Volume 3 Issue 1 INTERNATIONAL JOURNAL OF HUMANITIES AND June 2016 CULTURAL STUDIES ISSN 2356-5926 North Caucasian languages: comparison of three classification approaches Valery Solovyev Kazan State University, Kazan, Russia
[email protected] Abstract In the paper three approaches to reconstruction of languages evolution trees are compared on the material of North Caucasian languages: the expert one (comparative-historical method), lexicostatistics, application of phylogenetic algorithms to databases. It is shown that degree of coherence of different computer solutions is approximately the same as degree of coherence of expert solutions. A new classification of North Caucasian languages is proposed, as a result of applying the consensus method to different known classifications. Keywords: North Caucasian languages, phylogenetic algorithms, evolution trees, linguistic databases, consensus method. http://www.ijhcs.com/index Page 1309 Volume 3 Issue 1 INTERNATIONAL JOURNAL OF HUMANITIES AND June 2016 CULTURAL STUDIES ISSN 2356-5926 1. Introduction Over the last years comparative linguists have developed language classification methods based on computer-aided calculations of linguistic similarities. Such methods have added substantially to the toolset of comparative linguistics. Methods utilizing computer programs to construct phylogenetic trees are conventionally called “automated”. The most complete overview of the state of affairs in this area is given in Nichols and Warnow (2008). This work is concerned with both the comparison of algorithms for constructing trees and the analysis of attempts to apply them to various language families. In order to determine the possibilities and usefulness of phylogenetic algorithms, it is proposed to test them on data from well-described families with unquestionable structure (benchmark or Gold Standard) and to compare the trees generated by computational algorithms with those obtained in a traditional manner.