Dialects, Topic Models, and Border Effects: The Rusyn Case

In this contribution, we present, discuss, and apply a data-driven approach for analyzing varieties of the Slavic minority language Carpathian Rusyn spoken in different countries in the Carpathian region.Using topic modeling, a method originally developed for text mining, we show that the Rusyn varieties are subject to border effects, i.e., vertical convergence and horizontal divergence, due to language contacts with their respective umbrella languages Polish, Slovak and Standard Ukrainian.Additionally, we show that the method is suitable for uncovering fieldworker isoglosses, i.e., different transcription principles in an otherwise homogeneous dataset.