Detecting Structured Language Alternations in Historical Documents by
  Combining Language Identification with Fourier Analysis
Hale Sirin Sabrina Li Tom Lippincott
In this study, we present a generalizable workflow to identify documents in a
historic language with a nonstandard language and script combination,
Armeno-Turkish. We introduce the task of detecting distinct patterns of
multilinguality based on the frequency of structured language alternations
within a document.