Imbalanced Classification

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12 papers in the last four weeks, up 100% on the four weeks before. 0.1% of all new papers.

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  1. Usefulness of Quantile-Aware Diffusion Modeling for Highly Imbalanced Tabular Data

    Oct 5, 2026Abu Talha, Peng Liu, Souradyuti PaulImbalanced Classification

    Indian Institute of Technology Bhilai, Durg, C.G. 491002, India · Loughborough University, Loughborough, LE11 3TU, United Kingdom

  2. Fast Convergence through Distributed Augmentation for Class-Imbalanced Federated Learning

    Oct 4, 2026Arathi Nair M, J. Harshan, Anwitaman DattaImbalanced Classification

    Amar Nath and Shashi Khosla School of Information Technology, Indian Institute of Technology Delhi, India · Department of Electrical Engineering, Indian Institute of Technology Delhi, India · College of Computing and Data Science, Nanyang Technological University, Singapore

  3. From Unity Simulation to Diffusion-Based Augmentation: Quantifying Dataset Balance for Robust Object Detection

    Sep 29, 2026Mohamed Benkedadra, Aissa Saoudi, Maxime Gloesener +2Object DetectionGenerative Adversarial Network

    ILIA, Université de Mons Mons, Belgium · Université Polytechnique Hauts-de-France Valenciennes, France · DeepILIA, ILIA, Université de Mons Mons, Belgium +1

  4. CarveMix-RC: Addressing Rare-Class Imbalance Through Lesion-Aware Synthetic Augmentation for Brain Metastasis Segmentation

    Sep 28, 2026Md Shibly Sadique, Md Fayaz Bin Hossen, Michael L. Evans +4Brain Tumor SegmentationLesion Segmentation

    Vision Lab, Department of Electrical and Computer Engineering, Old Dominion University, Norfolk, VA 23529, USA · Interdisciplinary Schools, Old Dominion University, Norfolk, VA 23529, USA

  5. Fed-ReMasker: Federated Tabular Imputation under Feature-Level Missingness

    Sep 23, 2026Ioannis Papathanail, Rooholla Poursoleymani, Lubnaa Abdur Rahman +1ImputationFederated Learning

    ARTORG Center for Biomedical Engineering Research University of Bern, Bern, Switzerland · Graduate School for Cellular and Biomedical Sciences University of Bern, Bern, Switzerland

  6. CRISP: Scalable Importance-Stratified Coresets for Imbalanced Tabular Learning

    Sep 22, 2026Hardhik Mohanty, Indrayana Rustandi, Mohamadreza SheibaniImbalanced ClassificationGeometry-Aware Uncertainty Coresets

    University of Southern California Los Angeles, California, USA · Coinbase San Francisco, California, USA

  7. Exposing Blind Spots in Deep Imbalanced Regression Evaluation

    Sep 21, 2026Noah C. Puetz, Jens U. Brandt, Marc Hilbert +3Imbalanced ClassificationMean Squared Error

    TH Köln · Leiden University · Toyota Racing

  8. Density-Ratio Rescoring for Imbalanced Classification Using Raking Duals and Classifier Scores

    Sep 20, 2026Dongha Kim, Seunghwan ParkImbalanced ClassificationRarity

    School of Mathematics, Statistics and Data Science, Sungshin Women’s University, 2, Bomun-ro 34da-gil, Seongbuk-gu, Seoul, 02844, Republic of Korea · Department of Information Statistics, Kangwon National University, 1, Kangwondaehak-gil, Chuncheon-si, Gangwon-do, 24341, Republic of Korea

  9. Bounded Adjustment with Reliability-Guided Embedding for Imbalanced Learning with Noisy Labels

    Sep 14, 2026Mushir Akhtar, Akarsh J., M. Tanveer +1Noisy LabelsImbalanced Classification

    Department of Mathematics, Indian Institute of Technology Indore, India · Department of Electrical Engineering, Indian Institute of Technology Indore, India

  10. Mini-batch Sampling Strategies for Long-Tailed Image Classification: An Empirical Study on CIFAR-100-LT

    Sep 14, 2026Siyu YuanImbalanced ClassificationOversampling

    School of Mathematics, University of Bristol

  11. GRIN+: Towards Fast Yet Effective Machine Unlearning for Imbalanced Medical Data

    Sep 14, 2026Minghui Huang, Junxiao WangMachine UnlearningImbalanced Classification

    Guangzhou University, China

  12. Impute-EM: Native Mixed-State Diffusion Models for Heterogeneous Data Imputation

    Sep 14, 2026Sergei Kholkin, Kirill Sokolov, Dmitry Baranchuk +2ImputationExpectation-Maximization

    Applied AI Institute · Applied AI Institute, Moscow State University · Yandex Research +1

  13. Prevalence calibration as shortcut mitigation

    Sep 7, 2026Mohamed Amine Kina, Eike PetersenShortcut LearningPrevalence

    Universität Bremen, Bremen, Germany · Fraunhofer Institute for Digital Medicine MEVIS, Bremen, Germany

  14. D-FROST: Decentralized Federated pRompt-tuning via Optimal tranSporT for Non-IID and Imbalanced Data

    Sep 1, 2026Quan Minh Nguyen, Hoang M. Ngo, Trong Nghia Hoang +1Soft Prompt TuningBalanced Learning

    University of Florida, FL, USA · Washington State University, WA, USA

  15. Local Reference Geometry Residual Augmentation for Imbalanced Time Series Classification

    Aug 31, 2026Chuanhang Qiu, Yanran Xu, Yue Wang +1Imbalanced ClassificationResidual Learning

    School of Electronics and Computer Science University of Southampton Southampton, United Kingdom

  16. CLEAR: Class-wise Expert Aggregation with Structured Sampling for Long-Tailed Classification

    Aug 11, 2026Gawon LimImbalanced ClassificationEnsemble

    School of Information Sciences University of Illinois Urbana-Champaign

  17. Unsupervised Domain Adaptation for Multitask Image Analysis in Realistic Context with Extreme Label Shift; Application to the CTAO first Large Sized Telescope

    Aug 10, 2026Michaël Dell'aiera, Thomas Vuillaume, Alexandre BenoitDomain AdaptationImbalanced Classification

    CNRS LAPP, Annecy, 74940, France · Université Savoie Mont Blanc LISTIC, Annecy, 74940, France

  18. FedTVD: Balancing Data Quality and Quantity for Robust Federated Learning

    Aug 10, 2026Radwan Selo, Majid Kundroo, Taehong KimFederated LearningFedavg

    School of Information and Communication Engineering, Chungbuk National University, Cheongju, 28644, Republic of Korea

  19. SoftMCC: An MCC-Brier Calibration Bridge for Threshold-Free Model Selection under Class Imbalance

    Aug 10, 2026Özkan CanayModel SelectionImbalanced Classification

    Department of Information Systems and Technologies Faculty of Computer and Information Sciences Sakarya University, Esentepe Campus 54050 Serdivan, Sakarya, Türkiye

  20. Ensemble of Unsupervised Deep Learning for Clustering Imbalanced Tabular Data

    Jul 31, 2026Pulock Das, Yina Hou, Md. Kamrozzaman Bhuiyan +1Imbalanced ClassificationClustering

    Department of Computer Science Tennessee State University Nashville, TN, USA · Enosis Solutions Dhaka, Bangladesh · Department of Computer Science North Carolina A&T State University Greensboro, NC, USA

  21. Beyond Static Costs: Learning-Dynamics Aware Loss Functions for Long-Tailed Classification

    Jul 28, 2026Varad Shinde, Nikhil Kumar Shrey, Magesh Rajasekaran +5Imbalanced ClassificationLoss Function

  22. A Model for Imbalanced Label Aggregation: A Focus on Minority-Class Detection

    Jul 27, 2026Gabriel Singer, Samuel Gruffaz, Olivier Vo Van +2Imbalanced ClassificationMinority

    SNCF, Paris, France · Université Paris-Saclay, ENS Paris-Saclay, Centre Borelli, France · 2Tampere University, Finland, Biostatistics group

  23. Generalised Balanced Softmax: A Finite-Data Perspective on Logit Adjustment for Long-Tailed Recognition

    Jul 24, 2026Yi-Hang Zhu, Rajeev Raman, Shiqi Su +4Imbalanced ClassificationGumbel-Softmax Relaxation

    School of Computing and Mathematical Sciences, University of Leicester, Leicester, LE1 7RH, UK · Department of Physics and Astronomy, University of Leicester, Leicester, LE1 7RH, UK · Scientific Computing, Rutherford Appleton Laboratory, Science and Technology Facilities Council, Didcot, OX11 0QX, UK +2

  24. Synthetic minority data is redundant or invalid: a data-dependent validity theory and a de-biased test

    Jul 22, 2026Ahmad B. Hassanat, Ahmad S. Tarawneh, Ghada A. AltarawnehOversamplingImbalanced Classification

    Faculty of Information Technology, Mutah University, Karak, Jordan · Department of Accounting, Mutah University, Karak, Jordan

  25. Instance Hardness-Based Relevance for Imbalanced Regression

    Jul 22, 2026Vitor M. Leitao, Juscimara G. Avelino, George D. C. Cavalcanti +1Imbalanced ClassificationRare Events

    Centro de Inform´atica, Universidade Federal de Pernambuco, Recife, Brazil · ´Ecole de Technologie Sup´erieure, University of Quebec, Montreal, Canada

  26. Cross-Dataset Generalization in Breast MRI Tumor Classification via Class-Wise Dataset Mixing

    Jul 21, 2026Mohammad Ali Dadrast, Hamid UsefiBrain Tumor ClassificationCross-Dataset Benchmark

    Data Science Program Memorial University of Newfoundland St. John’s, Canada · Department of Mathematics and Statistics Memorial University of Newfoundland St. John’s, Canada

  27. Benchmarking NACTI Species Recognition in Long-Tailed Regimes

    Jul 20, 2026Zehua Liu, Tilo BurghardtSpecies IdentificationRoadside Cameras

    School of Computer Science, University of Bristol, MVB Woodland Rd, BS8 1UB, Bristol, UK

  28. DADIR: Density-Aware Data-level Imbalanced Regression Framework

    Jul 19, 2026Shermin Shahbazi, Hossein Mohammadi, Mohsen AfsharchiImbalanced ClassificationConditional Variational Autoencoder

    Department of Computer Engineering, University of Zanjan, Zanjan, Iran.

  29. Cascading versus Joint Modeling for Hierarchical Offensive Language Detection

    Jul 18, 2026Ruixing Ren, Junhui Zhao, Xiaoke SunMultilingual Language ModelsMulti--Task Learning

    School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, China · National Computer Network Emergency Response Technical Team/Coordination Center of China (CNCERT/CC), Beijing 100029, China

  30. K-IPO: Kendall-constrained Importance Preserving Oversampling for Imbalanced Tabular Data

    Jul 17, 2026Marios Tyrovolas, Argiris Sofotasios, Dimitris Metaxakis +4OversamplingImbalanced Classification

    Department of Informatics and Telecommunications, University of Ioannina, Arta, Greece · Industrial Systems Institute, Athena Research Center, Patras, Greece · Archimedes Unit, Athena Research Center, Athens, Greece +3

  31. NodeImport: Imbalanced Node Classification with Node Importance Assessment

    Jul 15, 2026Nan Chen, Zemin Liu, Bryan Hooi +3Imbalanced ClassificationGraph Neural Networks

    Johns Hopkins University Baltimore, Maryland, USA · Zhejiang University Hangzhou, Zhejiang, China · National University of Singapore Singapore, Singapore +1

  32. Semantic Pareto-DQN: A Multi-Objective Reinforcement Learning Framework for Financial Anomaly Detection

    Jul 10, 2026Cláudio Lúcio do Val Lopes, Lucca Machado da SilvaFraud DetectionImbalanced Classification

    A3Data

  33. Reliability-Aware Ensemble Classification Under Class Imbalance: A Calibration Study on Liquid-Based Cervical Cytology

    Jul 10, 2026Nisreen Albzour, Sarah S. LamCancer DetectionImbalanced Classification

    School of Systems Science and Industrial Engineering, Binghamton University, Binghamton, NY 13902, USA

  34. RUBRIC: Realism--Utility Balanced Ranking for Imbalanced Classification

    Jul 10, 2026Yanxuan Yu, Dong liu, Renata Borovica-Gajic +1Imbalanced ClassificationClass Imbalance

    Columbia University · University of California, Los Angeles · University of Melbourne

  35. C-GAP: Class-Aware and Online Prompting Improves Vision-Language Models on Imbalanced Classes

    Jul 10, 2026Francis Fernandez, Arash Jahangiri, Salimeh SekehOpen-Vocabulary Object DetectionOpen-Vocabulary

    San Diego State University

  36. Pattern-Aware Graph Neural Networks for Handling Missing Data

    Jul 9, 2026Minett Tran, Taehee JeongMissing DataGraph Neural Networks

    San Jose State University

  37. Who Gets Missed in the Tail? Thresholded Subgroup Underdiagnosis in Long-Tailed Chest X-ray Classification

    Jul 4, 2026Ha-Hieu Pham, Hai-Dang Nguyen, Dang P. M. Cao +5Chest X-RaySubgroups

    University of Science, Ho Chi Minh City, Vietnam · Vietnam National University, Ho Chi Minh City, Vietnam · VinUni-Illinois Smart Health Center, VinUniversity, Hanoi, Vietnam +3

  38. MARVEL: Margin-Aware Robust von Mises-Fischer Expert Learning for Long-Tailed Out-of-Distribution Detection

    Jul 2, 2026A. S. Anudeep, Vaanathi SundaresanOut-Of-Distribution DetectionOut-Of-Distribution

    Department of Computational and Data Sciences, Indian Institute of Science

  39. Class-Grouped Normalized Momentum and Faster Hyperparameter Exploration to Tackle Class Imbalance in Federated Learning

    Jul 1, 2026Haemin Park, Diego Klabjan, Martin W. Braun +2Federated LearningImbalanced Classification

    Department of Industrial Engineering & Management Sciences, Northwestern University, Evanston, IL, USA · Intel Corporation, Chandler, AZ, USA

  40. TRCGL-Net: A Long-Tailed Multi-Label Chest X-Ray Classification Framework with Generative Data Augmentation and Label Co-Occurrence Modeling

    Jul 1, 2026Tong Shao, Hongshun Ling, Li Zhang +4Chest X-RayMedical Image Classification

    School of Biomedical Engineering, South-Central Minzu University, Wuhan 430074, China

  41. K-Inverse-RFM: A Modified RFM that Bridges the Gap to Neural Networks for Data-Corrupted Mathematical Tasks

    Jul 1, 2026Gil PasternakImbalanced ClassificationNeural Network

    UNIVERSITY OF CALIFORNIA SAN DIEGO

  42. A time-series classification framework for individual-level absenteeism prediction under severe class imbalance

    Jun 30, 2026Kwong Ho Li, Matthew Roughan, Wathsala KarunarathneTime-Series ClassificationCnn-Lstm

    School of Mathematical Sciences, Adelaide University, SA 5000, Australia

  43. CW-B: Class Weighted Boosting Framework for Imbalance Resilient Multi Class Cardiac Phenotyping

    Jun 29, 2026Sijia Li, Xiaoyu Tan, Chen Zhan +3Imbalanced ClassificationXgboost Model

    School of Electronic and Electrical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China · Tencent YouTu Lab, Shanghai 200232, China · Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China +1

  44. The Hidden Cost of Resampling: How Imbalance Correction Degrades Probability Calibration in Tree Ensembles

    Jun 29, 2026Zewen LiuOversamplingImbalanced Classification

    Qilu Institute of Technology · Tai’an, Shandong, China

  45. FedReLa: Imbalanced Federated Learning via Re-Labeling

    Jun 24, 2026Guangzheng Hu, Patricia Menéndez, Feng Liu +3Federated LearningImbalanced Classification

    School of Mathematics and Statistics, University of Melbourne, Victoria, Australia · School of Computing and Information Systems, University of Melbourne, Victoria, Australia · School of Statistics and Data Science, LPMC, KLMDASR, and LEBPS, Nankai University

  46. QC-SMOTE: Quality-Controlled SMOTE for Imbalanced Classification

    Jun 23, 2026Parth Upman, Shreyank N GowdaOversamplingImbalanced Classification

    School of Computer Science, University of Nottingham, Jubilee Campus, Wollaton Road, Nottingham, NG8 1BB, United Kingdom

  47. Learning to Annotate Delayed and False AEB Events: A Practical System for Extreme Class Imbalance and Asymmetric Label Noise

    Jun 17, 2026Mengxiang Hao, Xin Jiang, Xinghao Huang +10Emergency Braking Intensity PredictionNoisy Labels

    All authors are with Li Auto, China.

  48. The Circumplex Degeneracy Behind the Rare-Class Limit in Affect Recognition

    Jun 14, 2026Van Thong Huynh, Hong Hai Nguyen, Soo-Hyung KimRarityImbalanced Classification

    Faculty of CSE, Ho Chi Minh City University of Technology (HCMUT), VNUHCM, Vietnam · Dept. of AI, FPT University, Vietnam · Dept. of AI Convergence, Chonnam National University, South Korea

  49. Evaluation of AutoML Frameworks for IDS under Imbalanced Data Conditions of the NSL-KDD Dataset

    Jun 10, 2026Wiliane Carolina Silva, Evandro César Vilas Boas, Felipe A. P. de FigueiredoImbalanced ClassificationIntrusion Detection

    Cybersecurity and Artificial Intelligence Laboratory (CS&I Lab) of the National Institute of Telecommunications (Inatel), Santa Rita do Sapucaí, Brazil · Wireless and Artificial Intelligence Laboratory (WAI Lab) of the National Institute of Telecommunications (Inatel), Santa Rita do Sapucaí, Brazil

  50. RCAP: Robust, Class-Aware, Probabilistic Dynamic Dataset Pruning

    Jun 10, 2026Atif Hassan, Swanand Khare, Jiaul H. PaikImbalanced ClassificationLoss Function

    Department of Artificial Intelligence, IIT Kharagpur, Kharagpur, West Bengal, India · Department of Mathematics, IIT Kharagpur, Kharagpur, West Bengal, India

  51. Multi-Level Analyzation of Imbalance to Resolve Non-IID-Ness in Federated Learning

    Jun 8, 2026Haengbok Chung, Jae Sung LeeFederated LearningImbalanced Classification

    Interdisciplinary Program in Artificial Intelligence, Seoul National University, Republic of Korea · Department of Nuclear Medicine, Seoul National University College of Medicine, Republic of Korea · Brightonix Imaging Inc. Seoul, Republic of Korea

  52. nCMD: Benign-Anchored Feature Selection for Imbalanced Network Intrusion Detection

    Jun 7, 2026Abu Fuad Ahmad, Istiaque AhmedIntrusion DetectionFeature Selection

    Department of Computer Science · New Mexico State University · Las Cruces, New Mexico, USA +3

  53. LOTTERY: Learning from Reference-Only Samples in Two-Sample Testing under Size Asymmetry

    Jun 7, 2026Xunye Tian, Zhijian Zhou, Liuhua Peng +1Two-Sample TestingImbalanced Classification

    University of Melbourne · Maincode

  54. Class-Specific Branch Attention for Mitigating Gradient Interference under Class Imbalance

    Jun 4, 2026Arush Singhal, Umang SoniImbalanced ClassificationClass Imbalance

    aThapar Institute of Engineering and Technology, Patiala, India · bNetaji Subhash University of Technology, New Delhi, India

  55. StrokeTimer: Robust Representation Learning for Ischemic Stroke Onset-Time Estimation from Non-contrast CT

    Jun 3, 2026Weiru Wang, Susanne G. H. Olthuis, Elizaveta Lavrova +4StrokeLongitudinal Imaging

    Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands · Graduate School of Life Sciences, Utrecht University, Utrecht, The Netherlands · Department of Neurology, Maastricht University Medical Centre+, Maastricht, The Netherlands +3

  56. FADRW: A Feature-Aware Modulated and Dynamically Reweighted Loss for Few-Shot Linguistic Steganalysis

    Jun 3, 2026Shuo Liu, Xianghong Lin, Yukun Wei +1SteganographyLoss Function

    International School, Beijing University of Posts and Telecommunications, Beijing 100876, China · School of Cyberspace Security, Beijing University of Posts and Telecommunications, Beijing 100876, China

  57. Mitigating Spurious Correlations with Memorization-Guided Dataset De-Biasing

    Jun 1, 2026Arda Fazla, Abolfazl HashemiSpurious CorrelationsSelection Bias

    School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, USA.

  58. Hybrid Imbalanced Regression Through Unified Data-Level and Algorithm-Level Balancing

    May 31, 2026Shermin Shahbazi, Hossein Mohammadi, Mohsen AfsharchiImbalanced ClassificationBalance

    Department of Computer Engineering, University of Zanjan, Zanjan, Iran

  59. Active Learning with Foundation Model Priors: Efficient Learning under Class Imbalance

    May 30, 2026Jiancheng Zhang, Meiqing Li, Qi Zhang +1Pool-Based Active LearningActive Learning

    University of California, Riverside · 2Carnegie Mellon University · 3Worcester Polytechnic Institute

  60. DAMEL: Dual-Axis Multi-Expert Learning for Class-Imbalanced Learning

    May 28, 2026Hyuck Lee, Taemin Park, Heeyoung KimImbalanced ClassificationModel Weights

    AI Research, Krafton, Teheran-ro 231, Centerfield EAST, Gangnam-gu, Seoul, 06142, Republic of Korea · Department of Industrial and Systems Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea