← Search

Colin Bredenberg

6 accepted papers

2024

Sufficient conditions for offline reactivation in recurrent neural networks

ICLR 2024poster

During periods of quiescence, such as sleep, neural activity in many brain circuits resembles that observed during periods of task engagement. However, the precise conditions under which task-optimized networks can autonomously reactivate the same network states responsible for online behavior is po…

2023

Flexible Phase Dynamics for Bio-Plausible Contrastive Learning

ICML 2023poster

Many learning algorithms used as normative models in neuroscience or as candidate approaches for learning on neuromorphic chips learn by contrasting one set of network states with another. These Contrastive Learning (CL) algorithms are traditionally implemented with rigid, temporally non-local, and…

2023

Formalizing locality for normative synaptic plasticity models

NeurIPS 2023poster

In recent years, many researchers have proposed new models for synaptic plasticity in the brain based on principles of machine learning. The central motivation has been the development of learning algorithms that are able to learn difficult tasks while qualifying as "biologically plausible". However…

Cited by 7SourcePDFScholar
2021

Impression learning: Online representation learning with synaptic plasticity

NeurIPS 2021poster

Understanding how the brain constructs statistical models of the sensory world remains a longstanding challenge for computational neuroscience. Here, we derive an unsupervised local synaptic plasticity rule that trains neural circuits to infer latent structure from sensory stimuli via a novel loss f…

2020

Learning efficient task-dependent representations with synaptic plasticity

NeurIPS 2020poster

Neural populations encode the sensory world imperfectly: their capacity is limited by the number of neurons, availability of metabolic and other biophysical resources, and intrinsic noise. The brain is presumably shaped by these limitations, improving efficiency by discarding some aspects of incomin…