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What is the maxiimum boost factor value for a word in Lucene.Net? I believe default value is 1.0f
Thanks!
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I've found evidence on Google that it's at least 4... but I can't find any further information as to what the ceiling is. Some of the document importance descriptions use 4 as an example which is where I drew my conclusion.
However the user documentation defines that it must be a positive number which may be less than 1 (presumably, given some of the examples it may also not be less than 1).
Draw from that as you will.
It can be any positive number. Of course, if you pick an unreasonable number, like Float.POSITIVE_INFINITY (or the .NET equivalent), you'll end up with some crazy scores. Generally, you want to look at your boosts as a percentage: 1.0F is 100%, meaning no boost up or down. 1.2F is 120%, a little boost up; 0.5 is 50%, a fairly significant boost down.