Thanks for the link. Mentioned elsewhere that Wolfram's software was used live in filming to analyze the semagraphs. But, I missed the Wolfram blog post. Am going to see the movie again particularly for that sequence (plus the Jóhann Jóhannsson soundtrack floors me).
A very good intro is also http://blog.stephenwolfram.com/2016/11/quick-how-might-the-a... by Stephen Wolfram who helped with some science parts on the movie.
My short review: https://letterboxd.com/rurban/film/arrival-2016/1/