PSSR generalizes MPIR to structured demand families, derives converse bounds on rate and subpacketization, and provides an optimization framework that recovers known MPIR schemes while improving on them for restricted demands.
The Asymptotic Capacity of Private Search
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Private Structured-Subset Retrieval
PSSR generalizes MPIR to structured demand families, derives converse bounds on rate and subpacketization, and provides an optimization framework that recovers known MPIR schemes while improving on them for restricted demands.