@inproceedings{ee6b042079b542be92008cf21e98b9d4,
title = "Arranging the layout of alphanumeric buttons-the role of passwords",
abstract = "A typical but trivial layout of alphanumeric buttons in the touchscreen setting is to arrange the 10 digits and 26 letters in a natural order. This arrangement does not take into account the frequencies of letters and digits when the users touch the buttons to key in their passwords or messages. We examine large scale datasets of over 141 million passwords collected from several leading websites for social networking, Internet forums, gaming, dating, and various other online service providers in China, and find that the distribution of letters in passwords is quite close to that in Chinese language. Based on the letter/digit frequencies, we further propose an alphanumeric button layout scheme with the following advantages: the buttons are clicked as uniformly as possible, so that the lifetime of the touchscreen can be prolonged and finger oil residues may scatter more evenly over the button area of the screen; and in the meantime, the movements of users' fingers are improved to enhance good user experience when inputting messages. The idea behind the layout is potentially applicable to diversified races. Copyright is held by the author/owner(s).",
keywords = "Alphanumeric button, Passwords, Touchscreen",
author = "Xiangxue Li and Yu Yu and Qiang Li and Haifeng Qian and Yuan Zhou and Jian Weng",
year = "2014",
month = nov,
day = "3",
doi = "10.1145/2660267.2662368",
language = "英语",
isbn = "9781450329576",
series = "Proceedings of the ACM Conference on Computer and Communications Security",
publisher = "Association for Computing Machinery",
pages = "1457--1459",
booktitle = "Proceedings of the ACM Conference on Computer and Communications Security",
address = "美国",
note = "21st ACM Conference on Computer and Communications Security, CCS 2014 ; Conference date: 03-11-2014 Through 07-11-2014",
}