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Enhance e-prop plasticity with biologically inspired features #3207

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@JesusEV JesusEV commented May 15, 2024

This PR extends the previous efforts (PR #2867 "Implement e-prop plasticity") in porting the eligibility propagation (e-prop) plasticity mechanism by Bellec et al. (2020) from TensorFlow to NEST by introducing several novel, bio-inspired enhancements to e-prop.

Changes

  • Renamed Files: Files from PR Implement e-prop plasticity #2867 now include the suffix _bsshslm_2020, aligning with NEST's naming convention that reflects the first letters of the authors' last names and the publication year.
  • New Neuron Models:
    • eprop_iaf
    • eprop_iaf_psc_delta
    • eprop_iaf_adapt
    • eprop_readout
  • New Synapse Model: eprop_synapse
  • New Connection Model: eprop_learning_signal_connection
  • Refactored Node: eprop_archiving_node with added support for new models.
  • New Unit Test: test_eprop_plasticity.py
  • New Example Scripts:
    • eprop_supervised_regression_sine-waves.py
    • eprop_supervised_classification_neuromorphic_mnist.py
    • eprop_supervised_classification_evidence-accumulation.py

A manuscript by Korcsak-Gorzo, Stapmanns, and Espinoza Valverde et al. detailing these enhancements is in preparation.

References

Bellec G, Scherr F, Subramoney F, Hajek E, Salaj D, Legenstein R, Maass W (2020). A solution to the learning dilemma for recurrent networks of spiking neurons. Nature Communications, 11:3625. DOI

Korcsak-Gorzo A, Stapmanns J, Espinoza Valverde JA, Dahmen D, van Albada SJ, Plesser HE, Bolten M, Diesmann M. Event-based implementation of eligibility propagation. (in preparation)

Co-authored-by: Agnes Korcsak-Gorzo [email protected]

akorgor and others added 30 commits April 30, 2024 10:23
Co-authored-by: JesusEV <[email protected]>
    * make clear that no validation in first iteration
akorgor and others added 4 commits October 4, 2024 12:08
    * remove `regular_spike_arrival` flag and `P_z_in` since = 1
    * do spike-threshold crossing reset at the beginning of the time step
@akorgor akorgor requested a review from heplesser October 4, 2024 10:12
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@akorgor @JesusEV Could you merge the newest master? That should solve the Pylint errors about "too many positional arguments".

van Albada SJ, Bolten M, Diesmann M. Event-based implementation of
eligibility propagation (in preparation)
.. [3] Korcsak-Gorzo A, Stapmanns J, Espinoza Valverde JA, Plesser HE,
Dahmen D, Bolten M, Van Albada SJ*, Diesmann M*. Event-based
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Suggested change
Dahmen D, Bolten M, Van Albada SJ*, Diesmann M*. Event-based
Dahmen D, Bolten M, Van Albada SJ, Diesmann M. Event-based

.. [3] Korcsak-Gorzo A, Stapmanns J, Espinoza Valverde JA, Dahmen D, van Albada SJ, Bolten M, Diesmann M.
Event-based implementation of eligibility propagation (in preparation)
.. [3] Korcsak-Gorzo A, Stapmanns J, Espinoza Valverde JA, Plesser HE,
Dahmen D, Bolten M, Van Albada SJ*, Diesmann M*. Event-based
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Suggested change
Dahmen D, Bolten M, Van Albada SJ*, Diesmann M*. Event-based
Dahmen D, Bolten M, Van Albada SJ, Diesmann M. Event-based

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dependencies Pull requests that update a dependency file I: User Interface Users may need to change their code due to changes in function calls S: Normal Handle this with default priority T: Enhancement New functionality, model or documentation
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5 participants