Before revision:  In this paper, a speaker identification baseline is improved by re-ranking candidate speakers based on the frequency of previous interactions between speakers and the topology of the criminal network. The proposed method can be applied to conversations involving two or more speakers. We show that our approach outperforms the baseline speaker accuracy by 1.3 \% absolute ( 1.5 \% relative), and the conversation accuracy by 3.7 \% absolute ( 4.7 \% relative) on CSI  data.
After revision:  In this paper, a speaker identification baseline is improved by re-ranking candidate speakers based on the frequency of previous interactions , we improve the speaker identification baseline by 1.2 \% absolute ( 1.5 \% relative), and the conversation accuracy by 3.7 \% absolute ( 4.7 \% relative) on CSI data.