Search Results for author: Pengyun Wang

Found 10 papers, 7 papers with code

DELTA: Dual Consistency Delving with Topological Uncertainty for Active Graph Domain Adaptation

no code implementations13 Sep 2024 Pengyun Wang, Yadi Cao, Chris Russell, Siyu Heng, Junyu Luo, Yanxin Shen, Xiao Luo

To address the issue, we study the problem of active graph domain adaptation, which selects a small quantitative of informative nodes on the target graph for extra annotation.

Domain Adaptation GRAPH DOMAIN ADAPTATION +1

A Comprehensive Graph Pooling Benchmark: Effectiveness, Robustness and Generalizability

1 code implementation13 Jun 2024 Pengyun Wang, Junyu Luo, Yanxin Shen, Ming Zhang, Siyu Heng, Xiao Luo

Graph pooling has gained attention for its ability to obtain effective node and graph representations for various downstream tasks.

Graph Classification Graph Regression +1

Ti-MAE: Self-Supervised Masked Time Series Autoencoders

1 code implementation21 Jan 2023 Zhe Li, Zhongwen Rao, Lujia Pan, Pengyun Wang, Zenglin Xu

Multivariate Time Series forecasting has been an increasingly popular topic in various applications and scenarios.

Contrastive Learning Multivariate Time Series Forecasting +2

OpenOOD: Benchmarking Generalized Out-of-Distribution Detection

4 code implementations13 Oct 2022 Jingkang Yang, Pengyun Wang, Dejian Zou, Zitang Zhou, Kunyuan Ding, Wenxuan Peng, Haoqi Wang, Guangyao Chen, Bo Li, Yiyou Sun, Xuefeng Du, Kaiyang Zhou, Wayne Zhang, Dan Hendrycks, Yixuan Li, Ziwei Liu

Out-of-distribution (OOD) detection is vital to safety-critical machine learning applications and has thus been extensively studied, with a plethora of methods developed in the literature.

Anomaly Detection Benchmarking +3

Mask-GVAE: Blind Denoising Graphs via Partition

1 code implementation8 Feb 2021 Jia Li, Mengzhou Liu, Honglei Zhang, Pengyun Wang, Yong Wen, Lujia Pan, Hong Cheng

We present Mask-GVAE, a variational generative model for blind denoising large discrete graphs, in which "blind denoising" means we don't require any supervision from clean graphs.

Denoising

Predicting Path Failure In Time-Evolving Graphs

2 code implementations10 May 2019 Jia Li, Zhichao Han, Hong Cheng, Jiao Su, Pengyun Wang, Jianfeng Zhang, Lujia Pan

Through experiments on a real-world telecommunication network and a traffic network in California, we demonstrate the superiority of LRGCN to other competing methods in path failure prediction, and prove the effectiveness of SAPE on path representation.

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