1. A method for computing summary information on documents, wherein the method comprises: identifying, by a computer, a result set of matching documents and query-dependent subsections of the matching documents by applying a query to a set of documents, computing summary information, the summary information comprising a plurality of aggregated summary value metrics (SVMs), each of the aggregated SVMs corresponding to a different attribute-value pair in a plurality of attribute-value pairs, each of the attribute-value pairs specifying a different value of a single attribute, wherein for each of the aggregated SVMs, the aggregated SVM for an attribute-value pair is a measure of a probability that, within a given scope within the matching documents, the attribute of the attribute-value pair has the value of the attribute-value pair; and displaying a graphical user interface object that presents the summary information to a user.
1. A method for computing summary information on documents, wherein the method comprises: identifying, by a computer, a result set of matching documents and query-dependent subsections of the matching documents by applying a query to a set of documents, computing summary information, the summary information comprising a plurality of aggregated summary value metrics (SVMs), each of the aggregated SVMs corresponding to a different attribute-value pair in a plurality of attribute-value pairs, each of the attribute-value pairs specifying a different value of a single attribute, wherein for each of the aggregated SVMs, the aggregated SVM for an attribute-value pair is a measure of a probability that, within a given scope within the matching documents, the attribute of the attribute-value pair has the value of the attribute-value pair; and displaying a graphical user interface object that presents the summary information to a user. 23. The method of claim 1 , wherein computing the summary information comprises determining the aggregated SVMs by an analysis of document actions in response to the result set of the query, including one or more of: presentation of documents in the result set; user views of documents in the result set; purchases of objects represented by documents in the result set; recommending objects represented by documents in the result set; reviewing object represented by documents in the result set; presentation of navigator entries in the result set; and user selection and query refinement of navigator entries.