5. The method of claim 4 , wherein computing the summary of a respective node further comprises: initializing an available set of parameters associated with hyperlinks and subnodes of a respective node; repeatedly choosing a set of parameters associated with hyperlinks of the respective node that has the highest weight from the available set of parameters; and adding anchor text associated with the chosen set of parameters having the highest weight to the summary.
4. The method of claim 1 , wherein computing the summary of a respective node further comprises receiving a node identifier, a maximum number of information items associated with the node and a term table.