The invention discloses a
digital content popularity modeling method on a multi-segment Sigmoid chain based on security
risk adjustment, which identifies a key turning point by introducing a
moving average difference method (MAD), and sets a threshold value based on a mean value and a standard deviation or a percentile to effectively screen out a real
market change signal. And carrying out quantitative modeling by using a segmented
Sigmoid function, respectively carrying out fitting on each screened interval, and optimizing parameters of each segment of
Sigmoid function by using a trusted region reflection (TRR)
algorithm. And finally, carrying out weighted summation on each section of
Sigmoid function, so as to obtain a popularity quantification result of each color. In addition, a systematic security
event risk analysis module is introduced for the first time to dynamically adjust an original modeling result. Therefore, the method has remarkable innovation and optimization in the aspects of data sources,
processing methods, dynamic change capture and quantitative modeling, the defects in the prior art can be effectively overcome, and a comprehensive, accurate and dynamic popularity quantitative tool is provided.