equinor / equinor/ert

Implement localization/regularization that is built-in to the `fit` procedure of ensemble based assimilation

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need-design needs-discussion
Dominant language
Python
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Forks
141
Avg merge
2d 4h
Merged PRs (30d)
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Description

Localization is a type of (usually informed, on position in time and space) regularization.
It is well known that regularization works best when directly built-in to the objective function of the fit, both when H is known and must be learnt.
This is in contrast to adaptive localization and distance based localization.
Likely, a better approach is to

  • #5633
  • #5634

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Research direction

The issue names no files, tests, or entry points. Start by reviewing the fit procedure and the linked issues #5633 and #5634 to establish the intended localization or regularization approach. The issue does not define acceptance criteria, so completion would require a decided design and explicit tests or behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
data
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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