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Alexei Koulakov

3 accepted papers

2023

Stochastic Gradient Descent-Induced Drift of Representation in a Two-Layer Neural Network

ICML 2023poster

Representational drift refers to over-time changes in neural activation accompanied by a stable task performance. Despite being observed in the brain and in artificial networks, the mechanisms of drift and its implications are not fully understood. Motivated by recent experimental findings of stimul…

Cited by 6SourcePDFScholar
2020

R-learning in actor-critic model offers a biologically relevant mechanism for sequential decision-making

NeurIPS 2020poster

In real-world settings, we repeatedly decide whether to pursue better conditions or to keep things unchanged. Examples include time investment, employment, entertainment preferences etc. How do we make such decisions? To address this question, the field of behavioral ecology has developed foraging p…

Cited by 15SourcePDFScholar
2019

DeepNose: Using artificial neural networks to represent the space of odorants

ICML 2019oral

The olfactory system employs an ensemble of odorant receptors (ORs) to sense odorants and to derive olfactory percepts. We trained artificial neural networks to represent the chemical space of odorants and used this representation to predict human olfactory percepts. We hypothesized that ORs may be…

Cited by 25SourcePDFScholar