4 papers
Visibility Queries in Simple Polygons
Sujoy Bhore, Chih-Hung Liu, Anurag Murty Naredla +6
Given a simple polygon with vertices, we consider the problem of constructing a data structure for visibility queries: for any query point , compute the visibility…
An Optimal Sorting Algorithm for Persistent Random Comparison Faults
Barbara Geissmann, Stefano Leucci, Chih-Hung Liu +1
We consider the problem of sorting elements subject to persistent random comparison errors. In this problem, each comparison between two elements can be wrong with some fixed (…
Robust Sparse Regression with Non-Isotropic Designs
Chih-Hung Liu, Gleb Novikov
We develop a technique to design efficiently computable estimators for sparse linear regression in the simultaneous presence of two adversaries: oblivious and adaptive. We design s…
Private graphon estimation via sum-of-squares
Hongjie Chen, Jingqiu Ding, Tommaso d'Orsi +3
We develop the first pure node-differentially-private algorithms for learning stochastic block models and for graphon estimation with polynomial running time for any constant numbe…