Patent ID: 7359899

Claim:
A computer-implemented method for determining a rating for a first collection of documents, the method comprising: determining a first collection rating according to a first rating scale, said first collection rating relating to a desirability of content of the documents of the collection; determining a first link rating according to said first rating scale, said first link rating relating to a desirability of content of another document, said content of another document linked with the content of a collection document; modifying said first collection rating based on said determined first link rating; wherein said determining of a first collection rating comprises determining said first collection rating based on document ratings of a first subset of documents of the first collection of documents, and sizes of the documents of the first subset of documents of first document collection; and wherein said determining of the first collection rating comprises computing the first collection rating according to said rating scale as follows: CR = ∑ i . j ⁢ ⁢ r i ⁢ w j ⁢ log ⁡ ( N ij + 1 ) ∑ i . j ⁢ ⁢ w j ⁢ log ⁡ ( N ij + 1 ) where CR is collection rating for said rating scale; r i is a weight applied for document rating group i; w i is a weight applied for document size group j; N ij is a number of pages in a collection with document rating i and having group sizes j for said rating scale.