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DP-starJ: A Differential Private Scheme towards Analytical Star-Join Queries. (arXiv:2310.04711v3 [cs.CR] UPDATED)
cs.CR updates on arXiv.org arxiv.org
Star-join query is the fundamental task in data warehouse and has wide
applications in On-line Analytical Processing (OLAP) scenarios. Due to the
large number of foreign key constraints and the asymmetric effect in the
neighboring instance between the fact and dimension tables, even those latest
DP efforts specifically designed for join, if directly applied to star-join
query, will suffer from extremely large estimation errors and expensive
computational cost. In this paper, we are thus motivated to propose DP-starJ, a
novel …
applications constraints data data warehouse effect fact instance key large latest private query star tables task