This one is relevant to SEO because it describes a method for predicting how difficult a query is for a generic search engine.
Patent
QUOTE
"Most search engines have difficulty answering certain queries. For example, consider the query “What impact has the Chunnel had on the British economy and/or the life style of the British?” Most search engines will return many irrelevant documents, containing the words ‘British’, ‘life’, ‘style’, ‘economy’, etc. But the gist of the query, the Chunnel, is usually lost.
There has been a movement to predict the quality of a search results."
There has been a movement to predict the quality of a search results."
How do you think it would be implemented in a search engine?
What do you think it would be most useful for from a user point of view?
How do you think this kind of method would impact current SEO techniques if it was widely implemented?









