% pubman genre = article
@article{item_3281792,
title = {{The complexity and history of verb-stem ablauting patterns in Siyuewu Khroskyabs}},
author = {Lai, Yunfan},
language = {eng},
issn = {0165-4004},
doi = {10.1515/folia-2020-2071},
publisher = {Mouton.},
address = {The Hague},
year = {2021},
abstract = {{This paper describes the ablauting patterns in Siyuewu Khroskyabs, an understudied Gyalrongic language. Ablaut is only found in verbs containing closed syllables, and ablaut patterns in Siyuewu preserve Proto-Khroskyabs patterns relatively well. After providing a synchronic description of verb-stem functions and ablauting patterns, implicative entropy is used to model Siyuewu{\textquoteright}s ablauting status. Entropy measurements reveal Siyuewu to have relatively low ablaut predictability, which may be suggestive of a historically conservative ablauting system. On the basis of this quantitative analysis, the current paper proposes an internal reconstruction of ablauting patterns, and postulates a series of velarised vowels for Proto-Siyuewu. Analogical changes are identified through comparison with other Gyalrongic languages. The reconstructed verb forms and patterns are then compared with neighbouring Gyalrongic languages and the directionality of analogy is discussed.}},
contents = {1 Introduction 1.1 Presentation of the data 1.2 Phonological sketch 2 Overview of stem alternation in Siyuewu Khroskyabs 2.1 Tonal alternation 2.2 Coda excrescence 2.3 Aspiration alternation 2.4 Suppletion 2.5 Ablaut 3 Concise description of stem functions 3.1 Stem 1: non-past and irrealis 3.2 Stem 2: past and progressive 3.3 Stem 3: irrealis 4 Ablauting patterns 4.1 The {\ae}C : iC pattern 4.2 The {\textscripta}C : iC pattern 4.3 The {\ae}C : {\textschwa}C pattern 4.4 The oC : {\textschwa}C pattern 4.5 The {\ae}C : uC pattern 4.6 The oC : uC pattern 4.7 The {\ae}{\textinvscr} : o{\textinvscr} pattern 4.8 Non-ablauting verbs with closed syllables 4.8.1 Non-ablauting -{\ae}C verbs 4.8.2 Non-ablauting -{\textscripta}C verbs 4.8.3 Non-ablauting -oC verbs 4.9 Summary 5 Predictability of ablauting status 5.1 Background and method 5.1.1 Conditional entropy 5.1.2 PCFP and implicative entropy 5.1.3 Bootstrap analysis 5.2 Implicative entropies in the Siyuewu ablauting system 5.2.1 Data preparation and Python scripts 5.2.2 Formulae 5.2.3.2 Results 5.2.4 Stem 2 $\Rightarrow$ Stem 1 5.2.5 Bootstrapping for Stem 1 $\Leftrightarrow$ Stem 2 5.2.6 Implicative entropies by individual vowels 5.2.7 Bootstrapping for individual vowels 5.3 Summary 6 Internal reconstruction of the ablauting patterns 6.1 Reconstruction of ablauting patterns 6.2 Evidence for the sound changes 6.2.1 Evidence for velarised vowels 6.2.2 Comparing internal reconstructions with Gyalrongic cognates 6.3 Directionality of analogy 6.4 Implicative entropy of the Proto-Siyuewu ablauting system 7 Comparing ablauting patterns 7.1 {\textquoteright}Brongrdzong Khroskyabs 7.2 Zbu 8 Conclusion},
journal = {{Folia Linguistica}},
volume = {55},
number = {1},
pages = {75--126},
}