Minsky and Papert publish Perceptrons

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Published Perceptrons — proved that a single-layer perceptron cannot solve linearly inseparable problems such as XOR

Why it matters

Pinned down the limits mathematically, triggering a slump in neural network research that lasted 10 years or more

Source — Primary sources first; secondary reports are labelled “Press”

Officialmitpress.mit.eduhttps://mitpress.mit.edu/9780262630221/perceptrons/

Added in Week 35, 2026 · See that week

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Werbos's Harvard PhD thesis describes backpropagation for multilayer networksPressThe PerceptronPressFukushima publishes the NeocognitronPaperNeural networks and physical systems with emergent collective computational abilitiesPaper