A method and apparatus combining spreading activation and citation analysis techniques to find related documents in collections of linked documents. Spreading activation is an analysis technique that may be used to find documents relevant to a set of focus documents. Citation analysis is an analysis...http://www.google.de/patents/US6286018?utm_source=gb-gplus-sharePatent US6286018 - Method and apparatus for finding a set of documents relevant to a focus set using citation analysis and spreading activation techniques
