Xingyu Tan | UNSW, Sydney

About Me

I am currently a Ph.D. candidate in the Data and Knowledge Research Group (DKR) at the School of Computer Science and Engineering, University of New South Wales (UNSW) and Software Systems Group at Data61, Commonwealth Scientific and Industrial Research Organisation (CSIRO). I am fortunate to be jointly supervised by Dr. Xiaoyang Wang and Prof. Wenjie Zhang from UNSW, as well as Dr. Qing Liu, Dr. Xiwei Xu, Dr. Xin Yuan, and Prof. Liming Zhu from CSIRO.

Previously, I completed both of my Bachelor of Science (BSc.) in Computer Science and Master of Philosophy (MPhil.) in Computer Science and Engineering at UNSW, under the supervision of Dr. Xiaoyang Wang and Prof. Wenjie Zhang.

Research Interests

Graph Mining: subgraph detection, fairness-aware mining, graph analytics
Knowledge Graph Reasoning: multi-hop reasoning, retrieval-augmented generation
Large Language Models: knowledge-enhanced reasoning, interpretability, cross-source verification

News

Current - 2025

[Paper]: [Jun. 2025] Our latest work Hydra: Structured Cross-Source Enhanced Large Language Model Reasoning is now public.
[Award]: [Apr. 2025] Awarded the WWW2025 Student Travel Award (2025).
[Paper]: [Jan. 2025] Our paper Paths-over-Graph: Knowledge Graph Empowered Large Language Model Reasoning is accepted to WWW 2025.

More News - 2024

[Progress]: [May. 2024] I have obtained my MPhil degree and started my PhD journey!
[Progress]: [Apr. 2024] I have passed my MPhil Thesis Defence!
[Award]: [Jan. 2024] Awarded the CSIRO’s Data61-UNSW Joint PhD Full Scholarship.

More News - 2023

[Paper]: [Nov. 2023] Our paper Higher-order peak decomposition is accepted to CIKM 2023.
[Award]: [Nov. 2023] Awarded the CIRES-ADC Travel Grant.
[Paper]: [Jun. 2023] Our paper Maximum Fairness‑Aware (k,r)‑Core Identification in Large Graphs is accepted to ADC 2023.

Selected Publications

arXiv

Hydra: Structured Cross-Source Enhanced Large Language Model Reasoning

Xingyu Tan, Xiaoyang Wang, Qing Liu, Xiwei Xu, Xin Yuan, Liming Zhu, Wenjie Zhang

arXiv preprint, 2025.

PDF

WWW

Paths-over-Graph: Knowledge Graph Empowered Large Language Model Reasoning

Xingyu Tan, Xiaoyang Wang, Qing Liu, Xiwei Xu, Xin Yuan, Wenjie Zhang

ACM Web Conference (WWW), 2025.

PDF Code Poster Awarded Travel Grant

CIKM

Higher-Order Peak Decomposition

Xingyu Tan, Jingya Qian, Chen Chen, Sima Qing, Yanping Wu, Xiaoyang Wang, Wenjie Zhang

ACM International Conference on Information and Knowledge Management (CIKM), 2023.

PDF Code Poster

Teaching

Teaching Academic & Course Admin — Sydney, Australia
- UNSW - COMP9311 Database Systems.
  - Teaching Academic: 2023T1, 2023T3
  - Course Admin: 2024T1, 2025T1
  - Awarded Annual Best Teaching Course in CSE (2024)
- UNSW - COMP9315 Database Systems Implementation.
  - Course Admin: 2025T1
- UNSW - COMP9313 Big Data Management.
  - Teaching Academic: 2024T2
- UNSW - ZZSC9001 Foundations of Data Science.
  - Teaching Academic: 2023T3
- UoW - CSIT115 Data Management and Security .
  - Teaching Academic: 2023S2

Honors & Awards

WWW2025 Student Travel Award (2025)
CSIRO's Data61-UNSW Joint PhD Full Scholarship (2024-2028)
CIRES-ADC Travel Grant (2023)
UNSW Australia's Global University Award PUCA1026 (2022)
UNSW International Academic Excellence Award PUCE1015 (2019)