Feature selection method and device for generating user portrait
The invention discloses a feature selection method and device for generating a user portrait, and relates to the technical field of computers. A specific embodiment of the method comprises the steps of receiving to-be-processed feature data, and generating a candidate feature set; calculating an eva...
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Main Author | |
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Format | Patent |
Language | Chinese English |
Published |
03.12.2021
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a feature selection method and device for generating a user portrait, and relates to the technical field of computers. A specific embodiment of the method comprises the steps of receiving to-be-processed feature data, and generating a candidate feature set; calculating an evaluation value of each feature in the candidate feature set based on a preset evaluation model, and recording the features of which the evaluation values are greater than a first threshold value into a first candidate feature set; calculating a correlation coefficient between every two features in the first candidate feature set based on a preset correlation coefficient model, and recording the features of which the correlation coefficients are greater than a second threshold value into a second candidate feature set; and substituting the first threshold value, the second threshold value, the first candidate feature set and the second candidate feature set into a pre-trained policy network to obtain a policy-screene |
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Bibliography: | Application Number: CN202010604427 |