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From "Michael A. Alcorn (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-11386) Extracting learning to rank features fails when word ordering of EFI argument changed.
Date Mon, 16 Oct 2017 17:12:00 GMT

    [ https://issues.apache.org/jira/browse/SOLR-11386?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16206223#comment-16206223
] 

Michael A. Alcorn commented on SOLR-11386:
------------------------------------------

I should also clarify that I do not want a phrase query, i.e., the order of the tokens should
not matter (I'm still learning Solr jargon).

> Extracting learning to rank features fails when word ordering of EFI argument changed.
> --------------------------------------------------------------------------------------
>
>                 Key: SOLR-11386
>                 URL: https://issues.apache.org/jira/browse/SOLR-11386
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: contrib - LTR
>    Affects Versions: 6.5.1
>            Reporter: Michael A. Alcorn
>         Attachments: solr_efi_examples.zip
>
>
> I'm getting some extremely strange behavior when trying to extract features for a learning
to rank model. The following query incorrectly says all features have zero values:
> {code}
> http://gss-test-fusion.usersys.redhat.com:8983/solr/access/query?q=added couple of fiber
channel&rq={!ltr model=redhat_efi_model reRankDocs=1 efi.case_summary=the efi.case_description=added
couple of fiber channel efi.case_issue=the efi.case_environment=the}&fl=id,score,[features]&rows=10
> {code}
> But this query, which simply moves the word "added" from the front of the provided text
to the back, properly fills in the feature values:
> {code}
> http://gss-test-fusion.usersys.redhat.com:8983/solr/access/query?q=couple of fiber channel
added&rq={!ltr model=redhat_efi_model reRankDocs=1 efi.case_summary=the efi.case_description=couple
of fiber channel added efi.case_issue=the efi.case_environment=the}&fl=id,score,[features]&rows=10
> {code}
> The explain output for the failing query can be found here:
> https://gist.github.com/manisnesan/18a8f1804f29b1b62ebfae1211f38cc4
> and the explain output for the properly functioning query can be found here:
> https://gist.github.com/manisnesan/47685a561605e2229434b38aed11cc65



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