character accuracy

Character accuracy measures how well a system's output matches a target or correct text at the individual character level. It is calculated by comparing each character in the generated text to the corresponding character in the reference text, counting the number of correctly matched characters, and then expressing this as a percentage of the total characters. High character accuracy indicates that the system's output closely resembles the original, making it an important metric for tasks like optical character recognition or transcription accuracy. Essentially, it assesses the precision of each character in the generated text in relation to the correct version.