Hello, This is the Discovery update for last week. Apologies for the delay in getting it out.

== Discussions ==

=== Search === * Created a method for the Kafka consumer to take 'learn to rank' queries from a queue and run them against ElasticSearch to generate relevance labels [0] * Added in the ability to use kafka in our LTRank feature generation queries and pushing them into ElasticSearch for analysis [1] * Added ability to extract TF and IDF based features in the ElasticSearch 'learning to rank' plugin [2] * A/B test still in progress 'explore similar' links, but we're running into a few bugs that will be sorted out next week [3] * Fixed a bug where searching for phrase queries did not highlight page content [4]

=== Analysis === * Fixed a bug with the sister project snippets and eventlogging [5] * Finished up analysis for determining what is a reasonable per-IP ratelimit for maps [6] * Fixed a minor dashboard bug (splines) [7]

[0] https://phabricator.wikimedia.org/T162059 [1] https://phabricator.wikimedia.org/T162072 [2] https://phabricator.wikimedia.org/T167437 [3] https://phabricator.wikimedia.org/T164856 [4] https://phabricator.wikimedia.org/T167798 [5] https://phabricator.wikimedia.org/T168916 [6] https://phabricator.wikimedia.org/T169175 [7] https://phabricator.wikimedia.org/T169125

Yours, Chris Koerner Community Liaison Wikimedia Foundation