: That link appears to be referring to normalized scores (everything is < : 1.0). Is it also not safe to use a threshold for raw scores?
Nope. The basic flaw in comparing scores between two queries still holds ... early messages in the threads linked to go into more detail, but as i recall, the basic problem has to do with the way idf and docFreq come into play. Just becuase a term query for foo:bar says that document A has a score of 2.2 and B has a score of 6.6; and a term query for yak:baz says that document X has a score of 2.2 and Y has a score of 6.6 doesn't means X is as relevent to yak:baz as A is to foo:bar -- it just means that the relative quality of B compared to A is the same as the relative quality of Y compared to X for their respective queries. (once their normalized, even that goes out the window) the only way I can think of to fairly compare scores from queries for foo:bar with queries for yak:baz is to normalize them relative a maximum possible score across the entire term query space -- but finding that maximum is a pretty complicated problem just for simple term queries ... when you start talking about more complicated query structures you really get messy -- and even then it's only fair as long as the query structures are identical, you can never compare the scores from apples and oranges. -Hoss --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
