no code implementations • 27 Mar 2024 • Wenzhuo LIU, Fei Zhu, Cheng-Lin Liu
Self-supervised learning (SSL) has emerged as an effective paradigm for deriving general representations from vast amounts of unlabeled data.
no code implementations • 27 Mar 2024 • Wenzhuo LIU, Fei Zhu, Cheng-Lin Liu
On the other hand, Semi-IPC learns a prototype for each class with unsupervised regularization, enabling the model to incrementally learn from partially labeled new data while maintaining the knowledge of old classes.
no code implementations • 27 Mar 2024 • Wenzhuo LIU, Fei Zhu, Cheng-Lin Liu
Convolutional Neural Networks (CNNs) have advanced significantly in visual representation learning and recognition.
3 code implementations • 18 Mar 2024 • Hongbo Zhao, Bolin Ni, Haochen Wang, Junsong Fan, Fei Zhu, Yuxi Wang, Yuntao Chen, Gaofeng Meng, Zhaoxiang Zhang
(i) For unwanted knowledge, efficient and effective deleting is crucial.
1 code implementation • 7 Mar 2024 • Shijie Ma, Fei Zhu, Zhun Zhong, Xu-Yao Zhang, Cheng-Lin Liu
Generalized Category Discovery (GCD) is a pragmatic and challenging open-world task, which endeavors to cluster unlabeled samples from both novel and old classes, leveraging some labeled data of old classes.
1 code implementation • 5 Mar 2024 • Fei Zhu, Xu-Yao Zhang, Zhen Cheng, Cheng-Lin Liu
Reliable confidence estimation is a challenging yet fundamental requirement in many risk-sensitive applications.
no code implementations • 4 Mar 2024 • Fei Zhu, Shijie Ma, Zhen Cheng, Xu-Yao Zhang, Zhaoxiang Zhang, Cheng-Lin Liu
This paper aims to provide a comprehensive introduction to the emerging open-world machine learning paradigm, to help researchers build more powerful AI systems in their respective fields, and to promote the development of artificial general intelligence.
no code implementations • 4 Jan 2024 • Haiyang Guo, Fei Zhu, Wenzhuo LIU, Xu-Yao Zhang, Cheng-Lin Liu
On the other hand, our approach utilizes a pre-trained model as the backbone and utilizes LoRA to fine-tune with a tiny amount of parameters when learning new classes.
no code implementations • 4 Aug 2023 • Wenzhuo LIU, Xinjian Wu, Fei Zhu, Mingming Yu, Chuang Wang, Cheng-Lin Liu
This is hard for DNN because it tends to focus on fitting to new classes while ignoring old classes, a phenomenon known as catastrophic forgetting.
1 code implementation • 18 Jul 2023 • Shijie Ma, Fei Zhu, Zhen Cheng, Xu-Yao Zhang
By distilling both InD samples and outliers, the condensed datasets are capable to train models competent in both InD classification and OOD detection.
1 code implementation • CVPR 2023 • Fei Zhu, Zhen Cheng, Xu-Yao Zhang, Cheng-Lin Liu
Reliable confidence estimation for deep neural classifiers is a challenging yet fundamental requirement in high-stakes applications.
1 code implementation • 21 Mar 2023 • Xiu-Chuan Li, Xiaobo Xia, Fei Zhu, Tongliang Liu, Xu-Yao Zhang, Cheng-Lin Liu
Label noise poses a serious threat to deep neural networks (DNNs).
no code implementations • 14 Mar 2023 • Tingting Fang, Fei Zhu, Jie Chen
Current deep learning-based nonlinear unmixing focuses on the models in additive, bilinear-based formulations.
1 code implementation • 6 Mar 2023 • Fei Zhu, Zhen Cheng, Xu-Yao Zhang, Cheng-Lin Liu
We investigate this problem and reveal that popular confidence calibration methods often lead to worse confidence separation between correct and incorrect samples, making it more difficult to decide whether to trust a prediction or not.
no code implementations • 2 Mar 2023 • Zhen Cheng, Fei Zhu, Xu-Yao Zhang, Cheng-Lin Liu
Detecting Out-of-distribution (OOD) inputs have been a critical issue for neural networks in the open world.
no code implementations • CVPR 2023 • Xiaoshuai Hao, Wanqian Zhang, Dayan Wu, Fei Zhu, Bo Li
To tackle this, we propose a novel method named Dual Alignment Domain Adaptation (DADA).
no code implementations • 20 Oct 2022 • Yun Qin, Fei Zhu, Bo Xi
DNA has immense potential as an emerging data storage medium.
2 code implementations • NeurIPS 2021 • Fei Zhu, Zhen Cheng, Xu-Yao Zhang, Cheng-Lin Liu
Deep learning systems typically suffer from catastrophic forgetting of past knowledge when acquiring new skills continually.
no code implementations • 29 Sep 2021 • Zhen Cheng, Fei Zhu, Xu-Yao Zhang, Cheng-Lin Liu
Comprehensive experiments demonstrate that FSR is effective to alleviate the dominance of larger eigenvalues and improve adversarial robustness on different datasets.
1 code implementation • CVPR 2021 • Fei Zhu, Xu-Yao Zhang, Chuang Wang, Fei Yin, Cheng-Lin Liu
Despite the impressive performance in many individual tasks, deep neural networks suffer from catastrophic forgetting when learning new tasks incrementally.
no code implementations • 1 Jan 2021 • Fei Zhu, Xu-Yao Zhang, Chuang Wang, Cheng-Lin Liu
In spite of the simplicity, extensive experiments demonstrate that the misclassification detection performance of DNNs can be significantly improved by seeing more generated pseudo-classes during training.
no code implementations • 1 Apr 2020 • Alan J. X. Guo, Fei Zhu
Recent advances in neural networks have made great progress in the hyperspectral image (HSI) classification.
no code implementations • 4 Mar 2019 • Yi Liang, Xin Zhao, Alan J. X. Guo, Fei Zhu
To improve the classification performance in the context of hyperspectral image processing, many works have been developed based on two common strategies, namely the spatial-spectral information integration and the utilization of neural networks.
Ranked #8 on Hyperspectral Image Classification on Indian Pines (Overall Accuracy metric)
General Classification Hyperspectral Image Classification +3
no code implementations • 31 Jan 2018 • Alan J. X. Guo, Fei Zhu
At the testing stage, by applying the discriminant model to the pixel-pairs generated by the test pixel and its neighbors, the local structure is estimated and represented as a customized convolutional kernel.
no code implementations • 20 Nov 2017 • Alan J. X. Guo, Fei Zhu
In this paper, we propose a spectral-spatial feature extraction and classification framework based on artificial neuron network (ANN) in the context of hyperspectral imagery.
no code implementations • 4 Feb 2016 • Fei Zhu, Abderrahim Halimi, Paul Honeine, Badong Chen, Nanning Zheng
In hyperspectral images, some spectral bands suffer from low signal-to-noise ratio due to noisy acquisition and atmospheric effects, thus requiring robust techniques for the unmixing problem.
no code implementations • 22 Jan 2015 • Paul Honeine, Fei Zhu
Nonnegative matrix factorization (NMF) is a powerful class of feature extraction techniques that has been successfully applied in many fields, namely in signal and image processing.
no code implementations • 16 Jul 2014 • Fei Zhu, Paul Honeine, Maya Kallas
The nonnegative matrix factorization (NMF) is widely used in signal and image processing, including bio-informatics, blind source separation and hyperspectral image analysis in remote sensing.