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Collaborative filtering (CF) stands as a cornerstone in recommender systems, yet effectively leveraging the massive unlabeled data presents a significant challenge. Current research focuses on addressing the challenge of unlabeled data by…

信息检索 · 计算机科学 2024-12-25 Yuhan Zhao , Rui Chen , Qilong Han , Hongtao Song , Li Chen

In this work, we develop a joint sample discovery and iterative model evolution method for semi-supervised learning on very small labeled training sets. We propose a master-teacher-student model framework to provide multi-layer guidance…

计算机视觉与模式识别 · 计算机科学 2019-09-05 Yang Li , Jianhe Yuan , Zhiqun Zhao , Hao Sun , Zhihai He

In this paper, we tackle the problem of discovering new classes in unlabeled visual data given labeled data from disjoint classes. Existing methods typically first pre-train a model with labeled data, and then identify new classes in…

计算机视觉与模式识别 · 计算机科学 2020-04-14 Zhun Zhong , Linchao Zhu , Zhiming Luo , Shaozi Li , Yi Yang , Nicu Sebe

The incorporation of advanced sensors and machine learning techniques has enabled modern manufacturing enterprises to perform data-driven classification-based anomaly detection based on the sensor data collected in manufacturing processes.…

机器学习 · 计算机科学 2024-11-19 Yuxuan Li , Tianxin Xie , Chenang Liu , Zhangyue Shi

We introduce Test-Time Discovery (TTD) as a novel task that addresses class shifts during testing, requiring models to simultaneously identify emerging categories while preserving previously learned ones. A key challenge in TTD is…

计算机视觉与模式识别 · 计算机科学 2025-03-17 Fan Lyu , Tianle Liu , Zhang Zhang , Fuyuan Hu , Liang Wang

When dealing with multi-class classification problems, it is common practice to build a model consisting of a series of binary classifiers using a learning paradigm which dictates how the classifiers are built and combined to discriminate…

机器学习 · 计算机科学 2021-01-06 Daniel Cauchi , Adrian Muscat

We study an Open-World Class Discovery problem in which, given labeled training samples from old classes, we need to discover new classes from unlabeled test samples. There are two critical challenges to addressing this paradigm: (a)…

机器学习 · 计算机科学 2020-12-15 Zifeng Wang , Batool Salehi , Andrey Gritsenko , Kaushik Chowdhury , Stratis Ioannidis , Jennifer Dy

Self-supervised pretraining on unlabeled data followed by supervised fine-tuning on labeled data is a popular paradigm for learning from limited labeled examples. We extend this paradigm to the classical positive unlabeled (PU) setting,…

Continual learning techniques employ simple replay sample selection processes and use them during subsequent tasks. Typically, they rely on labeled data. In this paper, we depart from this by automatically selecting prototypes stored…

机器学习 · 计算机科学 2025-04-11 Agil Aghasanli , Yi Li , Plamen Angelov

In this paper, we work on a sound recognition system that continually incorporates new sound classes. Our main goal is to develop a framework where the model can be updated without relying on labeled data. For this purpose, we propose…

音频与语音处理 · 电气工程与系统科学 2023-01-11 Zhepei Wang , Cem Subakan , Xilin Jiang , Junkai Wu , Efthymios Tzinis , Mirco Ravanelli , Paris Smaragdis

To increase the trustworthiness of deep neural networks, it is critical to improve the understanding of how they make decisions. This paper introduces a novel unsupervised concept-based model for image classification, named Learnable…

Classical sequential recommendation models generally adopt ID embeddings to store knowledge learned from user historical behaviors and represent items. However, these unique IDs are challenging to be transferred to new domains. With the…

信息检索 · 计算机科学 2024-05-08 Yiqing Wu , Ruobing Xie , Zhao Zhang , Fuzhen Zhuang , Xu Zhang , Leyu Lin , Zhanhui Kang , Yongjun Xu

Language models (LMs) trained on vast quantities of unlabelled data have greatly advanced the field of natural language processing (NLP). In this study, we re-visit the widely accepted notion in NLP that continued pre-training LMs on…

计算与语言 · 计算机科学 2023-10-09 Zhengxiang Shi , Aldo Lipani

Causal discovery from time series data encompasses many existing solutions, including those based on deep learning techniques. However, these methods typically do not endorse one of the most prevalent paradigms in deep learning: End-to-end…

机器学习 · 计算机科学 2024-02-15 Gideon Stein , Maha Shadaydeh , Joachim Denzler

Exploration remains a significant challenge in reinforcement learning, especially in environments where extrinsic rewards are sparse or non-existent. The recent rise of foundation models, such as CLIP, offers an opportunity to leverage…

人工智能 · 计算机科学 2024-11-26 Alain Andres , Javier Del Ser

Recent work exploring the capabilities of pre-trained large language models (LLMs) has demonstrated their ability to act as general pattern machines by completing complex token sequences representing a wide array of tasks, including…

计算机与社会 · 计算机科学 2024-03-25 Seyed Parsa Neshaei , Richard Lee Davis , Adam Hazimeh , Bojan Lazarevski , Pierre Dillenbourg , Tanja Käser

Existing work on continual learning (CL) is primarily devoted to developing algorithms for models trained from scratch. Despite their encouraging performance on contrived benchmarks, these algorithms show dramatic performance drops in…

计算机视觉与模式识别 · 计算机科学 2024-07-08 Kuan-Ying Lee , Yuanyi Zhong , Yu-Xiong Wang

For future learning systems, incremental learning is desirable because it allows for: efficient resource usage by eliminating the need to retrain from scratch at the arrival of new data; reduced memory usage by preventing or limiting the…

机器学习 · 计算机科学 2022-10-12 Marc Masana , Xialei Liu , Bartlomiej Twardowski , Mikel Menta , Andrew D. Bagdanov , Joost van de Weijer

Despite significant progress in continual learning ranging from architectural novelty to clever strategies for mitigating catastrophic forgetting most existing methods rest on a strong but unrealistic assumption the availability of labeled…

机器学习 · 计算机科学 2025-11-25 Hari Chandana Kuchibhotla , K S Ananth , Vineeth N Balasubramanian

While the novel class discovery has recently made great progress, existing methods typically focus on improving algorithms on class-balanced benchmarks. However, in real-world recognition tasks, the class distributions of their…

计算机视觉与模式识别 · 计算机科学 2023-08-28 Chuyu Zhang , Ruijie Xu , Xuming He