Terminal type identification method and device
A technology of terminal type and identification method, applied in the field of communication, can solve problems such as data imbalance and misjudgment of user type, and achieve the effect of improving the recognition rate, improving data imbalance and misjudging user type.
Active Publication Date: 2020-07-10
CHINA MOBILE COMM LTD RES INST +1
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[0004] The embodiment of the present invention provides a terminal type identification method and device to solve the problem of data imbalance and misjudgment of user type in the anti-cheating problem
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[0063] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. In the following description, specific details, such as specific configurations and components, are provided only to assist in a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
[0064] It should be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of t...
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The invention provides a terminal type identification method and device, and relates to the technical field of communication. The terminal type identification method comprises the steps of obtaining asecond sample data set of a training set according to a feature model constructed by a first sample data set; wherein the first sample data set comprises an original sample data set and a weight value obtained according to a non-missing rate of the original sample data set; constructing a deep neural network model of a matching type according to the second sample data set; and identifying the terminal type according to the deep neural network model of the matching type. A first sample data set comprises a weight value. According to the constructed feature model, the second sample data set ofthe training set is acquired, the deep neural network model of the matching type is constructed according to the second sample data set, the terminal type is identified according to the deep neural network model of the matching type, the problems of data imbalance and misjudgment of the user type can be improved, and the identification rate of abnormal data is improved.
Description
technical field [0001] The present invention relates to the field of communication technology, in particular to a terminal type identification method and device. Background technique [0002] At present, online transactions are convenient for people's lives, but they also bring fraud risks. In payment scenarios, due to various unsafe operations such as Trojan phishing or Internet data leakage, the held account information is stolen. After obtaining the account secret information, fraudsters will try to log in without authorization to access the user's payment background page, and then initiate card theft transactions, such as purchasing virtual goods, resulting in the loss of funds in the user's account. Usually, the industry uses machine learning methods to identify such abnormal users, but the proportion of such fraudulent operations is not high in the whole, and the data is imbalanced. Machine learning or deep neural networks are directly used to identify such abnormal us...
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IPC IPC(8): G06N3/04G06N3/08
CPCG06N3/08G06N3/045
Inventor 聂文静
Owner CHINA MOBILE COMM LTD RES INST