Create backend for speedily computing various ad-hoc user satisfaction KPIs
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Description

We need a backend (preferably compiled) for computing:

  1. The LD50 (the point at which 50% of users have left)
  2. The arbitrary dwell threshold;
  3. The dwell time within individual user sessions
  4. The zero result clickthrough rate
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Change 240003 had a related patch set uploaded (by OliverKeyes):
Begin ortiz and dwell-time computations

https://gerrit.wikimedia.org/r/240003

Change 240003 merged by Bearloga:
Begin ortiz and dwell-time computations

https://gerrit.wikimedia.org/r/240003

Change 240377 had a related patch set uploaded (by OliverKeyes):
Switch numeric check to its own function.

https://gerrit.wikimedia.org/r/240377

@mpopov that isn't a blocker; we need the new fields for computing the modelled system but to my knowledge we don't need them for LD50 or arbitrary dwell-time threshold.

Change 240377 merged by Bearloga:
Switch numeric check to its own function.

https://gerrit.wikimedia.org/r/240377

Change 240623 had a related patch set uploaded (by Bearloga):
Calculate 'lethal dose' from check-in data We this script produces a dataset containing summary measures from daily survival analysis. It generates a series of 'lethal dose' measures ('LDN') which are time points at which we have lost N% of the users. For

https://gerrit.wikimedia.org/r/240623

Change 240623 merged by OliverKeyes:
Calculate 'lethal dose' from check-in data We this script produces a dataset containing summary measures from daily survival analysis. It generates a series of 'lethal dose' measures ('LDN') which are time points at which we have lost N% of the users. For

https://gerrit.wikimedia.org/r/240623

Deskana closed this task as Resolved.Nov 20 2015, 5:23 AM
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