Features/607 som

[Inzlinger]

Description

Implementation of self organizing maps. Still needs #703 to be fixed so the result is deterministic for all splits.

List any dependencies Issue/s resolved:

#607

Type of change

• New feature (non-breaking change which adds functionality)

Due Diligence

• All split configurations tested
• Multiple dtypes tested in relevant functions
• Documentation updated (if needed)
• Updated changelog.md under the title "Pending Additions"

Does this change modify the behaviour of other functions? If so, which?

no

[mtar]

GPU cluster tests are currently disabled on this Pull Request.

[codecov]

Codecov Report

Merging #760 (69926fb) into master (3db3877) will decrease coverage by 5.16%.
The diff coverage is 6.02%.

@@            Coverage Diff             @@
##           master     #760      +/-   ##
==========================================
- Coverage   95.47%   90.30%   -5.17%     
==========================================
  Files          64       65       +1     
  Lines        9535     9618      +83     
==========================================
- Hits         9104     8686     -418     
- Misses        431      932     +501     

Flag	Coverage Δ
gpu	?
unit	90.30% <6.02%> (-0.74%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
heat/som/som.py	0.00% <0.00%> (ø)
heat/core/_operations.py	95.02% <71.42%> (-0.86%)	⬇️
heat/optim/dp_optimizer.py	24.19% <0.00%> (-71.89%)	⬇️
heat/core/devices.py	86.66% <0.00%> (-11.12%)	⬇️
heat/nn/data_parallel.py	84.13% <0.00%> (-10.35%)	⬇️
heat/cluster/spectral.py	85.71% <0.00%> (-8.58%)	⬇️
heat/core/communication.py	89.90% <0.00%> (-6.86%)	⬇️
heat/core/tests/test_suites/basic_test.py	91.26% <0.00%> (-4.86%)	⬇️
heat/core/linalg/qr.py	97.30% <0.00%> (-2.70%)	⬇️
heat/utils/data/partial_dataset.py	92.30% <0.00%> (-2.06%)	⬇️
... and 7 more

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[ClaudiaComito]

requires #914