The invention belongs to the technical field of biological
medicine, and particularly relates to a video content quality analysis and knowledge recommendation method and
system based on a
large model, and the method comprises the steps: carrying out the video obtaining through an input keyword based on a short video platform, and obtaining a video ID, a video content text and video
metadata; based on the video content text, multi-dimensional text
information extraction and problem diagnosis are carried out, and a structured video text is generated; performing multi-dimensional scoring on the structured video text, calculating to obtain a
video quality score, and constructing an initial high-quality video candidate set; based on the initial high-quality video candidate set and the
user input question, calculating a similarity
score of the
user input question and the initial high-quality video candidate set, and constructing a high-quality video candidate set; and in combination with the
video quality score and the similarity score, carrying out weighted calculation on a comprehensive recommendation score of each video in the high-quality video candidate set, and outputting the first three recommended videos and recommendation reasons to realize precise recommendation.