre-trained machine learning model to predict the response, and then (ii) using these predictions to…

统计方法学 · 统计学 2026-02-12 Runjia Zou , Daniela Witten , Brian Williamson

A common setting for scientific inference is the ability to sample from a high-fidelity forward model (simulation) without having an explicit probability density of the data. We propose a simulation-based maximum likelihood deconvolution…

When adapting ICL with or without fine-tuning, we are curious about whether the instruction-tuned language model is able to achieve well-calibrated results without suffering from the problem of overconfidence (i.e., miscalibration)…

计算与语言 · 计算机科学 2025-05-23 Chengzu Li , Han Zhou , Goran Glavaš , Anna Korhonen , Ivan Vulić

We study the problem of learning-augmented predictive linear quadratic control. Our goal is to design a controller that balances \textit{"consistency"}, which measures the competitive ratio when predictions are accurate, and…

系统与控制 · 电气工程与系统科学 2025-04-08 Tongxin Li , Ruixiao Yang , Guannan Qu , Guanya Shi , Chenkai Yu , Adam Wierman , Steven H. Low

Multimodal spatiotemporal learning on real-world experimental data is constrained by two challenges: within-modality measurements are sparse, irregular, and noisy (QA/QC artifacts) but cross-modally correlated; the set of available…

机器学习 · 计算机科学 2025-11-05 Kevin Valencia , Thilina Balasooriya , Xihaier Luo , Shinjae Yoo , David Keetae Park

The problem of sequential probability forecasting is considered in the most general setting: a model set C is given, and it is required to predict as well as possible if any of the measures (environments) in C is chosen to generate the…

机器学习 · 计算机科学 2019-10-25 Daniil Ryabko