Document-term matrices are used in natural language processing programs. They represent natural language documents as mathematical objects (a matrix) and make it possible to process them as a whole.
Latent semantic analysis Bag of words model Tf–idf Probabilistic latent semantic analysis Syntactic category Non-negative matrix factorization Vector space model Multivariate analysis Trie Collocation Cluster analysis Polysemy Spectral theorem Terminology Natural language processing Document Synonym Matrix (mathematics) Indo-European languages