feedback-alignment

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What did Lillicrap et al. (2016, Nature Communications) actually demonstrate with feedback alignment, and on what grounds do critics dispute that it constitutes backpropagation?

capture promoted 2026-07-06 · feedback-alignment, backpropagation, biological-plausibility, weight-transport-problem, timothy-lillicrap
Feedback alignment shows fixed random feedback weights can train networks to near-backprop accuracy — but whether it "is" backpropagation is disputed

claim budding Tier 1 2026-07-06 · feedback-alignment, biological-plausibility, backpropagation, weight-transport, lillicrap