| 主权项 |
1. A method of visually representing a hierarchy of category nodes, said method comprising:
in a computing device, tracking access by a user to a document containing text; comparing, by a processor, the text contained in the accessed document with text contained in articles in a labeled text data source; determining, by the processor, in the labeled text data source, a subset of the articles that contain text that is similar to the text of the accessed document, wherein the articles in the labeled text data source are each assigned with one or more concepts relevant to text of the article; determining, by the processor, one or more concepts relevant to the accessed document to be the one or more concepts assigned to the determined subset of articles in the labeled text data source; determining one or more category paths through the hierarchy of category nodes for the one or more concepts relevant to the accessed document, wherein each of the one or more category paths is weighted according to a relevance between the one or more category paths and respective ones of the one or more concepts relevant to the accessed document; determining relevance levels for the category nodes with respect to the one or more concepts relevant to the accessed document based upon the one or more category paths; constructing a graph depicting a visual representation of the relevance levels determined for each of the category nodes in the hierarchy of category nodes; generating a visual representation of the one or more concepts relevant to the accessed document, wherein the visual representation of the one or more concepts relevant to the accessed document graphically depicts at least one distinguishing characteristic associated with the tracked access to the document and depicts those category paths that have been generated for the one or more concepts relevant to the document that have been accessed while omitting concepts relevant to documents that have not been accessed; and displaying the category nodes linearly according to their hierarchy level in the visual representation of the relevance levels, wherein a line connects a selected category node in one hierarchy level with another selected category node in a lower hierarchy level, wherein the visual representation of the relevance levels includes a tag cloud containing the one or more concepts relevant to the accessed documents arranged linearly with the category nodes, and wherein the visual representation of the relevance levels further includes an articles list depicted below the category nodes. |
