Try reading up on latent semantic analysis. It also uses vector calculus, but works a bit different IIRC. It can be used to identify words that are used in the

Try reading up on latent semantic analysis. It also uses vector calculus, but works a bit different IIRC. It can be used to identify words that are used in the same context and therefore should be the same. I'm not sure if it is directly applicable for recipes because of the concise language, but you might find interesting related articles.