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_Performanc...

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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