3 papers
cs.IT2026
A Disguise-and-Squeeze PIR Scheme for the MDS-TPIR Setting and Beyond
Rui Sun, Ran Tao, Jingke Xu +1
We consider the problem of private information retrieval (PIR) from MDS coded databases with colluding servers, i.e., MDS-TPIR. In the MDS-TPIR setting, files are stored across…
cs.IT2026
Reducing The Sub-packetization Level of Optimal-Access Cooperative MSR Codes
Yaqian Zhang, Jingke Xu
Cooperative MSR codes are a kind of storage codes which enable optimal-bandwidth repair of any node erasures in a cooperative way, while retaining the minimum storage as a…
cs.IT2024
Calculating the I/O Cost of Linear Repair Schemes for RS Codes Evaluated on Subspaces via Exponential Sums
Zhongyan Liu, Jingke Xu, Zhifang Zhang
The I/O cost, defined as the amount of data accessed at helper nodes during the repair process, is a crucial metric for repair efficiency of Reed-Solomon (RS) codes. Recently, a fo…