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Multiclass neural network classifiers are typically trained using cross-entropy loss but evaluated using metrics derived from the confusion matrix, such as Accuracy, $F_\beta$-Score, and Matthews Correlation Coefficient. This mismatch…

机器学习 · 计算机科学 2025-05-27 Deyuan Li , Taesoo Daniel Lee , Marynel Vázquez , Nathan Tsoi

Transfer learning is a promising method for AOI applications since it can significantly shorten sample collection time and improve efficiency in today's smart manufacturing. However, related research enhanced the network models by applying…

计算机视觉与模式识别 · 计算机科学 2023-01-18 Erik Isai Valle Salgado , Haoxin Yan , Yue Hong , Peiyuan Zhu , Shidong Zhu , Chengwei Liao , Yanxiang Wen , Xiu Li , Xiang Qian , Xiaohao Wang , Xinghui Li

A mainstream type of current self-supervised learning methods pursues a general-purpose representation that can be well transferred to downstream tasks, typically by optimizing on a given pretext task such as instance discrimination. In…

计算机视觉与模式识别 · 计算机科学 2022-10-21 Xin Liu , Zhongdao Wang , Yali Li , Shengjin Wang

Learning conditional distributions $\pi^*(\cdot|x)$ is a central problem in machine learning, which is typically approached via supervised methods with paired data $(x,y) \sim \pi^*$. However, acquiring paired data samples is often…

Model calibration aims to align confidence with prediction correctness. The Cross-Entropy (CE) loss is widely used for calibrator training, which enforces the model to increase confidence on the ground truth class. However, we find the CE…

计算机视觉与模式识别 · 计算机科学 2025-02-13 Yuchi Liu , Lei Wang , Yuli Zou , James Zou , Liang Zheng

Achieving optimality in controlling physical systems is a profound challenge across diverse scientific and engineering fields, spanning neuromechanics, biochemistry, autonomous systems, economics, and beyond. Traditional solutions, relying…

最优化与控制 · 数学 2025-02-14 Tingli Hu , Sami Haddadin

Transfer learning aims to improve performance on a target task by leveraging information from related source tasks. We propose a nonparametric regression transfer learning framework that explicitly models heterogeneity in the source-target…

统计理论 · 数学 2026-03-19 Hélène Halconruy , Benjamin Bobbia , Paul Lejamtel

Multi-tasking optimization can usually achieve better performance than traditional single-tasking optimization through knowledge transfer between tasks. However, current multi-tasking optimization algorithms have some deficiencies. For high…

神经与进化计算 · 计算机科学 2021-08-03 Zhengping Liang , Weiqi Liang , Xiuju Xu , Ling Liu , Zexuan Zhu

There has been growing interest in parameter-efficient methods to apply pre-trained language models to downstream tasks. Building on the Prompt Tuning approach of Lester et al. (2021), which learns task-specific soft prompts to condition a…

计算与语言 · 计算机科学 2022-03-18 Tu Vu , Brian Lester , Noah Constant , Rami Al-Rfou , Daniel Cer

Recent works in end-to-end speech-to-text translation (ST) have proposed multi-tasking methods with soft parameter sharing which leverage machine translation (MT) data via secondary encoders that map text inputs to an eventual cross-modal…

计算与语言 · 计算机科学 2023-09-28 Brian Yan , Xuankai Chang , Antonios Anastasopoulos , Yuya Fujita , Shinji Watanabe

In recent years, it is common practice to extract fully-connected layer (fc) features that were learned while performing image classification on a source dataset, such as ImageNet, and apply them generally to a wide range of other tasks.…

计算机视觉与模式识别 · 计算机科学 2018-04-03 Varun Manjunatha , Srikumar Ramalingam , Tim K. Marks , Larry Davis

Optimal Transport (OT) naturally arises in many machine learning applications, yet the heavy computational burden limits its wide-spread uses. To address the scalability issue, we propose an implicit generative learning-based framework…

机器学习 · 计算机科学 2019-06-26 Yujia Xie , Minshuo Chen , Haoming Jiang , Tuo Zhao , Hongyuan Zha

Real-world machine learning deployments are characterized by mismatches between the source (training) and target (test) distributions that may cause performance drops. In this work, we investigate methods for predicting the target domain…

机器学习 · 计算机科学 2022-10-18 Saurabh Garg , Sivaraman Balakrishnan , Zachary C. Lipton , Behnam Neyshabur , Hanie Sedghi

Although the notion of task similarity is potentially interesting in a wide range of areas such as curriculum learning or automated planning, it has mostly been tied to transfer learning. Transfer is based on the idea of reusing the…

机器学习 · 计算机科学 2021-03-09 Álvaro Visús , Javier García , Fernando Fernández

In this paper, we explore the knowledge transfer under the setting of matrix completion, which aims to enhance the estimation of a low-rank target matrix with auxiliary data available. We propose a transfer learning procedure given prior…

机器学习 · 统计学 2025-07-04 Dali Liu , Haolei Weng

This paper presents a novel method for embedding transfer, a task of transferring knowledge of a learned embedding model to another. Our method exploits pairwise similarities between samples in the source embedding space as the knowledge,…

计算机视觉与模式识别 · 计算机科学 2021-03-30 Sungyeon Kim , Dongwon Kim , Minsu Cho , Suha Kwak

Optimal transport (OT) barycenters are a mathematically grounded way of averaging probability distributions while capturing their geometric properties. In short, the barycenter task is to take the average of a collection of probability…

Real-world electricity consumption prediction may involve different tasks, e.g., prediction for different time steps ahead or different geo-locations. These tasks are often solved independently without utilizing some common problem-solving…

机器学习 · 计算机科学 2022-06-01 Hui Song , A. K. Qin , Chenggang Yan

Transfer effects manifest themselves both during training using a fixed data set and in inductive inference using accumulating data. We hypothesize that perturbing the data set by including more samples, instead of perturbing the model by…

机器学习 · 计算机科学 2026-01-01 András Millinghoffer , Bence Bolgár , Péter Antal

Automatic machine translation (MT) metrics are widely used to distinguish the translation qualities of machine translation systems across relatively large test sets (system-level evaluation). However, it is unclear if automatic metrics are…

计算与语言 · 计算机科学 2023-06-21 Nikita Moghe , Tom Sherborne , Mark Steedman , Alexandra Birch