41. A computer-implemented system comprising: one or more devices to: identify a document that is relevant to a search term; identify a tree representation of the document, where pages of the document correspond to leaf nodes, parts of the document correspond to higher level nodes, and the document corresponds to a root node; assign scores to the leaf nodes based on whether the leaf nodes contain occurrences of the search term; determine scores for the higher level nodes based on the scores of associated ones of the leaf nodes; determine a score for the root node based on the scores of the higher level nodes; provide a threshold, where the threshold is threshold is based on at least one of: a number of pages associated with one of the leaf nodes, a number of pages associated with one of the higher level nodes, or a number of pages associated with the root node; select one of the leaf nodes, one of the higher level nodes, or the root node, as a selected node, based on the scores and the threshold; and provide information relating to the selected node.
43. The computer-implemented system of claim 41 , where the one or more devices are further to: assign a score of 0 to a leaf node that contains no occurrence of the search term; and assign, to a leaf node that contains an occurrence of the search term, a score that is a function of an importance of the occurrence of the search term.