Hilltop:
http://www.seo-lab.com/google-articl...rs/Hilltop.php
Here's the main part from the abstract:
Quote:
|
Originally Posted by Google Hilltop
In this paper, we propose a novel ranking scheme for broad queries that places the most authoritative pages on the query topic at the top of the ranking. Our algorithm operates on a special index of "expert documents." These are a subset of the pages on the WWW identified as directories of links to non-affiliated sources on specific topics. Results are ranked based on the match between the query and relevant descriptive text for hyperlinks on expert pages pointing to a given result page.
|