The invention discloses a Chinese culture element overseas propagation multi-
modal prediction model construction method, which comprises the steps of S1, obtaining a short video and short video comments, performing data cleaning on the short video comments, performing aspect-level
sentiment analysis on the comments, and obtaining main evaluation dimensions, dimension weights and sentiment scores; s2, dividing the short video into multiple frames, extracting corresponding Chinese culture elements and explanations thereof in each frame of picture, synthesizing the culture elements of each picture and extracting second-level Chinese culture elements; s3, linking the video framing image and the evaluation dimensions, mapping the framing image and the evaluation dimensions to the same
semantic space, and obtaining dimension scores of the video framing image on each evaluation dimension; s4, acquiring a
propagation effect score of each Chinese culture element to obtain an indirect
score of the
propagation effect of the Chinese culture element; s5, obtaining a direct
score of the Chinese culture element
propagation effect; s6, defining a
score fusion function, fusing the direct score and the indirect score of the Chinese culture element propagation effect to obtain a final score of the Chinese culture element propagation effect, endowing a final score of a second-level Chinese culture element propagation effect, and constructing a
data set; and S7, training the base multi-
modal large model to obtain a Chinese culture element overseas propagation multi-
modal prediction model.