no code implementations • 18 Apr 2024 • Fan Li, Xiaoyang Wang, Dawei Cheng, Wenjie Zhang, Ying Zhang, Xuemin Lin
Self-supervised learning (SSL) provides a promising alternative for representation learning on hypergraphs without costly labels.
no code implementations • 15 Mar 2024 • Rui Zhang, Dawei Cheng, Xin Liu, Jie Yang, Yi Ouyang, Xian Wu, Yefeng Zheng
We find that in graph anomaly detection, the homophily distribution differences between different classes are significantly greater than those in homophilic and heterophilic graphs.
no code implementations • 7 Feb 2024 • Yuxuan Bian, Xuan Ju, Jiangtong Li, Zhijian Xu, Dawei Cheng, Qiang Xu
In this study, we present aLLM4TS, an innovative framework that adapts Large Language Models (LLMs) for time-series representation learning.
no code implementations • 2 Feb 2024 • Guibin Zhang, Yanwei Yue, Kun Wang, Junfeng Fang, Yongduo Sui, Kai Wang, Yuxuan Liang, Dawei Cheng, Shirui Pan, Tianlong Chen
Specifically, GST initially constructs a topology & semantic anchor at a low training cost, followed by performing dynamic sparse training to align the sparse graph with the anchor.
no code implementations • 12 Nov 2023 • Ruyao Xu, Taolin Zhang, Chengyu Wang, Zhongjie Duan, Cen Chen, Minghui Qiu, Dawei Cheng, Xiaofeng He, Weining Qian
In the experiments, we evaluate KANGAROO over various knowledge-aware and general NLP tasks in both full and few-shot learning settings, outperforming various KEPLM training paradigms performance in closed-domains significantly.
1 code implementation • 10 Nov 2023 • Yang Lei, Jiangtong Li, Ming Jiang, Junjie Hu, Dawei Cheng, Zhijun Ding, Changjun Jiang
Large language models (LLMs) have demonstrated great potential in the financial domain.
1 code implementation • 19 Sep 2023 • Jiangtong Li, Yuxuan Bian, Guoxuan Wang, Yang Lei, Dawei Cheng, Zhijun Ding, Changjun Jiang
The CFAPP is centered on large language models (LLMs) and augmented with additional modules to ensure multifaceted functionality in real-world application.
1 code implementation • 8 Sep 2023 • JinYuan Wang, Hai Zhao, Zhong Wang, Zeyang Zhu, Jinhao Xie, Yong Yu, Yongjian Fei, Yue Huang, Dawei Cheng
In recent years, great advances in pre-trained language models (PLMs) have sparked considerable research focus and achieved promising performance on the approach of dense passage retrieval, which aims at retrieving relative passages from massive corpus with given questions.
1 code implementation • AAAI 2023 • Sheng Xiang, Mingzhi Zhu, Dawei Cheng, Enxia Li, Ruihui Zhao, Yi Ouyang, Ling Chen, Yefeng Zheng
Then we pass messages among the nodes through a Gated Temporal Attention Network (GTAN) to learn the transaction representation.
Ranked #1 on Node Classification on Amazon-Fraud
2 code implementations • 9 May 2023 • Sheng Xiang, Dawei Cheng, Chencheng Shang, Ying Zhang, Yuqi Liang
The price movement prediction of stock market has been a classical yet challenging problem, with the attention of both economists and computer scientists.
1 code implementation • Pattern Recognition 2022 • Dawei Cheng, Fangzhou Yang, Sheng Xiang, Jin Liu
The heterogeneous graph network is constructed by the sources as nodes and relations in our financial knowledge graph as edges.
no code implementations • 29 Sep 2021 • Jianfu Zhang, Yan Hong, Dawei Cheng, Liqing Zhang, Qibin Zhao
In this paper, we propose a tensor-based framework for GNNs to learn robust graphs from adversarial graphs by aggregating predefined robust graphs to enhance the robustness of GNNs via tensor approximation.
1 code implementation • TKDE 2020 • Dawei Cheng, Xiaoyang Wang, Ying Zhang, Liqing Zhang
But manually generating features needs domain knowledge and may lay behind the modus operandi of fraud, which means we need to automatically focus on the most relevant fraudulent behavior patterns in the online detection system.
no code implementations • 16 Jun 2020 • Zhibin Niu, Runlin Li, Junqi Wu, Dawei Cheng, Jiawan Zhang
Groups of enterprises can serve as guarantees for one another and form complex networks when obtaining loans from commercial banks.
1 code implementation • AAAI 2020 • Dawei Cheng, Sheng Xiang, Chencheng Shang, Yiyi Zhang, Fangzhou Yang, Liqing Zhang
But manually generating features needs domain knowledge and may lay behind the modus operandi of fraud, which means we need to automatically focus on the most relevant patterns in fraudulent behavior.
no code implementations • 1 Dec 2019 • Yiyi Zhang, Li Niu, Ziqi Pan, Meichao Luo, Jianfu Zhang, Dawei Cheng, Liqing Zhang
Specifically, the VRE module includes a proxy task which imposes pseudo motion label constraint and temporal coherence constraint on unlabeled videos, while the MRA module could predict the motion information of a static action image by exploiting unlabeled videos.
no code implementations • 24 Nov 2019 • Yi Tu, Li Niu, Weijie Zhao, Dawei Cheng, Liqing Zhang
Aesthetic image cropping is a practical but challenging task which aims at finding the best crops with the highest aesthetic quality in an image.
no code implementations • CVPR 2020 • Yi Tu, Li Niu, Junjie Chen, Dawei Cheng, Liqing Zhang
However, crawled web images usually have two types of noises, label noise and background noise, which induce extra difficulties in utilizing them effectively.
Ranked #14 on Image Classification on WebVision-1000
1 code implementation • International Conference on Neural Information Processing 2016 • Kang Fu, Dawei Cheng, Yi Tu, and Liqing Zhang
Credit card is becoming more and more popular in financial transactions, at the same time frauds are also increasing.