You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@lucene.apache.org by "Michael A. Alcorn (JIRA)" <ji...@apache.org> on 2017/11/01 18:27:00 UTC
[jira] [Commented] (SOLR-11386) Extracting learning to rank
features fails when word ordering of EFI argument changed.
[ https://issues.apache.org/jira/browse/SOLR-11386?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16234526#comment-16234526 ]
Michael A. Alcorn commented on SOLR-11386:
------------------------------------------
To close the loop on this, the issue is that the FieldQParser [automatically converts multiple terms into phrases|https://lucene.apache.org/solr/guide/6_6/other-parsers.html#OtherParsers-FieldQueryParser].
> 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
> Priority: Major
> 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
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org