From: An intelligent vocabulary size measurement method for second language learner
Group | 200 | 400 | 600 | 800 | 1000 |
Accuracy | 100% | 100% | 99% | 99% | 98% |
Group | 1200 | 1400 | 1600 | 1800 | 2000 |
Accuracy | 99% | 94% | 99% | 96% | 96% |
Group | 2200 | 2400 | 2600 | 2800 | 3000 |
Accuracy | 98% | 99% | 100% | 100% | 100% |
Overall accuracy | 98.47% |