Tree Adjoining Grammar at the Interfaces

This thesis constitutes an exploration of the applications of tree adjoining grammar (TAG) to natural language syntax. Perhaps more than any of its major competitors such as HPSG and LFG, however, TAG has never strayed too far from the guiding principles of generative syntax. Indeed, following the pioneering work of Frank (2004), TAG has been successfully incorporated into Chomsky’s (1995) Minimalist Program (MP). In large part, however, Frank (2004) leaves unexplored the issue of how TAG applies at the PF and LF interfaces. Given the fundamental importance of interfaces within the MP, no minimalist syntactic theory is complete without at least some notion of the means by which syntactic structure relates to pronunciation and interpretation. In this thesis we attempt to provide insight on this very issue: we address how TAG interfaces with the articulatory and interpretive components of the language faculty, and what insights it provides to minimalist conceptions of these interfaces. Ultimately, our aim is both to reaffirm the viability of TAG as a minimalist syntactic theory as well as to demonstrate that TAG makes clear otherwise arcane facts in natural language syntax. The central proposal of this thesis is twofold. First, TAG may be naturally extended to interface with the articulatory and interpretive components of the language faculty by making recourse to synchronous TAG (STAG). Second, once such a framework has been adopted, minimalist ideas regarding the interaction between syntax and linear order can be applied to deal with certain problematic examples in the TAG framework. TAG thus offers confirmation that in at least some cases, certain aspects of linear order are dependent on post-syntactic operations, so that syntax does not always wholly determine linear order. As a corollary of our proposal, we also demonstrate, through a case study in Niuean raising, that the TAG system makes clear predictions on phenomena that are difficult to describe in mainstream minimalist theories. Our argumentation for these proposals proceeds in three major stages. First, we formalize the synchronous TAG system that has to date been applied in a mostly piecemeal way by various researchers (see Shieber & Nesson 2006, Frank & Storoshenko 2012 for some examples). As a part of this formalization, we argue that the derivation of the LF object, but not the PF object, should make recourse to a more expressive version of the TAG system: multicomponent TAG, a variant that relaxes some constraints on the primitive units in the TAG system to yield greater expressive power. Second, we argue that the STAG system lends credence to the view that at least some word order is determined post-syntactically. In the past, researchers have presented ad hoc extensions of the expressive power of TAG to handle various difficult examples such as subject-to-subject raising in English questions and Irish and Welsh main clauses. We demonstrate that these extensions are both theoretically suspect and ultimately unnecessary given minimalist notions of the derivation: for many of the data motivating these extensions, there is independent evidence that their derivation in fact relies on post-syntactic rearrangements of certain verbal heads. Such examples are therefore well within the generative capacity of a framework with a TAG-based syntactic component that allows certain specific and well motivated post-syntactic rearrangements. Third, we demonstrate that not only is our particular system well motivated within the theoretical bounds of the MP, but also that it makes surprising and accurate empirical predications in cases that have otherwise defied analysis. Specifically, the Austronesian language Niuean features a peculiar instance of raising that has defied a satisfactory analysis since its discovery by Seiter (1980, 1983). We show that TAG makes the clear prediction that there is no raising in Niuean, then argue that this prediction is borne out under a careful examination of the facts. Given that the framework was developed almost exclusively based on the Indo-European language family, its ability to capture confounding behavior in a typologically dissimilar Austronesian language is a strong confirmation of its status as a reasonable alternative to mainstream minimalist syntactic theories

English vs. Esperanto: A comparative study of clausal word order in a Minimalist framework

Both English and Esperanto are international auxiliary languages, but English is deemed as an SVO language with rigid word order, while Esperanto, although considered predominantly SVO, allows for relatively free constituent order according to some scholars. The goal of this thesis is to determine if this is the case and identify whether this difference in constituency leniency can be attributed to parametric differences between English and Esperanto. To answer this, the thesis seeks to uncover the underlying syntactic structure of Esperanto in transitive constructions and compare it to the syntactic structure of English. This thesis studies the order of the subject, object, and verb in both main and embedded clause types to identify potential parametric differences and analyse the patterns through the Minimalist framework, and the Principles and Parameters model. To identify which transitive word order patterns are common in English and Esperanto corpora studies were conducted for both languages to identify the word order patterns used and how often they occurred. The English data were retrieved from the Georgetown University Multilayer corpus, while Arbobanko were used form the Esperanto data. In addition to the corpus study, a survey was conducted for the Esperanto data to test the acceptability of each word order. My data reflect less word order variety in Esperanto than a previous study conducted by Gledhill (2000). My data does, however, reflect a greater word order variety in Esperanto than English as stated by other scholars. These differences found in word order patterns between the two languages could, however, not be accounted for by significant parametric differences. Instead, a greater variation in non-obligatory constituent movements

Paracompositionality, MWEs and Argument Substitution

Multi-word expressions, verb-particle constructions, idiomatically combining phrases, and phrasal idioms have something in common: not all of their elements contribute to the argument structure of the predicate implicated by the expression. Radically lexicalized theories of grammar that avoid string-, term-, logical form-, and tree-writing, and categorial grammars that avoid wrap operation, make predictions about the categories involved in verb-particles and phrasal idioms. They may require singleton types, which can only substitute for one value, not just for one kind of value. These types are asymmetric: they can be arguments only. They also narrowly constrain the kind of semantic value that can correspond to such syntactic categories. Idiomatically combining phrases do not subcategorize for singleton types, and they exploit another locally computable and compositional property of a correspondence, that every syntactic expression can project its head word. Such MWEs can be seen as empirically realized categorial possibilities, rather than lacuna in a theory of lexicalizable syntactic categories.Comment: accepted version (pre-final) for 23rd Formal Grammar Conference, August 2018, Sofi

A VLSI architecture for enhancing software reliability

As a solution to the software crisis, we propose an architecture that supports and encourages the use of programming techniques and mechanisms for enhancing software reliability. The proposed architecture provides efficient mechanisms for detecting a wide variety of run-time errors, for supporting data abstraction, module-based programming and encourages the use of small protection domains through a highly efficient capability mechanism. The proposed architecture also provides efficient support for user-specified exception handlers and both event-driven and trace-driven debugging mechanisms. The shortcomings of the existing capability-based architectures that were designed with a similar goal in mind are examined critically to identify their problems with regard to capability translation, domain switching, storage management, data abstraction and interprocess communication. Assuming realistic VLSI implementation constraints, an instruction set for the proposed architecture is designed. Performance estimates of the proposed system are then made from the microprograms corresponding to these instructions based on observed characteristics of similar systems and language usage. A comparison of the proposed architecture with similar ones, both in terms of functional characteristics and low-level performance indicates the proposed design to be superior

On describing word order

One aspect that is always discussed in language descriptions, no matter how short they may be, is word order. Beginning with Greenberg 1963, it has been common to talk about word order using expressions such as "X is an SOV language", where "S" represents "subject", "0" represents "object", and "V" represents "verb". Statements such as this are based on an assumption of comparability, an assumption that all languages manifest the categories represented by "S", "0", and "V" (among others), and that word order in all languages can be described (and compared) using these categories

Pharasiot Greek : word order and clause structure

Pharasiot Greek is a Modern Greek dialect that was spoken in what is today central Turkey until 1923, when the population exchange between Greece and Turkey was enacted as a supplementary protocol to the Treaty of Lausanne. As of 2018, there are about 25 heritage speakers of the dialect in Northern Greece. This dissertation first offers a sketch grammar of the modern-day dialect based on data collected from the speakers between 2013-2016. Second, it offers an in-depth study of the basic structure of declarative main clauses in Pharasiot Greek, with particular emphasis on the functional sequence in the left periphery of the clause. The theoretical discussions are couched in the framework of generative grammar of Chomskyan tradition, further enriched with the cartographic approach to the clausal left periphery. Besides providing possibly the last sketch grammar of the dialect before its extinction, the dissertation also supports the central tenet of the cartographic approach, i.e., that syntactic representations are complex objects consisting of a sequence of hierarchically organised functional elements and it provides empirical evidence from Pharasiot Greek for a number of ordering restrictions in the left periphery

Issues on topics

The present volume contains papers that bear mainly on issues concerning the topic concept. This concept is of course very broad and diverse. Also, different views are expressed in this volume. Some authors concentrate on the status of topics and non-topics in so-called topic prominent languages (i.e. Chinese), others focus on the syntactic behavior of topical constituents in specific European languages (German, Greek, Romance languages). The last contribution tries to bring together the concept of discourse topic (a non-syntactic notion) and the concept of sentence topic, i.e. that type of topic that all the preceding papers are concerned with