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Boost recent documents in search results

Authored by mmodell on Oct 20 2017, 12:08 PM.

Description

Boost recent documents in search results

Summary:
Use multiple decay functions to boost recently created and
(more importantly) recently modified documents.

This actually works in reverse, so objects older than a certain
offset get a negative boost based on a decay function.

age > 1d, reduce score by 20% each 10 days.
age > 10 days, reduce score by 20% each 90 days
age > 90 days, reduce score by 20% each 180 days

Reviewers: Paladox, demon

Subscribers: greg

Differential Revision: https://phabricator.wikimedia.org/D830

Details

Committed
mmodellOct 20 2017, 12:15 PM
Differential Revision
D830: Boost recent documents in search results
Parents
rPHABd606822dcce0: Fix the shouldHideByDefault hack
Branches
Unknown
Tags
Unknown
Tasks
T180706: Phabricator search hugely degraded in quality
ChangeId
None