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Neural networks trained on real-world datasets with long-tailed label distributions are biased towards frequent classes and perform poorly on infrequent classes. The imbalance in the ratio of positive and negative samples for each class…

计算机视觉与模式识别 · 计算机科学 2021-05-25 Kevin Duarte , Yogesh S. Rawat , Mubarak Shah

This paper introduces a two-stage framework designed to enhance long-tail class incremental learning, enabling the model to progressively learn new classes, while mitigating catastrophic forgetting in the context of long-tailed data…

计算机视觉与模式识别 · 计算机科学 2023-11-03 Jayateja Kalla , Soma Biswas

The rapid growth in feature dimension may introduce implicit associations between features and labels in multi-label datasets, making the relationships between features and labels increasingly complex. Moreover, existing methods often adopt…

机器学习 · 计算机科学 2025-05-30 Wanfu Gao , Jun Gao , Qingqi Han , Hanlin Pan , Kunpeng Liu

Text classification, a core component of task-oriented dialogue systems, attracts continuous research from both the research and industry community, and has resulted in tremendous progress. However, existing method does not consider the use…

计算与语言 · 计算机科学 2022-12-16 Yifeng Xie

Deep learning (DL) has achieved unprecedented success in a variety of tasks. However, DL systems are notoriously difficult to test and debug due to the lack of explainability of DL models and the huge test input space to cover. Generally…

机器学习 · 计算机科学 2021-05-24 Yu Li , Min Li , Qiuxia Lai , Yannan Liu , Qiang Xu

Reranking is fundamental to information retrieval and retrieval-augmented generation, with recent Large Language Models (LLMs) significantly advancing reranking quality. Most current works rely on large-scale LLMs (>7B parameters),…

信息检索 · 计算机科学 2026-04-17 Xianming Li , Aamir Shakir , Rui Huang , Tsz-fung Andrew Lee , Julius Lipp , Benjamin Clavié , Jing Li

We address the task of hierarchical multi-label classification (HMC) of scientific documents at an industrial scale, where hundreds of thousands of documents must be classified across thousands of dynamic labels. The rapid growth of…

人工智能 · 计算机科学 2024-12-09 Seyed Amin Tabatabaei , Sarah Fancher , Michael Parsons , Arian Askari

Large-scale multi-label text classification (LMTC) aims to associate a document with its relevant labels from a large candidate set. Most existing LMTC approaches rely on massive human-annotated training data, which are often costly to…

计算与语言 · 计算机科学 2023-10-24 Yu Zhang , Zhihong Shen , Chieh-Han Wu , Boya Xie , Junheng Hao , Ye-Yi Wang , Kuansan Wang , Jiawei Han

Listwise reranking is a key yet computationally expensive component in vision-centric retrieval and multimodal retrieval-augmented generation (M-RAG) over long documents. While recent VLM-based rerankers achieve strong accuracy, their…

信息检索 · 计算机科学 2026-05-13 Yiqun Sun , Pengfei Wei , Lawrence B. Hsieh

Long-tailed image recognition presents massive challenges to deep learning systems since the imbalance between majority (head) classes and minority (tail) classes severely skews the data-driven deep neural networks. Previous methods tackle…

计算机视觉与模式识别 · 计算机科学 2022-10-11 Yue Xu , Yong-Lu Li , Jiefeng Li , Cewu Lu

We formulate a supervised learning problem, referred to as continuous ranking, where a continuous real-valued label Y is assigned to an observable r.v. X taking its values in a feature space $\mathcal{X}$ and the goal is to order all…

机器学习 · 统计学 2018-01-18 Stephan Clémençon , Mastane Achab

This work investigates the use of class-level difficulty factors in multi-label classification problems for the first time. Four class-level difficulty factors are proposed: frequency, visual variation, semantic abstraction, and class…

计算机视觉与模式识别 · 计算机科学 2020-05-04 Mark Marsden , Kevin McGuinness , Joseph Antony , Haolin Wei , Milan Redzic , Jian Tang , Zhilan Hu , Alan Smeaton , Noel E O'Connor

This paper investigates the problem of scene graph generation in videos with the aim of capturing semantic relations between subjects and objects in the form of $\langle$subject, predicate, object$\rangle$ triplets. Recognizing the…

计算机视觉与模式识别 · 计算机科学 2023-06-21 Shuo Chen , Yingjun Du , Pascal Mettes , Cees G. M. Snoek

Large language model (LLM) based listwise reranking has emerged as the dominant paradigm for achieving state-of-the-art ranking effectiveness in information retrieval. However, its reliance on feeding full passage texts into the LLM…

信息检索 · 计算机科学 2026-04-27 Xiaojie Ke , Shuai Zhang , Liansheng Sun , Yongjin Wang , Hengjun Jiang , Xiangkun Liu , Cunxin Gu , Jian Xu , Guanjun Jiang

Multi-label classification is prevalent in real-world settings, but the behavior of Large Language Models (LLMs) in this setting is understudied. We investigate how autoregressive LLMs perform multi-label classification, focusing on…

计算与语言 · 计算机科学 2025-11-12 Marcus Ma , Georgios Chochlakis , Niyantha Maruthu Pandiyan , Jesse Thomason , Shrikanth Narayanan

Multi-label text classification (MLTC) is one of the key tasks in natural language processing. It aims to assign multiple target labels to one document. Due to the uneven popularity of labels, the number of documents per label follows a…

计算与语言 · 计算机科学 2022-11-22 Lin Xiao , Pengyu Xu , Liping Jing , Xiangliang Zhang

Long-tail imbalance is endemic to multi-label learning: a few head labels dominate the gradient signal, while the many rare labels that matter in practice are silently ignored. We tackle this problem by casting the task as a cooperative…

机器学习 · 计算机科学 2025-10-21 Canran Xiao , Chuangxin Zhao , Zong Ke , Fei Shen

Extreme multi-label text classification (XMTC) refers to the problem of tagging a given text with the most relevant subset of labels from a large label set. A majority of labels only have a few training instances due to large label…

人工智能 · 计算机科学 2022-05-25 Yuan Wang , Huiling Song , Peng Huo , Tao Xu , Jucheng Yang , Yarui Chen , Tingting Zhao

Multi-label classification is a type of supervised machine learning that can simultaneously assign multiple labels to an instance. To solve this task, some methods divide the original problem into several sub-problems (local approach),…

机器学习 · 计算机科学 2024-11-18 Elaine Cecília Gatto , Felipe Nakano Kenji , Jesse Read , Mauri Ferrandin , Ricardo Cerri , Celine Vens

Continual learning (CL) aims to constantly learn new knowledge over time while avoiding catastrophic forgetting on old tasks. In this work, we focus on continual text classification under the class-incremental setting. Recent CL studies…

计算与语言 · 计算机科学 2023-05-15 Yifan Song , Peiyi Wang , Dawei Zhu , Tianyu Liu , Zhifang Sui , Sujian Li