activity
20052023
most citedThe Single-Uniprior Index-Coding Problem: The Single-Sender Case and The Multi-Sender Extension

75 citations · 705 across the 64 of their papers we have counts for

collaborators

70 papers

cs.IT2023

Preferential Pliable Index Coding

Daniel Byrne, Lawrence Ong, Parastoo Sadeghi +1

We propose and study a variant of pliable index coding (PICOD) where receivers have preferences for their unknown messages and give each unknown message a preference ranking. We ca…

cs.IT2022

Information Leakage in Index Coding With Sensitive and Non-Sensitive Messages

Yucheng Liu, Lawrence Ong, Phee Lep Yeoh +3

Information leakage to a guessing adversary in index coding is studied, where some messages in the system are sensitive and others are not. The non-sensitive messages can be used b…

cs.IT2022

Information Leakage in Index Coding

Yucheng Liu, Lawrence Ong, Phee Lep Yeoh +3

We study the information leakage to a guessing adversary in index coding with a general message distribution. Under both vanishing-error and zero-error decoding assumptions, we dev…

cs.IT2022

Very Pliable Index Coding

Lawrence Ong, Badri N. Vellambi

In the pliable variant of index coding, receivers are allowed to decode any new message not known a priori. Optimal code design for this variant involves identifying each receiver'…

cs.IT2021

On Converse Results for Secure Index Coding

Yucheng Liu, Lawrence Ong, Parastoo Sadeghi +2

In this work, we study the secure index coding problem where there are security constraints on both legitimate receivers and eavesdroppers. We develop two performance bounds (i.e.,…

cs.IT2021★ 1 cited

Information Leakage in Zero-Error Source Coding: A Graph-Theoretic Perspective

Yucheng Liu, Lawrence Ong, Sarah Johnson +3

We study the information leakage to a guessing adversary in zero-error source coding. The source coding problem is defined by a confusion graph capturing the distinguishability bet…