That doesn't make it a derivative work. If I "process data" by doing a word count of a book, and then I publish the number of words in that book (not the words

That doesn't make it a derivative work. If I "process data" by doing a word count of a book, and then I publish the number of words in that book (not the words themself! Just a word count!) I haven't created a derivative work. Processing data isn't automatically infringement.