Hey,

This is the 20th weekly update from revision scoring team that we have sent to this mailing list.

New development:

- We implemented the basic functionality for handling bag of words and other types of abstract feature vectors in `revscoring`. [1] This required some changes to some dependencies as well. [2]

- We extended the user-group related features to include more of the dominant groups outside of English Wikipedia [3] and incremented the models that changed substantially [4]

Documentation:

- We extended the documentation at mw:Extension:ORES to make it easier for new developers to work with us. [5]

Resourcing:

- We discussed the teams resourcing needs (hardware, engineering, and community liaison support) with Wes Moran. [6]

Maintenance and robustness:

- We addressed a variety of issues around caching and how the ORES extension loads new data

- ORES now returns headers that will disable secondary caching. [7]

- Our maintenance scripts will circumvent caches that do not listen to no-cache headers. [8, 9]

- We fixed an issue where the ORES review tool would duplicate items in Special:RecentChanges. [10]

- We standardized the extraction pattern for the enwiktionary model so that it looks similar to other models. [11]

1. https://phabricator.wikimedia.org/T132580 -- Implement abstraction for Sparse Feature Vectors 2. https://phabricator.wikimedia.org/T144430 -- Update yamlconf so that import_path can handle deep attributes 3. https://phabricator.wikimedia.org/T143909 -- Extend user group features 4. https://phabricator.wikimedia.org/T144855 -- Increment ruwiki editquality models 5. https://phabricator.wikimedia.org/T144676 -- Improve technical documentation in Extension:ORES in mediawiki.ore 6. https://phabricator.wikimedia.org/T144517 -- ORES and Product: resourcing discussion 7. https://phabricator.wikimedia.org/T144193 -- Set max-age header to 0 seconds for ORES to quiet secondary caches 8. https://phabricator.wikimedia.org/T144196 -- Get model version needs to invalidate cache 9. https://phabricator.wikimedia.org/T144195 -- Check model version replaces every time it runs. 10. https://phabricator.wikimedia.org/T144233 -- Redundant results in ORES review tool 11. https://phabricator.wikimedia.org/T144605 -- Fix makefile entry for enwiktionary.rev_reverted.20k_2016.tsv

Sincerely, Aaron from the Revision Scoring team