Techniques for providing information about large data sets may be provided. For example, a summary of the data sets and of patterns between the data sets may be presented. Traffic associated with a network-based resource that includes a number of documents may be an example of large data sets. The traffic may be analyzed and traffic patterns may be determined. A structure may be generated based on the traffic patterns and may use nodes to represent the documents. Further, a visualization of the structure may be presented. The visualization may include recursive clusters of the nodes, where the clusters may be labeled based on the respective clustered nodes.