no code implementations • Findings (ACL) 2022 • YUREN MAO, Zekai Wang, Weiwei Liu, Xuemin Lin, Pengtao Xie
Task weighting, which assigns weights on the including tasks during training, significantly matters the performance of Multi-task Learning (MTL); thus, recently, there has been an explosive interest in it.
no code implementations • ICML 2020 • YUREN MAO, Weiwei Liu, Xuemin Lin
Adversarial Multi-task Representation Learning (AMTRL) methods are able to boost the performance of Multi-task Representation Learning (MTRL) models.
no code implementations • 29 Mar 2024 • Xin Zou, Weiwei Liu
In this paper, we study the confidence set prediction problem in the OOD generalization setting.
1 code implementation • CVPR 2024 • Ke Guo, Zhenwei Miao, Wei Jing, Weiwei Liu, Weizi Li, Dayang Hao, Jia Pan
Due to the covariate shift issue, existing imitation learning-based simulators often fail to generate stable long-term simulations.
no code implementations • 10 May 2023 • Haobo Wang, Shisong Yang, Gengyu Lyu, Weiwei Liu, Tianlei Hu, Ke Chen, Songhe Feng, Gang Chen
In partial multi-label learning (PML), each data example is equipped with a candidate label set, which consists of multiple ground-truth labels and other false-positive labels.
no code implementations • 21 Feb 2023 • Xin Zou, Weiwei Liu
Deep networks are well-known to be fragile to adversarial attacks, and adversarial training is one of the most popular methods used to train a robust model.
no code implementations • 13 Feb 2023 • Ritayu Nagpal, Sam Long, Shahid Jahagirdar, Weiwei Liu, Scott Fazackerley, Ramon Lawrence, Amritpal Singh
Tree fruit breeding is a long-term activity involving repeated measurements of various fruit quality traits on a large number of samples.
4 code implementations • 9 Feb 2023 • Zekai Wang, Tianyu Pang, Chao Du, Min Lin, Weiwei Liu, Shuicheng Yan
Under the $\ell_\infty$-norm threat model with $\epsilon=8/255$, our models achieve $70. 69\%$ and $42. 67\%$ robust accuracy on CIFAR-10 and CIFAR-100, respectively, i. e. improving upon previous state-of-the-art models by $+4. 58\%$ and $+8. 03\%$.
1 code implementation • 8 Feb 2023 • Boqi Li, Weiwei Liu
Furthermore, we propose a measurement to evaluate the proposed method in terms of both the average and worst-class accuracies.
1 code implementation • 7 Jun 2022 • Chenxia Li, Weiwei Liu, Ruoyu Guo, Xiaoting Yin, Kaitao Jiang, Yongkun Du, Yuning Du, Lingfeng Zhu, Baohua Lai, Xiaoguang Hu, dianhai yu, Yanjun Ma
For text recognizer, the base model is replaced from CRNN to SVTR, and we introduce lightweight text recognition network SVTR LCNet, guided training of CTC by attention, data augmentation strategy TextConAug, better pre-trained model by self-supervised TextRotNet, UDML, and UIM to accelerate the model and improve the effect.
no code implementations • 1 Mar 2022 • Jiejun Tan, Wenbin Hu, Weiwei Liu
To address these issues, a novel paradigm, Entity Pre-typing Relation Classification with Prompt Answer Centralizing(EPPAC) is proposed in this paper.
3 code implementations • 7 Sep 2021 • Yuning Du, Chenxia Li, Ruoyu Guo, Cheng Cui, Weiwei Liu, Jun Zhou, Bin Lu, Yehua Yang, Qiwen Liu, Xiaoguang Hu, dianhai yu, Yanjun Ma
Optical Character Recognition (OCR) systems have been widely used in various of application scenarios.
Optical Character Recognition Optical Character Recognition (OCR)
no code implementations • ACL 2021 • YUREN MAO, Zekai Wang, Weiwei Liu, Xuemin Lin, Wenbin Hu
Task variance regularization, which can be used to improve the generalization of Multi-task Learning (MTL) models, remains unexplored in multi-task text classification.
no code implementations • 23 Nov 2020 • Weiwei Liu, Haobo Wang, Xiaobo Shen, Ivor W. Tsang
Exabytes of data are generated daily by humans, leading to the growing need for new efforts in dealing with the grand challenges for multi-label learning brought by big data.
no code implementations • 11 Nov 2020 • Xinjian Huang, Weiwei Liu, Bo Du, DaCheng Tao
In this paper, we employ the leverage scores to characterize the importance of each element and significantly relax assumptions to: (1) not any other structure assumptions are imposed on the underlying low-rank matrix; (2) elements being observed are appropriately dependent on their importance via the leverage score.
10 code implementations • 21 Sep 2020 • Yuning Du, Chenxia Li, Ruoyu Guo, Xiaoting Yin, Weiwei Liu, Jun Zhou, Yifan Bai, Zilin Yu, Yehua Yang, Qingqing Dang, Haoshuang Wang
Meanwhile, several pre-trained models for the Chinese and English recognition are released, including a text detector (97K images are used), a direction classifier (600K images are used) as well as a text recognizer (17. 9M images are used).
no code implementations • ACL 2020 • YUREN MAO, Shuang Yun, Weiwei Liu, Bo Du
Multi-task Learning methods have achieved great progress in text classification.
1 code implementation • 19 Jun 2020 • Pinghua Xu, Wenbin Hu, Jia Wu, Weiwei Liu
However, the practical significance of the existing studies on this subject is limited for two reasons.
Social and Information Networks Computer Science and Game Theory J.4
no code implementations • NeurIPS 2019 • Weiwei Liu
This inspires us to develop a novel copula multi-label learning paradigm for modeling label and feature dependencies.
no code implementations • NeurIPS 2017 • Weiwei Liu, Xiaobo Shen, Ivor Tsang
For example, compared to the advanced singular value decomposition based feature extraction approach, [1] reduce the running time by a factor of $\min \{n, d\}\epsilon^2 log(d)/k$ for data matrix $X \in \mathbb{R}^{n\times d} $ with $n$ data points and $d$ features, while losing only a factor of one in approximation accuracy.
no code implementations • NeurIPS 2015 • Weiwei Liu, Ivor Tsang
Based on our results, we propose a dynamic programming based classifier chain (CC-DP) algorithm to search the globally optimal label order for CC and a greedy classifier chain (CC-Greedy) algorithm to find a locally optimal CC.