James E. Pitkow

System and method for searching and recommending documents in a collection using share bookmarks

System and method for clustering data objects in a collection

Prefetching and caching documents according to probability ranked need S list

System for categorizing documents in a linked collection of documents

System for predicting documents relevant to focus documents by spreading activation through network representations of a linked collection of documents

System and method for quantitatively representing data objects in vector space

System and method for providing recommendations based on multi-modal user clusters

System and method for identifying similarities among objects in a collection

Usage based methods of traversing and displaying generalized graph structures

System for ranking search results from a collection of documents using spreading activation techniques