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Label Distribution Learning (LDL) is a novel machine learning paradigm that addresses the problem of label ambiguity and has found widespread applications. Obtaining complete label distributions in real-world scenarios is challenging, which…

机器学习 · 计算机科学 2024-10-18 Zhiqiang Kou , Haoyuan Xuan , Jing Wang , Yuheng Jia , Xin Geng

Deep neural networks (DNNs) have achieved significant success in various applications with large-scale and balanced data. However, data in real-world visual recognition are usually long-tailed, bringing challenges to efficient training and…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Yifan Lan , Xin Cai , Jun Cheng , Shan Tan

Breaking long documents into smaller segments is a fundamental challenge in information retrieval. Whether for search engines, question-answering systems, or retrieval-augmented generation (RAG), effective segmentation determines how well…

信息检索 · 计算机科学 2026-02-17 Christos Koutsiaris

Novel Categories Discovery (NCD) facilitates learning from a partially annotated label space and enables deep learning (DL) models to operate in an open-world setting by identifying and differentiating instances of novel classes based on…

计算机视觉与模式识别 · 计算机科学 2023-04-18 Zahid Hasan , Masud Ahmed , Abu Zaher Md Faridee , Sanjay Purushotham , Heesung Kwon , Hyungtae Lee , Nirmalya Roy

Many practical medical imaging scenarios include categories that are under-represented but still crucial. The relevance of image recognition models to real-world applications lies in their ability to generalize to these rare classes as well…

计算机视觉与模式识别 · 计算机科学 2025-05-22 Daniya Najiha A. Kareem , Jean Lahoud , Mustansar Fiaz , Amandeep Kumar , Hisham Cholakkal

In the context of high usability in single-class anomaly detection models, recent academic research has become concerned about the more complex multi-class anomaly detection. Although several papers have designed unified models for this…

计算机视觉与模式识别 · 计算机科学 2024-03-22 Xi Jiang , Ying Chen , Qiang Nie , Jianlin Liu , Yong Liu , Chengjie Wang , Feng Zheng

Anomaly detection is crucial in industrial applications for identifying rare and unseen patterns to ensure system reliability. Traditional models, trained on a single class of normal data, struggle with real-world distributions where normal…

机器学习 · 统计学 2026-01-07 Jungi Lee , Jungkwon Kim , Chi Zhang , Sangmin Kim , Kwangsun Yoo , Seok-Joo Byun

Discovering novel concepts in unlabelled datasets and in a continuous manner is an important desideratum of lifelong learners. In the literature such problems have been partially addressed under very restricted settings, where novel classes…

计算机视觉与模式识别 · 计算机科学 2024-08-26 Mingxuan Liu , Subhankar Roy , Zhun Zhong , Nicu Sebe , Elisa Ricci

In medical real-world study (RWS), how to fully utilize the fragmentary and scarce information in model training to generate the solid diagnosis results is a challenging task. In this work, we introduce a novel multi-instance neural…

机器学习 · 计算机科学 2019-07-04 Zeyuan Wang , Josiah Poon , Simon Poon

In this paper, we develop a new criterion, "insufficiently justified disparate impact" (IJDI), for assessing whether recommendations (binarized predictions) made by an algorithmic decision support tool are fair. Our novel, utility-based…

机器学习 · 计算机科学 2023-06-21 Neil Menghani , Edward McFowland , Daniel B. Neill

Unlabeled streaming data are usually collected to describe dynamic systems, where concept drift detection is a vital prerequisite to understanding the evolution of systems. However, the drifting concepts are usually imbalanced in most real…

机器学习 · 计算机科学 2026-03-10 Yiqun Zhang , Zhanpei Huang , Mingjie Zhao , Chuyao Zhang , Yang Lu , Yuzhu Ji , Fangqing Gu , An Zeng

Novel Class Discovery (NCD) is the problem of trying to discover novel classes in an unlabeled set, given a labeled set of different but related classes. The majority of NCD methods proposed so far only deal with image data, despite tabular…

Natural data are often long-tail distributed over semantic classes. Existing recognition methods tackle this imbalanced classification by placing more emphasis on the tail data, through class re-balancing/re-weighting or ensembling over…

计算机视觉与模式识别 · 计算机科学 2022-05-03 Xudong Wang , Long Lian , Zhongqi Miao , Ziwei Liu , Stella X. Yu

Conventional knowledge distillation, designed for model compression, fails on long-tailed distributions because the teacher model tends to be biased toward head classes and provides limited supervision for tail classes. We propose…

计算机视觉与模式识别 · 计算机科学 2026-03-02 Seonghak Kim

Real-world data usually present long-tailed distributions. Training on imbalanced data tends to render neural networks perform well on head classes while much worse on tail classes. The severe sparseness of training instances for the tail…

机器学习 · 计算机科学 2021-11-10 Chaozheng Wang , Shuzheng Gao , Cuiyun Gao , Pengyun Wang , Wenjie Pei , Lujia Pan , Zenglin Xu

Despite the good results that have been achieved in unimodal segmentation, the inherent limitations of individual data increase the difficulty of achieving breakthroughs in performance. For that reason, multi-modal learning is increasingly…

图像与视频处理 · 电气工程与系统科学 2024-04-16 Yameng Wang , Yi Wan , Yongjun Zhang , Bin Zhang , Zhi Gao

While several datasets for autonomous navigation have become available in recent years, they tend to focus on structured driving environments. This usually corresponds to well-delineated infrastructure such as lanes, a small number of…

计算机视觉与模式识别 · 计算机科学 2018-11-27 Girish Varma , Anbumani Subramanian , Anoop Namboodiri , Manmohan Chandraker , C V Jawahar

Most existing methods that cope with noisy labels usually assume that the class distributions are well balanced, which has insufficient capacity to deal with the practical scenarios where training samples have imbalanced distributions. To…

计算机视觉与模式识别 · 计算机科学 2022-09-27 Chaowei Fang , Lechao Cheng , Huiyan Qi , Dingwen Zhang

In this paper, we tackle the problem of novel visual category discovery, i.e., grouping unlabelled images from new classes into different semantic partitions by leveraging a labelled dataset that contains images from other different but…

计算机视觉与模式识别 · 计算机科学 2022-01-04 Bingchen Zhao , Kai Han

We present a novel clustering objective that learns a neural network classifier from scratch, given only unlabelled data samples. The model discovers clusters that accurately match semantic classes, achieving state-of-the-art results in…

计算机视觉与模式识别 · 计算机科学 2019-08-23 Xu Ji , João F. Henriques , Andrea Vedaldi