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The dynamic nature of open-world scenarios has attracted more attention to class incremental learning (CIL). However, existing CIL methods typically presume the availability of complete ground-truth labels throughout the training process,…

机器学习 · 计算机科学 2024-08-20 Jiaming Liu , Hongyuan Liu , Zhili Qin , Wei Han , Yulu Fan , Qinli Yang , Junming Shao

Existing long-tailed recognition methods, aiming to train class-balanced models from long-tailed data, generally assume the models would be evaluated on the uniform test class distribution. However, practical test class distributions often…

计算机视觉与模式识别 · 计算机科学 2022-10-28 Yifan Zhang , Bryan Hooi , Lanqing Hong , Jiashi Feng

Dialog systems must be capable of incorporating new skills via updates over time in order to reflect new use cases or deployment scenarios. Similarly, developers of such ML-driven systems need to be able to add new training data to an…

计算与语言 · 计算机科学 2022-07-26 Stefan Larson , Kevin Leach

Machine learning methods such as deep neural networks (DNNs), despite their success across different domains, are known to often generate incorrect predictions with high confidence on inputs outside their training distribution. The…

机器学习 · 计算机科学 2022-01-10 Ramneet Kaur , Susmit Jha , Anirban Roy , Sangdon Park , Edgar Dobriban , Oleg Sokolsky , Insup Lee

We introduce a novel task, called Generalized Relation Discovery (GRD), for open-world relation extraction. GRD aims to identify unlabeled instances in existing pre-defined relations or discover novel relations by assigning instances to…

计算与语言 · 计算机科学 2024-01-15 Jiaxin Wang , Lingling Zhang , Jun Liu , Tianlin Guo , Wenjun Wu

The visual world naturally exhibits an imbalance in the number of object or scene instances resulting in a \emph{long-tailed distribution}. This imbalance poses significant challenges for classification models based on deep learning.…

计算机视觉与模式识别 · 计算机科学 2021-11-12 Rahul Vigneswaran , Marc T. Law , Vineeth N. Balasubramanian , Makarand Tapaswi

If 100 people issue the same search query, they may have 100 different goals. While existing work on user-centric AI evaluation highlights the importance of aligning systems with fine-grained user intents, current search evaluation methods…

人机交互 · 计算机科学 2025-09-24 Yoonseo Choi , Eunhye Kim , Hyunwoo Kim , Donghyun Park , Honggu Lee , Jinyoung Kim , Juho Kim

In object detection, the instance count is typically used to define whether a dataset exhibits a long-tail distribution, implicitly assuming that models will underperform on categories with fewer instances. This assumption has led to…

计算机视觉与模式识别 · 计算机科学 2025-02-07 Yanbiao Ma , Wei Dai , Jiayi Chen

The capability of large language models to handle long-context information is crucial across various real-world applications. Existing evaluation methods often rely either on real-world long texts, making it difficult to exclude the…

计算与语言 · 计算机科学 2025-09-18 Mo Li , Songyang Zhang , Taolin Zhang , Haodong Duan , Yunxin Liu , Kai Chen

Taxonomic classification of ecological families, genera, and species underpins biodiversity monitoring and conservation. Existing computer vision methods typically address fine-grained recognition and long-tailed learning in isolation.…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Cheng Yaw Low , Heejoon Koo , Jaewoo Park , Meeyoung Cha

Real-world social events typically exhibit a severe class-imbalance distribution, which makes the trained detection model encounter a serious generalization challenge. Most studies solve this problem from the frequency perspective and…

人工智能 · 计算机科学 2023-10-31 Jiaqian Ren , Hao Peng , Lei Jiang , Zhiwei Liu , Jia Wu , Zhengtao Yu , Philip S. Yu

\textit{Multiple Instance Learning} (MIL) is concerned with learning from bags of instances, where only bag labels are given and instance labels are unknown. Existent approaches in this field were mainly designed for the bag-level label…

机器学习 · 计算机科学 2019-05-30 Minlong Peng , Qi Zhang

With the rapid advancement of vision generation models, the potential security risks stemming from synthetic visual content have garnered increasing attention, posing significant challenges for AI-generated image detection. Existing methods…

计算机视觉与模式识别 · 计算机科学 2025-11-18 Xinghan Li , Yue Yu , Xue Song , Haijun Shan , Jingjing Chen

The last decade has witnessed a prosperous development of computational methods and dataset curation for AI-aided drug discovery (AIDD). However, real-world pharmaceutical datasets often exhibit highly imbalanced distribution, which is…

Deep learning algorithms can fare poorly when the training dataset suffers from heavy class-imbalance but the testing criterion requires good generalization on less frequent classes. We design two novel methods to improve performance in…

机器学习 · 计算机科学 2019-10-29 Kaidi Cao , Colin Wei , Adrien Gaidon , Nikos Arechiga , Tengyu Ma

We tackle the novel class discovery in point cloud segmentation, which discovers novel classes based on the semantic knowledge of seen classes. Existing work proposes an online point-wise clustering method with a simplified equal class-size…

计算机视觉与模式识别 · 计算机科学 2024-07-18 Ruijie Xu , Chuyu Zhang , Hui Ren , Xuming He

Active learning aims to optimize the dataset annotation process when resources are constrained. Most existing methods are designed for balanced datasets. Their practical applicability is limited by the fact that a majority of real-life…

机器学习 · 计算机科学 2022-02-02 Umang Aggarwal , Adrian Popescu , Céline Hudelot

Object frequency in the real world often follows a power law, leading to a mismatch between datasets with long-tailed class distributions seen by a machine learning model and our expectation of the model to perform well on all classes. We…

计算机视觉与模式识别 · 计算机科学 2020-03-25 Muhammad Abdullah Jamal , Matthew Brown , Ming-Hsuan Yang , Liqiang Wang , Boqing Gong

Deep neural networks are increasingly used in a wide range of technologies and services, but remain highly susceptible to out-of-distribution (OOD) samples, that is, drawn from a different distribution than the original training set. A…

机器学习 · 计算机科学 2024-04-17 Pietro Recalcati , Fabio Garcea , Luca Piano , Fabrizio Lamberti , Lia Morra

With the rapid advancements in autonomous driving, accurately predicting pedestrian behavior has become essential for ensuring safety in complex and unpredictable traffic conditions. The growing interest in this challenge highlights the…

计算机视觉与模式识别 · 计算机科学 2025-06-30 Ruthvik Bokkasam , Shankar Gangisetty , A. H. Abdul Hafez , C. V. Jawahar