1. A computer program product for interactive clustering comprising: a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising: computer readable program code configured to access a collection of items to be clustered; computer readable program code configured to cluster the collection of items to be clustered into an initial plurality of clusters; computer readable program code configured to access user input feedback modifying one or more of cluster assignment of the initial plurality of clusters and cluster description of the initial plurality of clusters; and computer readable program code configured to re-cluster the collection of items based on the user input feedback.