ABCD: Algorithm for Balanced Component Discovery in Signed Networks

Muhieddine Shebaro, Jelena Tesic

Abstract: The most significant balanced element in signed graphs plays a vital role in helping researchers understand the fundamental structure of the graph, as it reveals valuable information about the complex relationships between vertices in the network. The challenge is an NP-hard problem; there is no current baseline to evaluate state-of-the-art signed graphs derived from real networks. In this paper, we propose a scalable state-of-the-art approach for the maximum balanced sub-graph detection in the network of \emph{any} size. However, it is still bounded by computational capability. The proposed approach builds on the graph characteristics and a scalable fundamental cycle discovery method to minimize the number of vertices discarded. We evaluate the proposed approach against state-of-the-art and demonstrate over two times higher graph size regarding the number of vertices selected of the discovered subset on an extensive signed network with millions of vertices and edges over the state-of-art in the same time frame.