I'd go ahead and do the query time boosts. The "penalty" will be a single multiplication per doc (I think), and probably not noticeable. And it's much more flexible/easier...
Best Erick On Thu, Mar 15, 2012 at 9:21 PM, Arcadius Ahouansou <arcad...@menelic.com> wrote: > Hello. > > I have an SQL database with documents having an ID, TITLE and SUMMARY. > I am using the DIH to index the data. > > In the DIH dataConfig, for every document, I would like to do something > like: > > <field column="TITLE" name="title"* boost="2.0"* /> > > In other words, "A match on any document's title is worth twice as much as > a match on other fields" > > In my schema, I have omitNorms set to false. > > 1) How can I do this in the DIH? > > 2) Apart from omitNorms making the index bigger, I thought that index-time > boost would give us more performance than doing the very same boosting at > query time over and over again. > Is that correct? > > 3) I also came across the Lucene FAQ at > http://wiki.apache.org/lucene-java/LuceneFAQ#What_is_the_difference_between_field_.28or_document.29_boosting_and_query_boosting.3F > > where the following interesting statement seems to contradict what I'm > trying to achieve: > > *Index time field boosts are worthless if you set them on every document. * > > Any hint would be much appreciated. > > > Thanks. > > Arcadius.
