Lianghao Xia is persueing his PhD degree in computer science at South China University of Technology. He will join Hong Kong University as a postdoctoral fellow in Spring, 2022.

Research Interests

• Data Mining, Deep Neural Networks;
• Graph Neural Networks, Multiplex Graph Learning;
• User Preference Modeling, Recommender Systems;
• Spatial-Temporal Data Mining, Urban Computing.

Publications

• [SIGIR’21] “Graph Meta Network for Multi-Behavior Recommendation”
  International ACM SIGIR Conference on Research and Development in Information Retrieval
  L. Xia, Y. Xu, C. Huang, P. Dai and L. Bo

• [AAAI’21] “Knowledge- Enhanced Hierarchical Graph Transformer Network for Multi-Behavior Recommendation”
  AAAI Conference on Artificial Intelligence
  L. Xia, C. Huang, Y. Xu, P. Dai, M. Lu and L. Bo

• [IJCAI’21] “Spatial-Temporal Sequential Hypergraph Network for Crime Prediction with Dynamic Multiplex Relation Learning”
  International Joint Conference on Artificial Intelligence
  L. Xia, C. Huang, Y. Xu, P. Dai, L. Bo, X. Zhang, T. Chen

• [TOIS’21] “Collaborative Reflection-Augmented Autoencoder Network for Recommender Systems”
  ACM Transactions on Information Systems
  L. Xia, C. Huang, Y. Xu, H. Xu, X. Li and W. Zhang

• [ICDE’21] “Multi-Behavior Enhanced Recommendation with Cross-Interaction Collaborative Relation Modeling”
  IEEE International Conference on Data Engineering
  L. Xia, C. Huang, Y. Xu, P. Dai, M. Lu and L. Bo

• [SIGIR’20] “Multiplex Behavioral Relation Learning for Recommendation via Memory Augmented Transformer Network”
  International ACM SIGIR Conference on Research and Development in Information Retrieval
  L. Xia, C. Huang, Y. Xu, P. Dai and L. Bo

• [WSDM’22] “Contrastive Meta Learning with Behavior Multiplicity for Recommendation”
  ACM International Conference on Web Search and Data Mining
  W. Wei, C. Huang, L. Xia, Y. Xu, J. Zhao, D. Yin

• [AAAI’21] “Graph-Enhanced Multi-Task Learning of Multi-Level Transition Dynamics for Session-based Recommendation”
  AAAI Conference on Artificial Intelligence
  C. Huang, J. Chen, L. Xia, Y. Xu, P. Dai, Y. Chen, L. Bo, J. Zhao and J. Huang

• [AAAI’21] “Traffic Flow Forecasting with Spatial-Temporal Graph Diffusion Network”
  AAAI Conference on Artificial Intelligence
  X. Zhang, C. Huang, Y. Xu, L. Xia, P Dai, L. Bo, J. Zhang and Y. Zheng

• [AAAI’21] “Knowledge-aware Coupled Graph Neural Network for Social Recommendation”
  AAAI Conference on Artificial Intelligence
  C. Huang, H. Xu, Y. Xu, P. Dai, L. Xia, M. Lu, L. Bo, H. Xing, X. Lai, Y. Ye

• [CIKM’21] “Social Recommendation with Self-Supervised Metagraph Informax Network”
  ACM International Conference on Information and Knowledge Management
  X. Long, C. Huang, Y. Xu, H. Xu, P. Dai, L. Xia, L. Bo

• [ICDM’20] “Global Context Enhanced Social Recommendation with Hierarchical Graph Neural Networks”
  IEEE International Conference on Data Mining
  H. Xu, C. Huang, Y. Xu, L. Xia, H. Xing and D. Yin

• [CIKM’20] “Spatial-Temporal Convolutional Graph Attention Networks for Citywide Traffic Flow Forecasting”
  ACM International Conference on Information and Knowledge Management
  X. Zhang, C. Huang, Y. Yu, and L. Xia

Education Background

• 09/2017-12/2021  South China University of Technology
          Department of Computer Science and Technology, PhD
• 09/2013-06/2017  South China University of Technology
          Computer Science and Technology (English-Taught Class), Bachelor

Work Experience

• 09/2016-05/2017  Microsoft Research Asia
          Innovation Engineering Group, Research Software Development Intern
• 05/2016-09/2016  Tencent Wechat
          Mini-Program Framework Development, Engineering Intern

Awards

• 12/2021  Nomination for He-Jingtang Innovation Prize (only 1 nomination from CS dept. each year)
• 09/2021  National Scholarship for PhD Candidates
• 09/2021  Presidential Scholarship of South China University of Technology
• 11/2020  China College Students’ ‘Internet Plus’ Innovation Competition, Golden Prize
• 10/2017  IEEExtreme Contest Top-100
• 10/2016  “Hong-Ping-Chang-Qing” Scholarship
• 10/2016  ACM-ICPC Asian Regional Contest, Copper Prize
• 05/2016  Guangdong Collegiate Programming Contest, Golden Prize
• 10/2015  ACM-ICPC Asian Regional Contest, Silver Prize

Invited Talks & Presentations

• 12/2021  Talk at Guangdong University of Technology
• 11/2021  Talk at College of Future Technology, South China University of Technology