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Offline reinforcement learning has become one of the most practical RL settings. However, most existing works on offline RL focus on the standard setting with scalar reward feedback. It remains unknown how to universally transfer the…

机器学习 · 计算机科学 2024-10-25 Yinglun Xu , David Zhu , Rohan Gumaste , Gagandeep Singh

Positive unlabeled (PU) learning is useful in various practical situations, where there is a need to learn a classifier for a class of interest from an unlabeled data set, which may contain anomalies as well as samples from unknown classes.…

机器学习 · 计算机科学 2018-08-17 Emanuele Sansone , Francesco G. B. De Natale , Zhi-Hua Zhou

In recent years, multi-label classification has attracted a significant body of research, motivated by real-life applications, such as text classification and medical diagnoses. Although sparsely studied in this context, Learning Classifier…

神经与进化计算 · 计算机科学 2015-12-29 Fani A. Tzima , Miltiadis Allamanis , Alexandros Filotheou , Pericles A. Mitkas

We present a method for training multi-label, massively multi-class image classification models, that is faster and more accurate than supervision via a sigmoid cross-entropy loss (logistic regression). Our method consists in embedding…

计算机视觉与模式识别 · 计算机科学 2016-07-20 François Chollet

This paper describes a hierarchical system that predicts one label at a time for automated student response analysis. For the task, we build a classification binary tree that delays more easily confused labels to later stages using…

计算与语言 · 计算机科学 2015-07-14 Itziar Aldabe , Oier Lopez de Lacalle , Iñigo Lopez-Gazpio , Montse Maritxalar

Multi-label classification is a type of classification task, it is used when there are two or more classes, and the data point we want to predict may belong to none of the classes or all of them at the same time. In the real world, many…

机器学习 · 计算机科学 2021-04-26 Shikun Chen

Using large language models (LLMs) to predict relevance judgments has shown promising results. Most studies treat this task as a distinct research line, e.g., focusing on prompt design for predicting relevance labels given a query and…

信息检索 · 计算机科学 2026-01-09 Chuan Meng , Jiqun Liu , Mohammad Aliannejadi , Fengran Mo , Jeff Dalton , Maarten de Rijke

Current contrastive learning frameworks focus on leveraging a single supervisory signal to learn representations, which limits the efficacy on unseen data and downstream tasks. In this paper, we present a hierarchical multi-label…

计算机视觉与模式识别 · 计算机科学 2022-04-29 Shu Zhang , Ran Xu , Caiming Xiong , Chetan Ramaiah

Relevance judgments are crucial for evaluating information retrieval systems, but traditional human-annotated labels are time-consuming and expensive. As a result, many researchers turn to automatic alternatives to accelerate method…

信息检索 · 计算机科学 2025-07-15 Naghmeh Farzi , Laura Dietz

The binary classification problem has a situation where only biased data are observed in one of the classes. In this paper, we propose a new method to approach the positive and biased negative (PbN) classification problem, which is a weakly…

统计方法学 · 统计学 2025-10-28 Shotaro Watanabe , Hidetoshi Matsui

Multilabel classification is an emergent data mining task with a broad range of real world applications. Learning from imbalanced multilabel data is being deeply studied latterly, and several resampling methods have been proposed in the…

机器学习 · 计算机科学 2018-02-15 Francisco Charte , Antonio J. Rivera , María J. del Jesus , Francisco Herrera

How to effectively approximate real-valued parameters with binary codes plays a central role in neural network binarization. In this work, we reveal an important fact that binarizing different layers has a widely-varied effect on the…

计算机视觉与模式识别 · 计算机科学 2018-02-19 Lixue Zhuang , Yi Xu , Bingbing Ni , Hongteng Xu

We consider the unsupervised learning problem of assigning labels to unlabeled data. A naive approach is to use clustering methods, but this works well only when data is properly clustered and each cluster corresponds to an underlying…

机器学习 · 计算机科学 2013-05-02 Marthinus Christoffel du Plessis , Masashi Sugiyama

Multi-task learning has shown to significantly enhance the performance of multiple related learning tasks in a variety of situations. We present the fused logistic regression, a sparse multi-task learning approach for binary classification.…

机器学习 · 统计学 2013-12-31 Venelin Mitov , Manfred Claassen

Modeling the dependence between outputs is a fundamental challenge in multilabel classification. In this work we show that a generic regularized nonlinearity mapping independent predictions to joint predictions is sufficient to achieve…

机器学习 · 计算机科学 2015-04-22 Nikos Karampatziakis , Paul Mineiro

In this work, we addressed the issue of applying a stochastic classifier and a local, fuzzy confusion matrix under the framework of multi-label classification. We proposed a novel solution to the problem of correcting label pairwise…

机器学习 · 计算机科学 2018-02-08 Pawel Trajdos , Marek Kurzynski

In this paper, a novel extreme learning machine based online multi-label classifier for real-time data streams is proposed. Multi-label classification is one of the actively researched machine learning paradigm that has gained much…

机器学习 · 计算机科学 2016-09-16 Rajasekar Venkatesan , Meng Joo Er , Shiqian Wu , Mahardhika Pratama

For classification models based on neural networks, the maximum predicted class probability is often used as a confidence score. This score rarely predicts well the probability of making a correct prediction and requires a post-processing…

机器学习 · 计算机科学 2024-11-07 Adrien LeCoz , Stéphane Herbin , Faouzi Adjed

We present a new loss function called Distribution-Balanced Loss for the multi-label recognition problems that exhibit long-tailed class distributions. Compared to conventional single-label classification problem, multi-label recognition…

计算机视觉与模式识别 · 计算机科学 2021-12-07 Tong Wu , Qingqiu Huang , Ziwei Liu , Yu Wang , Dahua Lin

Many works demonstrate that deep learning system is vulnerable to adversarial attack. A deep learning system consists of two parts: the deep learning task and the deep model. Nowadays, most existing works investigate the impact of the deep…

机器学习 · 计算机科学 2021-12-03 Keji Han , Yun Li , Xianzhong Long , Yao Ge