1) document boost is periodicaly recomputed with age as a factor (or
log(age)). It should be slow.
2) Use your own Similarity implementation. Use the DefaultSimilarity
with a dynamic document boost. The Map document id -> age or document id
-> date should be cached with Map, ehCache, whirlcache,
Sorry, I really should have directly explained what I was looking to
do: theserverside.com give higher scores to documents that were added
more recently.
I'd like to do the same, without the date boost being too overbearing
(or unnoticeable...) - some ideas on how to approach this would be