Pattern completion — content-addressable memory

— click a thumbnail to load it, click the big grid to flip pixels

best match–

pixel accuracy–

–

Four ±1 patterns are stored. Load one into the query, then corrupt it (flip pixels by clicking, or hit the button). Press retrieve and one modern-Hopfield step — x_next = Σ_i softmax(β⟨ξ_i, x⟩)_i · ξ_i — snaps the query back to the stored pattern it most resembles. With well-separated patterns the recovery is essentially one step: this is exactly content-addressable memory.