Search Rank explanation

["Schuh, Stefan" <St...@coi.de>]

Hi,

I just a look on lucene and I have seen, that there is really good
documentation about the indexer. I have made some test with search, and
I'm intersected, how the search ranks are build. I have taken a look on
luke, which gives some good hints, but is there a description, how the
values for the fields like fieldNorm or termFreq, ... are build, or have
I to look into the source?

Best regards

Stefan