Chao Zhang

Chao Zhang

PhD Candidate

Room: C212, Exactum building, Kumpula campus, University of Helsinki



Chao Zhang is a Ph.D. candidate at Department of Computer Science, University of Helsinki. His supervisor is Jiaheng Lu. Prior to joining UH, he spent one year in Renmin University of China and seven years in GuiZhou University. His current research topic focus on performance evaluation and optimization for multi-model databases.



  1. UniBench: A Benchmark for Multi-Model Database Management Systems. TPCTC 2018
  2. [paper] [slides]
  3. Parameter Curation and Data Generation for Benchmarking Multi-model Queries. VLDB 2018 PhD
  4. [paper]
  5. UDBMS: Road to Unification for Multi-model Data Management. ER 2018 [paper]


Awards, Scholarships and Honors

  • International Student Scholarship in Finland (EDUFI), at University of Helsinki
  • China Scholarship (CSC), at Renmin University
  • National Graduate Student Scholarship in China, at GuiZhou University

Useful links

Academic Services

  • Reviewer
    • IEEE ICDE Conference (2017 2019)
    • Australia Database Conference (ADC 2019)
    • ER Conference 2018