Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 30 for “"Lexical Semantics"”.
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Issues in the philosophical foundations of lexical semantics
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Linguistics and Philosophy, 1993.
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On the Evaluation and Modelling of Context-sensitive Lexical Semantics
… and the modelling of such contextual effect on lexical meaning are pivotal to natural language understanding. This thesis sets out to answer the following two-fold research question: (1) how can we design a reliable evaluation framework that accurately reflects the challenges in contextual …
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Headedness in word formation and lexical semantics : evidence from Italiot and Cypriot
… focusing on headedness in Word Formation and Lexical Semantics. In particular, the purpose of my thesis is to enquire into the notion head with focus on the following three issues: (a) delimitation, (b) position, and (c) presence and absence of head in morphological configurations. In a …
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Sentence processing in Spanish as a second language: A study of context, background knowledge and word order
… Sentence processing research has found that lexical semantics, a type of word-level prior knowledge, can override the tendency of second language learners to assign. The present study investigates whether context and background knowledge, like lexical semantics, can override this first-noun …
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Geometry of compositionality
… in vector space, and its geometry reveals the lexical semantics. This thesis further explores the interesting geometric properties of word embedding, and looks into its interaction with the context representation. We propose an innovative method to detect whether a given word or phrase is used …
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Interpreting questions under attitudes
… that pose challenges for the compositional semantics of question-embedding sentences: (i) lexical variation among clause-embedding predicates with respect to the selection of complement types, (ii) variability in the exhaustivity of embedded questions and (iii) variability in the …
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Textual entailment from image caption denotations
… have become a powerful technique for modeling lexical semantics, but they have traditionally relied on ungrounded text corpora to identify semantically similar words. In contrast, this thesis explicitly models the denotation of linguistic expressions by building representations from grounded …
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Pragmatic referring functions as Montague semantic operators
In this dissertation, the thesis is defended that lexical semantics is not a subdomain of semantics, but rather a subdomain of pragmatics. That is, knowledge about the meaning of words is not part of one's knowledge of the language, but rather part of one's knowledge of the world. This distinction …
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Word alignment and smoothing methods in statistical machine translation: Noise, prior knowledge and overfitting
… Out-Of-Vocabulary words, paraphrases, lexical semantics (or non-literal translations), named-entities, coreferences, and transliterations. The first discussion is about word alignment where we propose a MWE-sensitive word aligner. The second discussion is about the smoothing methods for …
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Exploiting Cross-Lingual Representations For Natural Language Processing
… document classification, assist in monolingual lexical semantics like word sense induction, identify asymmetric lexical relationships like hypernymy between words in different languages, or combining supervision across languages through a shared feature space for cross-lingual entity linking. In …
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III-h verbs in biblical Hebrew: A study of short and long forms with special attention to the wayyiqtol conjugation
… (2) phonetic context; (3) genre; (4) verbal and lexical semantics; (5) diachronic environment; and (6) dialectical environment. In chapter 7, the data is summarized. The analysis of the data in this study suggests that the 118 III-h wayyiqtol long verbal forms that appear in the Hebrew Bible …
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Semantic Language models with deep neural Networks
… We refer to these models as joint LMs. They use lexical and semantic units jointly in the LM. The second LM structure uses the semantic context of an utterance, which can also be described as “what the system understands”, to search for a better hypothesis that improves the recognition and the …
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Children's production of locative expressions in English : the influence of geometric and extra-geometric factors
… More recently, researchers investigating the lexical semantics of spatial prepositions have begun to question this assumption by demonstrating that what objects are and how they are interacting can also affect the way we describe where they are in the world (extra-geometric factors). Following …
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Tense and Aspect in Old Japanese: Synchronic, Diachronic and Typological Perspectives
… distribution of the suffixes with respect to the lexical semantics of the co-occurring verbs and the overall synchronic system of the language. Furthermore, previous analyses have attempted to produce a uniform analysis covering the entire 700-year period from Old to Early Modern Japanese. In …
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'Cutting' and 'breaking' events in Akan
This study investigates the grammar and semantics of verbs that describe separation events in Asante Twi (Akan), a Kwa (Niger-Congo) language spoken in Ghana. It adopts a constructionist approach combined with a 'monosemic bias' perspective in the analysis. It theoretical starting point is that …
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Literary Tourism: Linking Cultural Capital, Tourist Experiences and Perceptions of Authenticity
… gaze offers an explanation of why certain lexical semantics were used by participants to describe the meaning of the concept and how this informs their overall perceptions. Additionally, a nexus between the Poldark tour guide’s cultural capital and their interpretive forms, including the …
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AXEL: A framework to deal with ambiguity in three-noun compounds
… (the AXEL System) by realising syntax and semantics at software levels. An instance of the AXEL system was created using a Design Research approach. Planned iterations were involved in the development to improve artefact performance. Such iterations boosted performance-improving, which …
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Generating and interpreting referring expressions in context
… and non-deterministic. This model includes a lexical semantics for a fragment of English noun phrases, which specifies the encoded meanings of determiners (quantifiers and articles), gradable and ambiguous modifiers. It performs in real time, even when the hypothesis space grows very large. …
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Morphological competence in neural natural language processing
… they learn to over-rely on word order and lexical semantics. Following this finding, I experiment with two methods of increasing the models' reliance on morphology: one based on the alteration of the training data and another involving an enhanced training objective. Finally, through …
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Dynamic speech networks in the brain: Dual contribution of incrementality and constraints in access to semantics
… and constraints in speech on access to lexical semantics. Through three E/MEG experiments I address two core issues in systems neuroscience of language: 1) What are the network dynamics underpinning cognitive computations that take place when we map sounds to rich semantic …
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