: Subject: Fallback Local Requests
...
: if this query returns 0 results then
: -->fire a fallback query after changing the value of size_min and
: size_max
I strongly advise anyone who asks me 99% of the time "fall back" queries
for 0 results found are a really bad idea, because they can easily create
very strange user experiences.
Check out slide #11, the "Fallback" example ~ 14:50 ...
https://people.apache.org/~hossman/ac2012eu/#slide11
http://vimeopro.com/user11514798/apache-lucene-eurocon-2012/video/55822630
...watch the whole video for an in depth discussion on how to take
advantage of domain knowledge to *boost* documents based on important
criteria so they score higher instead of using sledgehammers like fallback
queries.
-Hoss
http://www.lucidworks.com/
