no code implementations • 4 Feb 2024 • Lecheng Zheng, Zhengzhang Chen, Jingrui He, Haifeng Chen
Effective root cause analysis (RCA) is vital for swiftly restoring services, minimizing losses, and ensuring the smooth operation and management of complex systems.
no code implementations • 30 Mar 2023 • Lecheng Zheng, Dawei Zhou, Hanghang Tong, Jiejun Xu, Yada Zhu, Jingrui He
In addition, we propose a generic context sampling strategy for graph generative models, which is proven to be capable of fairly capturing the contextual information of each group with a high probability.
1 code implementation • 11 Feb 2023 • Lecheng Zheng, Yada Zhu, Jingrui He
We also derive insights regarding the relative performance of the proposed regularizers in various scenarios.
1 code implementation • 21 Aug 2022 • Dawei Zhou, Lecheng Zheng, Dongqi Fu, Jiawei Han, Jingrui He
To comprehend heterogeneous graph signals at different granularities, we propose a curriculum learning paradigm that automatically re-weighs graph signals in order to ensure a good generalization in the target domain.
no code implementations • 26 Oct 2021 • Lecheng Zheng, Dongqi Fu, Ross Maciejewski, Jingrui He
However, two major problems hinder the deeper GNNs to obtain satisfactory performance, i. e., vanishing gradient and over-smoothing.
Ranked #15 on Node Classification on Reddit
1 code implementation • 19 May 2021 • Lecheng Zheng, JinJun Xiong, Yada Zhu, Jingrui He
We first provide a theoretical analysis showing that the vanilla contrastive learning loss easily leads to the sub-optimal solution in the presence of false negative pairs, whereas the proposed weighted loss could automatically adjust the weight based on the similarity of the learned representations to mitigate this issue.
1 code implementation • 15 Feb 2021 • Lecheng Zheng, Yu Cheng, Hongxia Yang, Nan Cao, Jingrui He
For example, given the diagnostic result that a model provided based on the X-ray images of a patient at different poses, the doctor needs to know why the model made such a prediction.
1 code implementation • 25 Jan 2019 • Lecheng Zheng, Yu Cheng, Jingrui He
However, there is no existing deep learning algorithm that jointly models task and view dual heterogeneity, particularly for a data set with multiple modalities (text and image mixed data set or text and video mixed data set, etc.).