Graph Constructions for Matrix Completion

Published:Dec 30, 2025 21:16
1 min read
ArXiv

Analysis

This paper explores deterministic graph constructions that enable unique and stable completion of low-rank matrices. The research connects matrix completability to specific patterns in the lattice graph derived from the bi-adjacency matrix's support. This has implications for designing graph families where exact and stable completion is achievable using the sum-of-squares hierarchy, which is significant for applications like collaborative filtering and recommendation systems.

Reference

The construction makes it possible to design infinite families of graphs on which exact and stable completion is possible for every fixed rank matrix through the sum-of-squares hierarchy.