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Qingzhi Ma

Tencent

3 papers hereh-index 5213 citations15 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • sole author1
  • middle author1
  • last author1

Across the 3 of 3 papers where every author was matched, so the position is known.

fields
  • cs.DB3
affiliations
  • Tencent
  • University of Warwick
Homepage
same name
  • Qingzhi Ma — 3 papers, h 2

Either other researchers who publish under this name, or the same person where the external sources have not merged their records.

identity via Semantic Scholar / OpenAlex

activity
20222025
most citedWeighted Random Sampling over Joins

3 citations · 4 across the 3 of their papers we have counts for

collaborators

3 papers

cs.DB2025★ 1 cited

E3-Rewrite: Learning to Rewrite SQL for Executability, Equivalence,and Efficiency

Dongjie Xu, Yue Cui, Weijie Shi +9

SQL query rewriting aims to reformulate a query into a more efficient form while preserving equivalence. Most existing methods rely on predefined rewrite rules. However, such rule-…

cs.DB2023

SieveJoin: Boosting Multi-Way Joins with Reusable Bloom Filters

Qingzhi Ma

Improving data systems' performance for join operations has long been an issue of great importance. More recently, a lot of focus has been devoted to multi-way join performance and…

cs.DB2022★ 3 cited

Weighted Random Sampling over Joins

Michael Shekelyan, Graham Cormode, Peter Triantafillou +2

Joining records with all other records that meet a linkage condition can result in an astronomically large number of combinations due to many-to-many relationships. For such challe…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.