search for: lengthnorm

Lucene, and perhaps most search engines, are biased towards small fields with little content (where thus the term frequency is higher). Lucene has the option to define a custom (Similarity) class to calculate the similarity between two fields (custom calculation of lengthNorm and tf) in different documents. But how do I do this in ferret? (I know to boost a field, but this is not what I (think to) need, I need to be able to influence the relative importance between the same field) -- Posted via http://www.ruby-forum.com/.