Google new patent overview
April 26th, 2005Google recently filed patent named “Information retrieval based on historical data". This patent contains points related to algorithm Google uses/will use, to rank web pages.
The major part of the patent deals with links. As we know that google relies on links in a great way to rank web pages. Historical information is the new entrant other then the page rank, anchor text, and number of links. Lets have a look at some of the points mentioned in the patent (it is not actual patent lines but my understanding between the lines of the patent):
- Discovery dates of the links with anchor text are recorded.
- Appearance and disappearance of link could be monitored
- Growth rate of the links could also be monitored.
- Rate at which links appear and disappear could be monitored as well
- Change in anchor text with time could be recorded.
- Permanent links will get high rating then non-permanent one.
- Appearance of links, slow and constant gets a higher rating.
- Multiple anchor text for a site will be given higher preference.
- Sudden link growth could be considered as Spam.
- New website with large number of links would be considered somewhat Spam
- Links from pages that is updated regularly will be considered more important.
- Old pages with fresh links will be considered as fresh.
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