Barlow Twins

Learn about redundancy reduction and a widely used redundancy reduction algorithm, Barlow Twins.

Redundancy reduction

Large neural networks suffer from the problem of redundant representations. Some of the final representations of the input are trivial constants. Such redundant representations are often detrimental to the model's performance as they hinder the neural network from extracting relevant information from the input.

From a biological perspective, brain neurons communicate with each other by sending electrical signals in the form of spikes. In his efficient coding hypothesis, Horace Barlow (December 8, 1921–July 5, 2020), a British vision scientist, hypothesized that sensory information present in spikes in the sensory system is efficiently represented in the form of neural code that minimizes the number of spikes needed to transmit a given signal.

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