Hello,
A few updates from the Discovery department this week.

Programming note: There will be no status update next week due to the holiday. [0]


==Highlights==
* BM25 is now enabled on the ten wikis with largest traffic. This improves numerous relevance issues in search queries. [1]
* The Interactive Team's roadmap was finalized in Nov 2016 for FY 2016/2017. [2]
* You can now search for file properties such as file size and and file type on Commons. See the documentation for more information. [3]

==Discussions==
* The Interactive and Analysis team had a good discussion on KPIs and moving forward with logging what is needed [4]
* Lots of great analysis and discussions about using BM25 on languages with spaces, [5]

=== Search ===
* BM25 is now enabled on the ten wikis with largest traffic. This improves numerous relevance issues in search queries. [6]
* You can now search for file properties such as file size and and file type on Commons. [7]
* Fixed issue where search would behave unexpectedly if the query contained the name of a namespace and a colon. [8] [9]

=== Analysis  ===
* New Analysis: From Zero To Hero 2: Electric Boogaloo - or - how does stripping out question marks improve search [10] [11]


[0] https://en.wikipedia.org/wiki/Thanksgiving
[1] https://en.wikipedia.org/wiki/Okapi_BM25
[2] https://www.mediawiki.org/wiki/File:Interactive_Roadmap_2016-2017.pdf
[3] https://www.mediawiki.org/wiki/Help:CirrusSearch#File_properties_search
[4] https://phabricator.wikimedia.org/T149834#2804436
[5] https://phabricator.wikimedia.org/T147500
[6] https://phabricator.wikimedia.org/T147508
[7] https://phabricator.wikimedia.org/T144447
[8] https://phabricator.wikimedia.org/T148344
[9] https://phabricator.wikimedia.org/T150232
[10] https://phabricator.wikimedia.org/T147216
[11] https://commons.wikimedia.org/wiki/File:Query_Features_and_Search_Performance.pdf




----

The full update, and archive of 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