Method and device for determining abnormal fluctuation of user operation times

The invention provides a method and a device for determining abnormal fluctuation of user operation times. The method comprises the following steps: 1) acquiring an operation log of a user to be authenticated in a set time period before a current natural day; 2) obtaining a variable coefficient of t...

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Bibliographic Details
Main Authors XU MING, YIN QIAN'AN, LIU SHENG, TAO JINGLONG, WANG QIFAN, YU XIANZHE, LIANG SHUYUN, ZHOU XIAOYONG, MA YING, WEI GUOFU
Format Patent
LanguageChinese
English
Published 10.04.2020
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention provides a method and a device for determining abnormal fluctuation of user operation times. The method comprises the following steps: 1) acquiring an operation log of a user to be authenticated in a set time period before a current natural day; 2) obtaining a variable coefficient of the current natural day according to the average operation times of the user in the set time period and the quotient of the standard deviation of the average operation times; 3) calculating a current variable coefficient fluctuation value corresponding to the current natural day; acquiring a historical variable coefficient fluctuation value of each natural day of the user in a set time period; 4) judging whether the current variable coefficient fluctuation value exceeds the range between an outerlimit value and an inner limit value or not according to the outer limit value and the inner limit value which are preset in the historical variable coefficient fluctuation value range; and if so, marking the operation of th
Bibliography:Application Number: CN201911200304