Unsupervised Morphological Analysis for Minority Languages ― Improve extracted words by word replacement ―

Abstract

The purpose of this study is to assist in the conservation activity minority languages. The activity includes the extraction of words from the collected texts. This study aims to support this task in particular. Unsupervised morphological analysis is used for this purpose, but the conventional method, NPYLM, does not perform well with the small amount of collected texts. In this study, we proposed a method to replace some of the word candidates obtained by NPYLM with single letters and apply NPYLM again. We report its effectiveness.