Discussion of Renewal-Based Composition:
Renewal-based composition is a technique aimed at mitigating the
accumulation of privacy loss over time or across repeated analyses. It
introduces the concept of ”renewal,” where the privacy parameters are
periodically refreshed. This helps prevent the gradual degradation of
privacy due to the sequential execution of multiple analyses.
Renewal-based composition is particularly relevant in scenarios where
queries are performed periodically or when analyses are conducted on a
stream of continuously arriving data. By resetting privacy parameters at
specific intervals, renewal-based composition maintains a strong level
of privacy even in long sequences of analyses.