no code implementations • Findings (EMNLP) 2021 • Zhiwei Yang, Jing Ma, Hechang Chen, Yunke Zhang, Yi Chang
Specifically, we first utilize a two-phase module to generate span representations by aggregating context information based on a bottom-up and top-down transformer network.
no code implementations • CVPR 2025 • Feilong Tang, Chengzhi Liu, Zhongxing Xu, Ming Hu, Zelin Peng, Zhiwei Yang, Jionglong Su, Minquan Lin, Yifan Peng, Xuelian Cheng, Imran Razzak, ZongYuan Ge
With this goal, we present FarSight, a versatile plug-and-play decoding strategy to reduce attention interference from outlier tokens merely by optimizing the causal mask.
no code implementations • 19 May 2025 • Zhiwei Yang, Zeyang Fan, Yihang Lai, Qi Chen, Tian Zhang, Jian Dai, Kun Xu
Considering the influence of dynamic noise in phase shifters, our proposed CAP algorithm (performance degradation of 22. 327% for MNIST dataset and 24. 019% for Fashion-MNIST dataset utilizing a poor fabricated chip and electrical control with a standard deviation of 0. 5) exhibits strongest robustness compared with both our previously reported block adjoint training algorithm (43. 963% and 41. 074%) and the covariance matrix adaptation evolution strategy (25. 757% and 32. 871%), respectively.
no code implementations • 14 Apr 2025 • Zongcan Ding, Haodong Zhang, Peng Wu, Guansong Pang, Zhiwei Yang, Peng Wang, Yanning Zhang
Extensive experiments on four benchmarks demonstrate that SlowFastVAD effectively combines the strengths of both fast and slow detectors, and achieves remarkable detection accuracy and interpretability with significantly reduced computational overhead, making it well-suited for real-world VAD applications with high reliability requirements.
no code implementations • 27 Mar 2025 • Zhiwei Yang, Chen Gao, Jing Liu, Peng Wu, Guansong Pang, Mike Zheng Shou
To bridge this gap and facilitate the practical deployment of LLM-based VAD, we introduce AssistPDA, the first online video anomaly surveillance assistant that unifies video anomaly prediction, detection, and analysis (VAPDA) within a single framework.
1 code implementation • CVPR 2025 • Zhiwei Yang, Yucong Meng, Kexue Fu, Feilong Tang, Shuo Wang, Zhijian Song
To mine fine-grained knowledge from visual features, our VC module first proposes Static Visual Calibration (SVC) to propagate fine-grained knowledge in a non-parametric manner.
2 code implementations • 14 Jan 2025 • Yucong Meng, Zhiwei Yang, Zhijian Song, Yonghong Shi
To address these, we propose a dual-domain hierarchical Mamba for MRI reconstruction from the following perspectives: (1) We pioneer vision Mamba in k-space learning.
1 code implementation • 15 Dec 2024 • Zhiwei Yang, Yucong Meng, Kexue Fu, Shuo Wang, Zhijian Song
To this end, we first view the attention as a novel directed graph and propose the Graph Category Representation module to implicitly regularize the interaction among class-patch entities.
Weakly supervised Semantic Segmentation
Weakly-Supervised Semantic Segmentation
no code implementations • 14 Dec 2024 • Yucong Meng, Zhiwei Yang, Yonghong Shi, Zhijian Song
In this paper, we propose FPS-Former, a powerful ViT-based framework, to address these issues from the perspectives of frequency modulation, spatial purification, and scale diversification.
2 code implementations • 14 Dec 2024 • Xiaoyan Yu, Yifan Wei, Shuaishuai Zhou, Zhiwei Yang, Li Sun, Hao Peng, Liehuang Zhu, Philip S. Yu
Specifically, the proposed framework first models social messages into semantic-based message anchors, and then leverages the structure of the anchor graph and the expressiveness of the hyperbolic space to acquire structure- and geometry-aware anchor representations.
no code implementations • 18 Nov 2024 • Yucong Meng, Zhiwei Yang, Minghong Duan, Yonghong Shi, Zhijian Song
In this work, we propose a continuous k-space recovery network from a new perspective of implicit neural representation with image domain guidance, which boosts the performance of MRI reconstruction.
no code implementations • 12 Aug 2024 • Peng Wu, Xuerong Zhou, Guansong Pang, Zhiwei Yang, Qingsen Yan, Peng Wang, Yanning Zhang
Existing works typically involve extracting global features from full-resolution video frames and training frame-level classifiers to detect anomalies in the temporal dimension.
no code implementations • 23 Jul 2024 • Zhiwei Yang, Yuecen Wei, Haoran Li, Qian Li, Lei Jiang, Li Sun, Xiaoyan Yu, Chunming Hu, Hao Peng
In this process, our method can adaptively apply differential privacy based on the events occurring each day in an open environment to maximize the use of the privacy budget.
1 code implementation • 6 May 2024 • Bo wang, Jing Ma, Hongzhan Lin, Zhiwei Yang, Ruichao Yang, Yuan Tian, Yi Chang
To detect fake news from a sea of diverse, crowded and even competing narratives, in this paper, we propose a novel defense-based explainable fake news detection framework.
1 code implementation • 12 Apr 2024 • Zhiwei Yang, Yucong Meng, Kexue Fu, Shuo Wang, Zhijian Song
When activating class objects, we argue that the false activation stems from the bias to the ambiguous regions during the feature extraction.
no code implementations • CVPR 2024 • Zhiwei Yang, Jing Liu, Peng Wu
Further, we propose a learnable text prompt mechanism with the assist of a normality visual prompt to further improve the matching accuracy of video event description text and video frames.
1 code implementation • CVPR 2024 • Zhiwei Yang, Kexue Fu, Minghong Duan, Linhao Qu, Shuo Wang, Zhijian Song
In this work, we devise a 'Separate and Conquer' scheme SeCo to tackle this issue from dimensions of image space and feature space.
no code implementations • 28 Jan 2024 • Minghong Duan, Linhao Qu, Zhiwei Yang, Manning Wang, Chenxi Zhang, Zhijian Song
Thus, we propose an Implicit Self-Texture Enhancement-based dual-branch framework (ISTE) for arbitrary-scale SR of histopathology images to address this challenge.
1 code implementation • 25 Oct 2023 • Ruichao Yang, Wei Gao, Jing Ma, Hongzhan Lin, Zhiwei Yang
This model only requires bag-level labels for training but is capable of inferring both sentence-level misinformation and article-level veracity, aided by relevant social media conversations that are attentively contextualized with news sentences.
1 code implementation • 17 Oct 2023 • Shuo Wang, Yan Zhu, Xiaoyuan Luo, Zhiwei Yang, Yizhe Zhang, Peiyao Fu, Manning Wang, Zhijian Song, QuanLin Li, Pinghong Zhou, Yike Guo
EndoKED automates the transformation of raw colonoscopy records into image datasets with pixel-level annotation.
1 code implementation • 11 Jul 2023 • Linhao Qu, Yingfan Ma, Zhiwei Yang, Manning Wang, Zhijian Song
In this paper, we formulate this scenario as an open-set AL problem and propose an efficient framework, OpenAL, to address the challenge of querying samples from an unlabeled pool with both target class and non-target class samples.
no code implementations • 21 Jun 2023 • Zhiwei Yang
This paper applies the Hotelling model to the context of exhaustible human resources in China.
no code implementations • 30 Apr 2023 • Minghui Yang, Jing Liu, Zhiwei Yang, Zhaoyang Wu
Focusing on more effective and comprehensive anomaly detection, we propose a network based on self-supervised learning and self-attentive graph convolution (SLSG) for anomaly detection.
Ranked #8 on
Anomaly Detection
on MVTec LOCO AD
no code implementations • CVPR 2023 • Zhiwei Yang, Jing Liu, Zhaoyang Wu, Peng Wu, Xiaotao Liu
Video anomaly detection (VAD) is a significant computer vision problem.
no code implementations • 9 Apr 2023 • Linhao Qu, Minghong Duan, Zhiwei Yang, Manning Wang, Zhijian Song
Existing super-resolution models for pathology images can only work in fixed integer magnifications and have limited performance.
no code implementations • 4 Apr 2023 • Hongzhan Lin, Jing Ma, Ruichao Yang, Zhiwei Yang, Mingfei Cheng
The truth is significantly hampered by massive rumors that spread along with breaking news or popular topics.
no code implementations • ICCV 2023 • Linhao Qu, Zhiwei Yang, Minghong Duan, Yingfan Ma, Shuo Wang, Manning Wang, Zhijian Song
However, there are still three important issues that have not been fully addressed: (1) positive bags with a low positive instance ratio are prone to the influence of a large number of negative instances; (2) the correlation between local and global features of pathology images has not been fully modeled; and (3) there is a lack of effective information interaction between different magnifications.
1 code implementation • COLING 2022 • Zhiwei Yang, Jing Ma, Hechang Chen, Hongzhan Lin, Ziyang Luo, Yi Chang
Existing fake news detection methods aim to classify a piece of news as true or false and provide veracity explanations, achieving remarkable performances.
Ranked #3 on
Fake News Detection
on RAWFC
1 code implementation • 22 Jul 2022 • Zhiwei Yang, Peng Wu, Jing Liu, Xiaotao Liu
Existing methods for anomaly detection based on memory-augmented autoencoder (AE) have the following drawbacks: (1) Establishing a memory bank requires additional memory space.
1 code implementation • 20 May 2022 • Xing Chen, Dongcui Diao, Hechang Chen, Hengshuai Yao, Haiyin Piao, Zhixiao Sun, Zhiwei Yang, Randy Goebel, Bei Jiang, Yi Chang
The popular Proximal Policy Optimization (PPO) algorithm approximates the solution in a clipped policy space.
no code implementations • Findings (NAACL) 2022 • Ziyang Luo, Yadong Xi, Jing Ma, Zhiwei Yang, Xiaoxi Mao, Changjie Fan, Rongsheng Zhang
In contrast, Transformer Decoder with the causal attention masks is naturally sensitive to the word order.
1 code implementation • Findings (NAACL) 2022 • Hongzhan Lin, Jing Ma, Liangliang Chen, Zhiwei Yang, Mingfei Cheng, Guang Chen
Massive false rumors emerging along with breaking news or trending topics severely hinder the truth.
no code implementations • EMNLP 2021 • Hongzhan Lin, Jing Ma, Mingfei Cheng, Zhiwei Yang, Liangliang Chen, Guang Chen
Rumors are rampant in the era of social media.
1 code implementation • ECCV 2020 • Peng Wu, Jing Liu, Yujia Shi, Yujia Sun, Fangtao Shao, Zhaoyang Wu, Zhiwei Yang
Violence detection has been studied in computer vision for years.
Ranked #14 on
Anomaly Detection In Surveillance Videos
on XD-Violence