Gendai budō Gendai budō , literal meaning "modern budo", or , literally meaning "new budo" are both terms referring to modern Japanese martial arts, which were established after the Meiji Restoration (1866–1869). Koryū are the opposite of these terms referring to ancient martial arts established before the Meiji Restoration. Any martial art created after the Meiji Restoration of 1868 is Gendai Budo. Koryu Budo are schools of budo that predate 1868. Some examples of Gendai budō are aikido, judo, karate and shorinji kempo. The Japanese art of sumo is often defined as a gendai budō. This definition is incorrect as sumo is
Document-term matrix the corpus. Specifically, latent semantic analysis and data clustering can be used, and more recently probabilistic latent semantic analysis and non-negative matrix factorization have been found to perform well for this task. Document-term matrix A document-term matrix or term-document matrix is a mathematical matrix that describes the frequency of terms that occur in a collection of documents. In a document-term matrix, rows correspond to documents in the collection and columns correspond to terms. There are various schemes for determining the value that each entry in the matrix should take. One such scheme is tf-idf. They are useful in the field