New Duplicate Content and Mapping Patents from Google – January 2, 2007

Google was granted new patents this week on a methods for estimating similarity between web pages and documents which may help to filter duplicate content, and upon a digital mapping system which appears to be the foundation for Google Maps, and has a number of related map-based patent applications in its wake. Finding Similarity in Pages and Objects The patent on duplicate and near duplicate content, Methods and apparatus for estimating similarity (US Patent 7,158,961), list Moses Samson Charikar as its inventor, and was granted this morning, and originally filed on December 31, 2001. Abs [...]

PhraseRank, Not PageRank, To Fight Search Spam

Can indexing phrases from pages be an effective approach in identifying and filtering keyword stuffed pages, and honeypot pages aimed at attracting visitors solely to have them click upon ads? A new patent application published yesterday and assigned to Google, Detecting spam documents in a phrase based information retrieval system, presents a reasonable argument in favor of the method. Ok, so "Phraserank" doesn't appear in the document. But it's a term that might be worth thinking about. It may do much more than just help fight spam. Danny noticed that I had a long writeup this morning [...]

How Google Sitelinks May Work, From Patent Application

Back in September, Vanessa Fox at the Official Google Blog shared with us a little information about sitelinks, the groups of links to internal pages that sometimes appear under the top result on a search results page. She also pointed to a page on Google's Webmaster Help Center that provides some more details. A patent filing with a pretty generic name, Systems and methods for providing search results came out last week on these extra internal links. It held a couple of surprises... The first was how much Google relied upon log file analysis and measuring user behavior (including toolb [...]

Google Launches Google Patents, Full-Text US Patent Searching

Google has rolled out a new Google Patents search engine (Official Google Blog post here), allowing people to search across the full-text of US patents from 1790 through the middle of 2006. The company plans to update the service further with more 2006 filings and move to a weekly or better refresh schedule in the future. US patents can already be searched by the general public using, among other resources, the search service provided by the US Patent & Trademark Office. So why bother with a new service from Google? "We've really applied the Google experience to it. It's easier so you [...]

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