Fractional order time-delay multivariable discrete grey model for short-term online public opinion prediction

作者：

Highlights：

• The multivariable grey model predicts short-term online public opinion is proposed.

• The parameter estimation and time response formula are expressed as discrete form.

• The time-delay parameters are introduced to model considering the time-lag effect.

• The fractional-order operator is introduced to reduce the influence of randomness.

摘要

•The multivariable grey model predicts short-term online public opinion is proposed.•The parameter estimation and time response formula are expressed as discrete form.•The time-delay parameters are introduced to model considering the time-lag effect.•The fractional-order operator is introduced to reduce the influence of randomness.

论文关键词：Online public opinion,Prediction,Fractional order,Multivariable discrete grey model,Time-delay

论文评审过程：Received 22 May 2021, Revised 1 September 2021, Accepted 17 February 2022, Available online 22 February 2022, Version of Record 26 March 2022.

论文官网地址：https://doi.org/10.1016/j.eswa.2022.116691