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Robust Private Information Retrieval on Coded Data
Razane Tajeddine, Salim El Rouayheb · 2017-07-31 · via cs.IT updates on arXiv.org

We consider the problem of designing PIR scheme on coded data when certain nodes are unresponsive. We provide the construction of $ν$-robust PIR schemes that can tolerate up to $ν$ unresponsive nodes. These schemes are adaptive and universally optimal in the sense of achieving (asymptotically) optimal download cost for any number of unresponsive nodes up to $ν$.

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