Thesis (Ph.D.) -- University of Western Sydney, 2005. / "A thesis submitted to the School of Humanities and Languages of the University of Western Sydney, College of Arts, School of Humanities and Languages, in fulfillment for the requirements of the degree of Doctor of Philosophy, December 2005." Includes bibliographical references and appendices.

Thesis (Ph. D.)--University of California, Santa Cruz, 1994. / Typescript. Includes bibliographical references (leaves 263-288).

xii, 75 p. / Wintu is a moribund Penutian language once spoken in the Sacramento River Valley in Northern California. Presently unexplored is Wintu expression of movement and location. Several avenues exist for nouns and verbs. Nouns receive optional locative suffixation, or location may be implied in the absence of a noun. Verbs may receive locative prefixes and/or an implied trajectory may be inherent to a verb's semantics; inherent location may also be expressed by nouns. In more complicated cases, nouns appear to receive established verbal morphology, or the nominal locative suffix or verbal locative prefixes occur in unusual contexts. In order to reach primary conclusions, it was necessary to address other difficulties, including nominal aspect, unclear word-class boundaries, inconsistent glossing, lack of native speakers and an overall paucity of information. Primary data consist of texts recorded and transcribed in the 1970s and two English/Wintu dictionaries; analysis was based on forms from these documents. / Committee in charge: Prof. Scott DeLancey, Chairperson; Prof. Spike Gildea, Member

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One of the most important questions in Australian comparative linguistics over the last 40 years is the validity of a Pama-Nyungan node in the Australian family tree. Much of the comparative research done on Australian languages has supported the notion of a Pama-Nyungan family, and its validity is now well-established. However. much work remains to be done, both in establishing the relationships among the Pama-Nyungan languages and in reconstructing proto-Pama-Nyungan and determining the details of its development in the various branches of the family tree. This dissertation is a contribution towards the latter effort. The primary purpose of the present study is to determine the development of the three initial velars, *k. *ng and *w. in 25 Pama-Nyungan languages through 1561 cognate sets. The cognate sets are also an important resource for the study of other aspects of phonological change in Pama-Nyungan languages. The data provide evidence for the weakening of medial consonants, the assimilation of initial velar glides and nasals to the following vowel, prenasalization of medial stops, the development of triconsonantal clusters, and the presence of both a laminal lateral and a retroflex series of consonants in proto-Pama-Nyungan. In addition, statistical evidence is presented which supports the hypothesis that assimilation of the second to the first vowel is an important process in the history of many Pama-Nyungan languages. This dissertation also discusses important issues regarding the Neogrammarian hypothesis and the comparative method. In particular, the data presented here support the idea that not all sound changes apply in a lexically abrupt, regular manner. Many of the sound changes seen in the data appear to affect only a portion of the eligible forms, and thus provide evidence for the theory of lexical diffusion. Furthermore, most of the changes are found not just in individual languages, but in a number of the languages under study. The data therefore support the notion of pandemic irregularity. / Graduate

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Paul Grice's conversational implicature is a widely studied and commonly accepted theory in the field of linguistics, and Stephen Toulmin's model of argument is perhaps even more widely studied and accepted in the field of argument. I was struck by the great similarities between the two theories, particularly the leap of logic both are dependent upon, and surprised by the fact that it didn't seem that anyone had explored the similarities. In this thesis, I explore the similarities of the processes, of Grices's implicature and Toulmin's model of argument, and how looking at the two together increases the understanding of both.

Evolutionary processes can be found in almost any historical, i.e. evolving, system that erroneously copies from the past. Well studied examples do not only originate in evolutionary biology but also in historical linguistics. Yet an approach that would bind together studies of such evolving systems is still elusive. This thesis is an attempt to narrowing down this gap to some extend. An evolving system can be described using characters that identify their changing features. While the problem of a proper choice of characters is beyond the scope of this thesis and remains in the hands of experts we concern ourselves with some theoretical as well data driven approaches. Having a well chosen set of characters describing a system of different entities such as homologous genes, i.e. genes of same origin in different species, we can build a phylogenetic tree. Consider the special case of gene clusters containing paralogous genes, i.e. genes of same origin within a species usually located closely, such as the well known HOX cluster. These are formed by step- wise duplication of its members, often involving unequal crossing over forming hybrid genes. Gene conversion and possibly other mechanisms of concerted evolution further obfuscate phylogenetic relationships. Hence, it is very difficult or even impossible to disentangle the detailed history of gene duplications in gene clusters. Expanding gene clusters that use unequal crossing over as proposed by Walter Gehring leads to distinctive patterns of genetic distances. We show that this special class of distances helps in extracting phylogenetic information from the data still. Disregarding genome rearrangements, we find that the shortest Hamiltonian path then coincides with the ordering of paralogous genes in a cluster. This observation can be used to detect ancient genomic rearrangements of gene clus- ters and to distinguish gene clusters whose evolution was dominated by unequal crossing over within genes from those that expanded through other mechanisms. While the evolution of DNA or protein sequences is well studied and can be formally described, we find that this does not hold for other systems such as language evolution. This is due to a lack of detectable mechanisms that drive the evolutionary processes in other fields. Hence, it is hard to quantify distances between entities, e.g. languages, and therefore the characters describing them. Starting out with distortions of distances, we first see that poor choices of the distance measure can lead to incorrect phylogenies. Given that phylogenetic inference requires additive metrics we can infer the correct phylogeny from a distance matrix D if there is a monotonic, subadditive function ζ such that ζ^−1(D) is additive. We compute the metric-preserving transformation ζ as the solution of an optimization problem. This result shows that the problem of phylogeny reconstruction is well defined even if a detailed mechanistic model of the evolutionary process is missing. Yet, this does not hinder studies of language evolution using automated tools. As the amount of available and large digital corpora increased so did the possibilities to study them automatically. The obvious parallels between historical linguistics and phylogenetics lead to many studies adapting bioinformatics tools to fit linguistics means. Here, we use jAlign to calculate bigram alignments, i.e. an alignment algorithm that operates with regard to adjacency of letters. Its performance is tested in different cognate recognition tasks. Using pairwise alignments one major obstacle is the systematic errors they make such as underestimation of gaps and their misplacement. Applying multiple sequence alignments instead of a pairwise algorithm implicitly includes more evolutionary information and thus can overcome the problem of correct gap placement. They can be seen as a generalization of the string-to-string edit problem to more than two strings. With the steady increase in computational power, exact, dynamic programming solutions have become feasible in practice also for 3- and 4-way alignments. For the pairwise (2-way) case, there is a clear distinction between local and global alignments. As more sequences are consid- ered, this distinction, which can in fact be made independently for both ends of each sequence, gives rise to a rich set of partially local alignment problems. So far these have remained largely unexplored. Thus, a general formal frame- work that gives raise to a classification of partially local alignment problems is introduced. It leads to a generic scheme that guides the principled design of exact dynamic programming solutions for particular partially local alignment problems.

This PhD thesis examines a phenomenon known as Monosyllabic Circumflexion (MC, hereafter) from a historical linguistics / phonological point of view. MC denotes a Lithuanian or Balto-Slavic phenomenon according to which long vowels and diphthongs in monosyllabic words exhibit a circumflex tone instead of the expected acute tone.  It is observed in the following four categories: I. 3rd person future forms of monosyllabic stems (e.g., šõks ― šókti `to jump;' vy͂s ― výti `to drive') II. reflexes of PIE root nouns (e.g., Latv. gùovs `cow;' Lith. šuõ `dog') III. prepositions/adverbs (e.g., nuõ `from' ~  nùotaka `bride;' vė͂l `again' ~ Latv. vêl `still, yet,' tė͂ (permissive particle) < *teh1) IV. pronominal forms (e.g., tuõ ~ gerúoju `the good (m.~sg.~instr.),' tie͂ ~ tíeji `id. (pl.nom)'). The unexpected circumflex tone in these categories is problematic and important for the solution of a Balto-Slavic accentological question on the etymological background of acute and non-acute tones. The aim of this thesis is to partially contribute to the solution of this problem by establishing the existence of MC and its relative chronology. The first category, the 3rd person future forms, provides a substantial number of examples and counterexamples. The examination of them has revealed the fact that the counterexamples constitute a morpho-semantic group of verbs whose future stems underwent considerable morphological changes in the prehistory, hence not exhibiting MC. This shows that the regular tonal reflex of the 3rd person future forms of monosyllabic acute stem must be circumflex, allowing for the establishment of MC as a regular phonological process, although this category does not provide much information on the relative chronology of MC. The second category, the reflexes of Proto-Indo-European root nouns, gives an important clue as to where MC is located in the relative chronology of Balto-Slavic sound changes. Next, there is a discussion of whether the results of the examinations of the first two categories can be maintained for the data of the third and fourth categories, which show an irregular distribution of the acute and circumflex tones in monosyllabic forms. It is shown that various morphological factors, such as homonymic clashes within the paradigms for pronouns, can explain why some monosyllabic forms have acute tone. Also, the linguistic feature of West Aukštaitian dialects of Lithuanian that tend to preserve the results of MC is revealed. These dialects are known to have played an important role in the formation of standard Lithuanian. In this way, the monosyllabic forms with unexpected circumflex tone in Lithuanian are explained as a combination of MC in the Proto-Balto-Slavic time and the dialectal tendency of West Aukštaitian dialects of Lithuanian.

University of Macau / Faculty of Social Sciences and Humanities / Department of Portuguese