Estimating Sparse Discrete Distributions Under Local Privacy and Communication Constraints
Estimating Sparse Discrete Distributions Under Local Privacy and Communication Constraints
复制标题
估计本地隐私和通信约束下的稀疏离散分布
DOI:
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Ziteng Sun
中科院分区:
文献类型:
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作者:
Jayadev Acharya;Yuhan Liu;Ziteng Sun
We consider the task of estimating sparse discrete distributions under local differential privacy and communication constraints. Under local privacy constraints, we present a sample-optimal private-coin scheme that only sends a one-bit message per user. For communication constraints, we present a public-coin scheme based on random hashing functions, which we prove is optimal up to logarithmic factors. Our results show that the sample complexity only depends logarithmically on the ambient dimension, thus providing significant improvement in sample complexity under sparsity assumptions. Our lower bounds are based on a recently proposed chi-squared contraction method.
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影响因子:
6
作者:
Leighton Pate Barnes;Yanjun Han;Ayfer Ozgur
通讯作者:
Ayfer Ozgur
影响因子:
2.5
作者:
Jayadev Acharya;C. Canonne;Himanshu Tyagi
通讯作者:
Jayadev Acharya;C. Canonne;Himanshu Tyagi
影响因子:
2.5
作者:
Wang, Di;Xu, Jinhui
通讯作者:
Xu, Jinhui
DOI:
10.1109/jsait.2020.3039461
发表时间:
2020
期刊:
IEEE Journal on Selected Areas in Information Theory
影响因子:
--
作者:
Barnes, Leighton Pate;Chen, Wei-Ning;Ozgur, Ayfer
通讯作者:
Ozgur, Ayfer