Patent ID: 8543576

Claim:
A method comprising: receiving a set of clusters of documents; for each cluster in the set of clusters, calculating a similarity score for the cluster wherein the similarity score is based at least in part on features included in the documents in the cluster and indicates a measure of similarity of the documents in the cluster; for each cluster associated with a respective similarity score greater than a first threshold, identifying the cluster as satisfying a quality assurance requirement; for each cluster associated with a respective similarity score less than a second threshold, identifying the cluster as failing the quality assurance requirement, wherein the second threshold is less than the first threshold; for each cluster associated with a similarity score less than or equal to the first threshold value and greater than or equal to the second threshold value, reviewing at least a subset of documents in the cluster to determine whether the cluster satisfies the quality assurance requirement; and associating a label with each cluster in the set of clusters, wherein the label indicates whether the cluster satisfied the quality assurance requirement.