cpoerschke opened a new pull request, #1073:
URL: https://github.com/apache/solr/pull/1073

   Highly experimental and rather partial e.g. `Bert.load(modelFile)` has lots 
of issues finding the dependencies, the code is incomplete and there is no 
documentation as yet. Sharing as-is draft all the same.
   
   ## Outline
   
   Use https://github.com/robrua/easy-bert for plugging BERT models into Solr.
   
   ### Search
   
   something e.g. `{!bert_knn f=vector}foobar` as alternative to `{!knn 
f=vector}[1.0, 2.0, 3.0, ...]` via `solrconfig.xml`
   
   ```
   <queryParser name="bert_knn" 
class="org.apache.solr.bert.search.BertKnnQParserPlugin" >
      <str name="modelFile">pathToModelFile</str>
   </queryParser>
   ```
   
   ### Indexing (not yet part of this pull request)
   
   something (update processor?) to do vector computation inside Solr
   
   ```
   <updateProcessor 
class="org.apache.solr.bert.index.BertUpdateProcessorFactory" name="bert">
     <str name="inputField">headline</str>
     <str name="outputField">headline_vector</str>
   </updateProcessor>
   ```


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