Online Correlation Clustering

Claire Mathieu, Ocan Sankur & Warren Schudy
We study the online clustering problem where data items arrive in an online fashion. The algorithm maintains a clustering of data items into similarity classes. Upon arrival of v, the relation between v and previously arrived items is revealed, so that for each u we are told whether v is similar to u. The algorithm can create a new luster for v and merge existing clusters. When the objective is to minimize disagreements between the...