libexttextcat-2.0-0 3.4.4-1ubuntu3 (amd64 binary) in ubuntu xenial

 Libextttextcat is a library with functions that implement the classification
 technic described in Cavnar & Trenkle, "N-Gram-Based Text Categorization".
 It was primarily developed for language guessing, a task on which it is known
 to perform with near-perfect accuracy.