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Real-world data often follow a long-tailed distribution with a high imbalance in the number of samples between classes. The problem with training from imbalanced data is that some background features, common to all classes, can be…

计算机视觉与模式识别 · 计算机科学 2024-06-05 Sanglee Park , Seung-won Hwang , Jungmin So

Despite the increasing prevalence of large language models (LLMs), we still have a limited understanding of how their representational spaces are structured. This limits our ability to interpret how and what they learn or relate them to…

Long-tailed recognition with imbalanced class distribution naturally emerges in practical machine learning applications. Existing methods such as data reweighing, resampling, and supervised contrastive learning enforce the class balance…

计算机视觉与模式识别 · 计算机科学 2023-09-12 Chengkai Hou , Jieyu Zhang , Haonan Wang , Tianyi Zhou

Recent contrastive learning methods have shown to be effective in various tasks, learning generalizable representations invariant to data augmentation thereby leading to state of the art performances. Regarding the multifaceted nature of…

机器学习 · 计算机科学 2022-05-27 MinGyu Choi , Wonseok Shin , Yijingxiu Lu , Sun Kim

The Information Bottleneck (IB) objective uses information theory to formulate a task-performance versus robustness trade-off. It has been successfully applied in the standard discriminative classification setting. We pose the question…

机器学习 · 计算机科学 2021-01-13 Lynton Ardizzone , Radek Mackowiak , Carsten Rother , Ullrich Köthe

Concept Bottleneck Models (CBMs) aim to deliver interpretable predictions by routing decisions through a human-understandable concept layer, yet they often suffer reduced accuracy and concept leakage that undermines faithfulness. We…

机器学习 · 计算机科学 2026-02-17 Karim Galliamov , Syed M Ahsan Kazmi , Adil Khan , Adín Ramírez Rivera

Normalization is fundamental to deep learning, but existing approaches such as BatchNorm, LayerNorm, and RMSNorm are variance-centric by enforcing zero mean and unit variance, stabilizing training without controlling how representations…

机器学习 · 计算机科学 2026-01-30 Xiandong Zou , Jia Li , Xiaotong Yuan , Pan Zhou

Bidirectional language models have better context understanding and perform better than unidirectional models on natural language understanding tasks, yet the theoretical reasons behind this advantage remain unclear. In this work, we…

计算与语言 · 计算机科学 2025-10-10 Md Kowsher , Nusrat Jahan Prottasha , Shiyun Xu , Shetu Mohanto , Ozlem Garibay , Niloofar Yousefi , Chen Chen

Image captioning, a popular topic in computer vision, has achieved substantial progress in recent years. However, the distinctiveness of natural descriptions is often overlooked in previous work. It is closely related to the quality of…

计算机视觉与模式识别 · 计算机科学 2017-10-10 Bo Dai , Dahua Lin

Information Bottleneck (IB) is a technique to extract information about one target random variable through another relevant random variable. This technique has garnered significant interest due to its broad applications in information…

信息论 · 计算机科学 2024-04-09 Lingyi Chen , Shitong Wu , Jiachuan Ye , Huihui Wu , Wenyi Zhang , Hao Wu

Information bottleneck is an information-theoretic principle of representation learning that aims to learn a maximally compressed representation that preserves as much information about labels as possible. Under this principle, two…

信息论 · 计算机科学 2023-11-08 Yuyan Ni , Yanyan Lan , Ao Liu , Zhiming Ma

Deep Image Manipulation Localization (IML) models suffer from training data insufficiency and thus heavily rely on pre-training. We argue that contrastive learning is more suitable to tackle the data insufficiency problem for IML. Crafting…

计算机视觉与模式识别 · 计算机科学 2023-09-28 Jizhe Zhou , Xiaochen Ma , Xia Du , Ahmed Y. Alhammadi , Wentao Feng

For anomaly detection (AD), early approaches often train separate models for individual classes, yielding high performance but posing challenges in scalability and resource management. Recent efforts have shifted toward training a single…

计算机视觉与模式识别 · 计算机科学 2025-07-18 Lei Fan , Junjie Huang , Donglin Di , Anyang Su , Tianyou Song , Maurice Pagnucco , Yang Song

The recently proposed Multilinear Compressive Learning (MCL) framework combines Multilinear Compressive Sensing and Machine Learning into an end-to-end system that takes into account the multidimensional structure of the signals when…

计算机视觉与模式识别 · 计算机科学 2020-02-19 Dat Thanh Tran , Moncef Gabbouj , Alexandros Iosifidis

Contrastive Learning (CL) enhances the training of sequential recommendation (SR) models through informative self-supervision signals. Existing methods often rely on data augmentation strategies to create positive samples and promote…

信息检索 · 计算机科学 2026-04-06 Zhikai Wang , Yanyan Shen , Zexi Zhang , Li He , Yichun Li , Hao Gu , Yinghua Zhang

The enhancement of unsupervised learning of sentence representations has been significantly achieved by the utility of contrastive learning. This approach clusters the augmented positive instance with the anchor instance to create a desired…

计算与语言 · 计算机科学 2023-10-11 Qingfa Xiao , Shuangyin Li , Lei Chen

Accurately modeling users' evolving preferences from sequential interactions remains a central challenge in recommender systems. Recent studies emphasize the importance of capturing multiple latent intents underlying user behaviors.…

信息检索 · 计算机科学 2026-04-21 Shanfan Zhang , Yongyi Lin , Yuan Rao

Self-supervised learning (SSL) has recently achieved great success in mining the user-item interactions for collaborative filtering. As a major paradigm, contrastive learning (CL) based SSL helps address data sparsity in Web platforms by…

信息检索 · 计算机科学 2024-02-20 Dan Zhang , Yangliao Geng , Wenwen Gong , Zhongang Qi , Zhiyu Chen , Xing Tang , Ying Shan , Yuxiao Dong , Jie Tang

Contrastive learning has demonstrated promising potential in recommender systems. Existing methods typically construct sparser views by randomly perturbing the original interaction graph, as they have no idea about the authentic user…

信息检索 · 计算机科学 2025-12-19 Xufeng Liang , Zhida Qin , Chong Zhang , Tianyu Huang , Gangyi Ding

Cross-modal medical image-report retrieval task plays a significant role in clinical diagnosis and various medical generative tasks. Eliminating heterogeneity between different modalities to enhance semantic consistency is the key challenge…

计算机视觉与模式识别 · 计算机科学 2025-05-21 Zeqiang Wei , Kai Jin , Xiuzhuang Zhou