identification vs mixing

identification

noun
  • The act of identifying (i.e., which one, which thing). 

  • The combination of identifying (which one, which thing) and validating the identity (proving or confirming it); identifying and authenticating viewed as a unitary concept in cognition. 

  • A feeling of support, sympathy, understanding, or belonging towards somebody or something. 

  • A particular instance of identifying something. 

  • A document or documents serving as evidence of a person's identity. 

  • The state of being identified. 

mixing

noun
  • The act, or the result of making a mixture. 

adj
  • Of a stochastic process, to be asymptotically independent (in a precise mathematical sense). 

How often have the words identification and mixing occurred in a corpus of books? (source: Google Ngram Viewer )