How to identify the correspondence of the topic of the text to the text itself?

Question

Text analysis

Good day! Let's start with a generalized problem. There is, roughly speaking, the topic of the abstract, and there is the abstract itself, you need to determine how much the text reveals this topic and express it to some extent.
Is there any sense in this approach: comparing the "semantics" of the topic and the semantics of the paragraphs of the text, and then calculating some average of the paragraphs, which will be the measure of compliance?
What approach would you suggest to solve this problem?
PS if possible in more detail)

Answer 1

It is necessary to calculate some standard of the topic - this topic should include subtopics 1, 2, 3 and, on their basis, carry out a semantic analysis of paragraphs. Usually these topics are highlighted in the table of contents. That is, I checked the content - I checked the entire abstract.