Hengjia Wei

activity

20142017

most citedOn private information retrieval array codes

20 citations · 21 across the 3 of their papers we have counts for

collaborators

3 papers

math.CO2017★ 1 cited

A strengthened inequality of Alon-Babai-Suzuki's conjecture on set systems with restricted intersections modulo p

Xin Wang, Hengjia Wei, Gennian Ge

Let $K = {k_{1}, k_{2}, \dots, k_{r}}$ and $L = {l_{1}, l_{2}, \dots, l_{s}}$ be disjoint subsets of ${0, 1, \dots, p - 1}$ , where $p$ is a prime and $A = {A_{1}, A_{2}, \dots, A_{m}}$ be a family of subset…

cs.IT2016★ 20 cited

On private information retrieval array codes

Yiwei Zhang, Xin Wang, Hengjia Wei +1

Given a database, the private information retrieval (PIR) protocol allows a user to make queries to several servers and retrieve a certain item of the database via the feedbacks, w…

cs.IT2014

Optimal Ternary Constant-Composition Codes with Weight Four and Distance Six

Wei Hengjia, Zhang Hui, Zhu Mingzhi +1

The sizes of optimal constant-composition codes of weight three have been determined by Chee, Ge and Ling with four cases in doubt. Group divisible codes played an important role i…