[SuoDuanDao]

not a lawyer, but here's my naive interpretation based on living in a society that uses it.

'copyright' seems to refer to a specific string of symbols. literary or musical styles can't be copyrighted, but individual sequences of letters or notes can. Basically, if a derivative work copypasted without adding anything, it's considered plagiarism and/or violation of copyright.

Weights in a model would similarly be a long string of symbols that someone went to considerable trouble to collate and therefore fall under copyright.