Setting FuzzyConfig's prefixLength ?

[Phill Tornroth]

I'd like to change Lucene's FuzzyConfig prefixLength from it's default
value of 0. Is there a way to configure that via Solr somehow? I've noticed
references on the list to people recompiling lucene from source in order to
change this value, and I'm hoping not to need to resort to the same.

Thanks in advance,
Phill

Per-User Sorting on an ExternalFileField

[Phill Tornroth]

I'm trying pretty hard to come up with a solution that lets me sort by
per-user scores that I calculate based on my data. Today, I'm trying to use
a combination of ExternalFileField and dynamic fields, where the
presumption is that each user might have their own file full of scores. I
think the fields are hooked up okay, but I can't sort on them because it
appears ExternalFileField explicitly doesn't support this operation.

SEVERE: java.lang.UnsupportedOperationException
at
org.apache.solr.schema.ExternalFileField.getSortField(ExternalFileField.java:91)


I'm using Solr 3.5. Does anyone have a suggestion as to how to end up
adding this extra dimension so that I can do per-user relevance? It seems
like an oft-asked, rarely-answered question.

Thanks in advance,

Phill

Re: Per-User Sorting on an ExternalFileField

[Phill Tornroth]

So, I did just issue:

   sort=sub(my_user_score_field,0)+desc

It got me past the error, but still doesn't appear to be actually using the
values to sort. Any ideas as to why?

Phill

On Thu, Apr 26, 2012 at 4:35 PM, Stephane Bailliez sbaill...@gmail.comwrote:

 On Fri, Apr 27, 2012 at 12:07 AM, Phill Tornroth famousactr...@gmail.com
 wrote:

  I'm using Solr 3.5. Does anyone have a suggestion as to how to end up
  adding this extra dimension so that I can do per-user relevance? It seems
  like an oft-asked, rarely-answered question.
 

 Use a function that make use of your externalfilefield and alter the score
 so that you can sort on the score ?

Sorting Index Results by User's Score

[Phill Tornroth]

I'm puzzled on whether or not Solr is the right system for solving this
problem I've got. I'm using some Solr indexes for autocompletion, and I
have a desire to rank the results by their value to the requesting user.
Essentially, I'll tally the number of times the user has chosen particular
results, and I have a need to include that value in the process of sorting
and limiting results.

This doesn't seem like a request that would be un-typical, but I'm
wondering how Solr experts suggest it be done? It seems impractical to hold
my scores elsewhere and ask Solr for unlimited results and then do the
ordering/limiting on my side.. but I don't see an obvious way to do this
within Solr itself, though the JOIN functionality and the Function Query
stuff look like they might be a part of the right solution.

Any help would be greatly appreciated.

Thanks!

Phill