Beijing Didi Infinity Technology and Development Co., Ltd.

Didi Research America, LLC

Fangfang Zhang

Zhiwei Qin

Tao Huang

Yinhong Chang

Shuaiji Li

A computer-implemented method for domain analysis comprises: obtaining, by a computing device, a domain; and inputting, by the computing device, the obtained domain to a trained detection model to determine if the obtained domain was generated by one or more domain generation algorithms. The detection model comprises a neural network model, a n-gram-based machine learning model, and an ensemble layer. Inputting the obtained domain to the detection model comprises inputting the obtained domain to each of the neural network model and the n-gram-based machine learning model. The neural network model and the n-gram-based machine learning model both output to the ensemble layer. The ensemble layer outputs a probability that the obtained domain was generated by the domain generation algorithms.

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Cupertino, CA, United States of America

Fangfang Zhang