so you have to come up with some way of taking that document and meaningfully encoding it into a fixed size vector right so the classic way of doing this is the bag of words right where you have one dimension per unique word in your vocabulary so English has I don't know about a hundred thousand words in the vocabulary right and so you have a hundred thousand dimensional vector most of them are zero because most words are not present in your document and the ones that are have some value that's maybe account or