Amazon Technologies, Inc.

Asaph Engel

Yan Zhang

Sarthak Ghosh

Radu Drossu

Vaibhav Gorde

Anomalous interactions with a website or other system may be detected based on the types of characteristics associated with previous anomalous interactions, independent of the values associated with those characteristics. Historical data is used to determine characteristics of interactions, each characteristic having a type and a value. For historical interactions in which a set of characteristic values are associated with a potentially anomalous interaction, the characteristic types are analyzed in subsequent interactions. If values for those characteristic types occur at a frequency greater than a threshold frequency for a set of subsequent interactions, this may indicate that the interactions are anomalous. Use of the characteristic types for this purpose, rather than historical characteristic values, enables anomalous interactions to be detected independent of the characteristic values associated with the interactions.

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San Diego, CA, United States of America

Asaph Engel