Bo Xiong

Postdoc @ Stanford University

I am a Postdoctoral Scholar in AI at Stanford University, under the supervision of Prof. Mark Musen. Prior to that, I received my Ph.D. (with summa cum laude) in computer science at University of Stuttgart, Germany and the Intl. Max Plank Research School for Intelligent Systems (IMPRS-IS), under the supervision of Prof. Steffen Staab. My PhD was funded by the Marie Skłodowska-Curie PhD Fellowship. I was also an associate member of the TrustAGI Lab advised by Prof. Shirui Pan. I have published 20+ papers and/or served as PC in premier AI conferences such as NeurIPS, ICML, ICLR, KDD, ACL, WWW, EMNLP, AAAI, etc., and received the Best Student Paper Award of ISWC’22.

Recent News

May 2025 Two papers (1 poster + 1 spotlight) were accepted by ICML’25
Feb 2025 One paper was accepted by IEEE TPAMI (IF 20.8)
Jan 2025 One paper was accepted by ICLR’25
Jan 2025 Two papers (1 main, 1 short) were accepted by WWW’25
Jan 2025 One long paper was accepted by NAACL’25
Dec 2024 I started a Postdoc position at Stanford University
Sep 2024 Three finding papers got accepted by EMNLP’24
Jul 2024 I successfully defended my Ph.D. with summa cum laude (highest distinction)

Selected Publications

  1. ICML
    Is Complex Query Answering Really Complex?
    Cosimo Gregucci,  Bo Xiong, Daniel Hernandez, Lorenzo Loconte, Pasquale Minervini, Steffen Staab, and Antonio Vergari
    International Conference on Machine Learning 2025. Spotlight
    arXiv
  2. ICLR
    From Tokens to Lattices: Emergent Lattice Structure in Language Models
    Bo Xiong, and Steffen Staab
    International Conference on Learning Representation 2025
    arXiv Code
  3. WWW
    DAGE: DAG Query Answering via Relational Combinator with Logical Constraints
    Yunjie He,  Bo Xiong, Daniel Hernández, Yuqicheng Zhu, Evgeny Kharlamov, and Steffen Staab
    The Web Conference 2025
    arXiv
  4. ACL
    Shrinking Embeddings for Hyper-Relational Knowledge Graphs
    Bo Xiong, Mojtaba Nayyeri, Shirui Pan, and Steffen Staab
    The 61st Annual Meeting of the Association for Computational Linguistics 2023
    arXiv Code
  5. NeurIPS
    Pseudo-Riemannian Graph Convolutional Networks
    Bo Xiong, Shichao Zhu, Nico Potyka, Shirui Pan, Chuan Zhou, and Steffen Staab
    Advances in Neural Information Processing Systems 2022
    arXiv Code
  6. NeurIPS
    Hyperbolic Embedding Inference for Structured Multi-Label Prediction
    Bo Xiong, Michael Cochez, Mojtaba Nayyeri, and Steffen Staab
    Advances in Neural Information Processing Systems 2022
    arXiv Code
  7. KDD
    Ultrahyperbolic Knowledge Graph Embeddings
    Bo Xiong, Shichao Zhu, Mojtaba Nayyeri, Chenjin Xu, Shirui Pan, Chuan Zhou, and Steffen Staab.
    The 28th ACM SIGKDD Conference on Knowledge Discovery and Data Mining 2022
    arXiv Code