It's Spring in the Northern Hemisphere. Seasonal allergies ahoy! 

This is the weekly update from the Discovery department for the week starting 2017-03-20 and the week of 2017-03-27.

== Highlights ==

* Finished up the analysis of the first A/B test for the sister project search results [10] [11]

== Discussions ==

=== Search ===
* Updates from work done in previous weeks (apologies for the delay!):
** Fixed an issue where subpages were mistakenly preferred over parent pages if you didn't type the whole title [0]
** Fixed multiple issues with the how Elasticsearch integrates with the Translate extension [1] [2] [3]
** Test wiki with new Chinese Traditional-to-Simplified conversion, better word segmentation, and using the new BM25 is available in labs. [4] (It has the index and snippets from Chinese Wikipedia, but not the actual articles.) Additional analysis from native-speaker review is also on MediaWiki. More feedback always welcome. [5]
* Fixed regressions which seem to be related to Elasticsearch 5 upgrade:
** Fixed an issue causing language-converted suggestions to not show in the search box [6]
* Fixed an issue where using certain special characters in advanced search syntax would unexpectedly give zero results [7]
* Finished the second A/B test for the sister project search results.
* The analysis of new Ukrainian language analyzer is on MediaWiki, and there's lots of good discussion on Phabricator. More feedback welcome! [8] [9]

=== Analysis ===
* Finished up the analysis of the first A/B test for the sister project search results (task T156300) read it here [10] [11]

=== Wikidata Query Service ===
* Enabled SPARQL Federation [12]
* Enabled parametrized query templates in the GUI [13]

[0] https://phabricator.wikimedia.org/T156840
[1] https://phabricator.wikimedia.org/T132076
[2] https://phabricator.wikimedia.org/T132315
[3] https://phabricator.wikimedia.org/T158070
[4] http://zh-wp-smartcn-relforge.wmflabs.org/w/index.php?title=Special:搜索
[5] https://www.mediawiki.org/wiki/User:TJones_(WMF)/Notes/Chinese_Analyzer_Analysis#Interesting_Examples_from_Native_Speaker_Review
[6] https://phabricator.wikimedia.org/T160896
[7] https://phabricator.wikimedia.org/T147636
[8] https://www.mediawiki.org/wiki/User:TJones_(WMF)/Notes/Ukrainian_Morfologik_Analysis
[9] https://phabricator.wikimedia.org/T160106
[10] https://phabricator.wikimedia.org/T156300
[11] https://commons.wikimedia.org/wiki/File:A_Test_Of_Cross-wiki_Search_-_Helping_Users_Discover_Content_On_Wikipedia’s_Sister_Projects.pdf
[12] https://www.wikidata.org/wiki/Wikidata:Project_chat#Federation_in_the_Wikidata_Query_Service
[13] https://www.wikidata.org/wiki/Wikidata:Project_chat#Query_Service:_you_can_now_create_a_template_to_explain_what_your_query_is_doing

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The archive of all past updates can be found on MediaWiki.org:

https://www.mediawiki.org/wiki/Discovery/Status_updates

Interested in getting involved? See tasks marked as "Easy" or "Volunteer needed" in Phabricator.

[1] https://phabricator.wikimedia.org/maniphest/query/qW51XhCCd8.7/#R
[2] https://phabricator.wikimedia.org/maniphest/query/5KEPuEJh9TPS/#R


Yours,
Chris Koerner
Community Liaison - Discovery
Wikimedia Foundation