A realisational and implemented description of Asama's verb paradigms

Résumé En

Formal and computational linguistics can enhance descriptive linguistics of endangered languages by providing them with precise models and quantitative perspectives. We exemplify the benefits of such an approach with the case of Asama’s verb inflectional morphology. We show that a Word-and-Paradigm framework and an implementation with finite-state tools can provide interesting insights and allow for both the identification and the quantification of the sources of uncertainty in the implicative relations within Asama’s verb paradigms. We describe Asama’s verb morphology by considering whole forms rather than exponents only, and we factor its alternation patterns in two types: segmental alternations and suprasegmental alternations. Measures of Shannon’s conditional entropy are then used to estimate the respective contributions of these factors to the complexity of the system. We also show how the principal parts of the inflectional system can be determined with conditional entropy measures of n-ary implicative relations.