タイポグリセミアと絵から成るCAPTCHA：問題の自動作成の試み

抄録

In previous research, a CAPTCHA consisted of one sentence with typoglycemia and multiple pictures was proposed. However, questions presented to research subjects were manually made. Hence, the questions should be created automatically for practical use. Authors have proposed an automatic question making process and developed a software of creating the questions automatically. In our experiment with 50 research subjects, correct answer rate and answer time were the same as the results that the previous study has shown. It means that out process and software have almost reached levels of the results of the previous study.