error-correction
2 free lessons tagged error-correction across Computer Science, Science. Each one is a short sequence of focused steps with narration and a five-question quiz at the end — take them in any order, no signup required.
Channel Capacity and Error-Correcting Codes
Shannon proved that a noisy channel still has a rate at which errors vanish. This lesson works a Hamming code by hand, follows Reed-Solomon into CDs, QR codes and deep space, reaches the capacity-approaching codes inside 5G, and ends on erasure coding versus replication in distributed storage.
Errors, syndromes, and the surface code
Why classical error correction does not directly transfer to qubits, how stabilizer codes and syndrome measurement work around the no-cloning constraint, the surface code as the leading approach, and the math of physical-to-logical qubit overhead.