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| audio_captcha [2010/01/28 11:23] – nishimotz | audio_captcha [Unknown date] (current) – external edit (Unknown date) 127.0.0.1 | ||
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| ====== Audio Captcha ====== | ====== Audio Captcha ====== | ||
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| + | Notice: this is a draft of unpublished working paper by Takuya Nishimoto. | ||
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| + | Part of the work is published in Japanese. | ||
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| ===== References ===== | ===== References ===== | ||
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| Within the CAPTCHA tasks, the difference of recognition performance between human and machine can be used as a criterion of the safeness. | Within the CAPTCHA tasks, the difference of recognition performance between human and machine can be used as a criterion of the safeness. | ||
| + | Viewied from another side, mental workload for human in listening audio CAPTCHA tasks has not been investigated very much. | ||
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| + | Design method of CAPTCHA task in consideration of safety and ease-of-use is described in this paper. | ||
