Re: Problem building fuzzy suggestions

[Fundera Developer]

Following on this, I have been able to make Solr load correctly by 
replacing the line in the solrconfig.xml:

   <str name="lookupImpl">JaspellLookupFactory</str>

with the fully qualified class name:

   <str
   
name="lookupImpl">org.apache.solr.spelling.suggest.jaspell.JaspellLookupFactory</str>


and now I can, as I said, start Solr, build the suggestions and run 
them. However, I am still getting nothing "fuzzy". If I query with 
"managem", I get several suggestions ("management" among them), but 
trying with "managm" or "manahem" does not provide any suggestions, even 
if I configure the accuracy parameter as low as 0.5 (and reindex, of 
course).

Am I doing something wrong? Is there any better alternative to getting 
fuzzy suggestions?

Thanks in advance!!



El 02/04/2016 a las 20:27, Fundera Developer escribió:
Hi all,

At present I am providing suggestions in my app with this 
configuration in my solrconfig.xml:

      <searchComponent name="suggest" class="solr.SuggestComponent">
        <lst name="suggester">
          <str name="name">mySuggester</str>
          <str name="lookupImpl">WFSTLookupFactory</str>
          <str name="field">spellchk</str>
          <float name="threshold">0.005</float>
          <str name="buildOnOptimize">true</str>
          <str name="buildOnStartup">true</str>
        </lst>
      </searchComponent>
      <requestHandler name="/suggest" class="solr.SearchHandler"
   startup="lazy" >
        <lst name="defaults">
          <str name="suggest">true</str>
          <str name="suggest.dictionary">mySuggester</str>
          <str name="suggest.count">5</str>
        </lst>
        <arr name="components">
           <str>suggest</str>
        </arr>
      </requestHandler>


However, I would like to provide fuzzy suggestions, so that if the 
user types "managme", I can suggest "management". Based on the 
documentation I found on the wiki and googling, I tried with this 
configuration:

      <searchComponent name="suggest" class="solr.SuggestComponent">
        <lst name="suggester">
          <str name="name">mySuggester</str>
          <str name="lookupImpl">JaspellLookupFactory</str>
          <str name="field">spellchk</str>
          <str name="accuracy">0.6</str>
          <str name="buildOnOptimize">true</str>
          <str name="buildOnStartup">true</str>
        </lst>
      </searchComponent>


But if I start my Solr instance with that configuration, I get this 
error in the log:

   2016-04-02 18:24:26.018 ERROR (coreLoadExecutor-6-thread-1) [    
x:funderatenders] o.a.s.c.CoreContainer Error creating core [myapp]:
   Error loading class 'JaspellLookupFactory'
   org.apache.solr.common.SolrException: Error loading class
   'JaspellLookupFactory'
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:820)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:658)
        at
org.apache.solr.core.CoreContainer.create(CoreContainer.java:814)
        at
org.apache.solr.core.CoreContainer.access$000(CoreContainer.java:87)
        at
org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:467)
        at
org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:458)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at
org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor$1.run(ExecutorUtil.java:231)
        at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)


What is the correct way to use and configure the JaspellLookupFactory, 
or where can I find documentation on it?

Thanks in advance!