12. A process for enhancing initial search results obtained from a search engine on a computer using a user access log, comprising: segmenting the user access log into browsing sessions; extracting implicit links of pages from the browsing session using a two-item sequential pattern mining technique; generating an implicit links graph from the implicit links of pages; generating two-item sequential patterns from the implicit links of pages; updating the implicit links graph using the two-item sequential patterns to obtain an updated implicit links graph; re-ranking the initial search results using the updated implicit links graph and a modified implicit link analysis technique to generate updated search results; and displaying the updated search results to a user.
14. The process as set forth in claim 12 , wherein the modified implicit link analysis technique uses a modified re-ranking formula.