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Dissertations / Theses on the topic 'Distributional'

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1

Vecchi, Eva Maria. "Distributional semantic phrases vs. semantic distributional nonsense: Adjective Modification in Compositional Distributional Semantics." Doctoral thesis, Università degli studi di Trento, 2013. https://hdl.handle.net/11572/369284.

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In this thesis, I study the ability of compositional distributional semantics to model adjective modification. I present three studies that explore the degree to which semantic intuitions are grounded in the distributional representations of adjective-noun phrases, as well as provide insight into various linguistic phenomena by extracting unsupervised cues from these distributional representations. First, I investigate degrees of adjective modification. I contrast three types of adjectival modifiers – intersectively used color terms, subsectively used color terms, and intensional adjectives
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Vecchi, Eva Maria. "Distributional semantic phrases vs. semantic distributional nonsense: Adjective Modification in Compositional Distributional Semantics." Doctoral thesis, University of Trento, 2013. http://eprints-phd.biblio.unitn.it/1060/1/EMVecchi_Thesis.pdf.

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In this thesis, I study the ability of compositional distributional semantics to model adjective modification. I present three studies that explore the degree to which semantic intuitions are grounded in the distributional representations of adjective-noun phrases, as well as provide insight into various linguistic phenomena by extracting unsupervised cues from these distributional representations. First, I investigate degrees of adjective modification. I contrast three types of adjectival modifiers – intersectively used color terms, subsectively used color terms, and intensional adjectives –
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3

Schluter, Christian. "Topics in distributional analysis : the importance of intermediate institutions for income distributions, inequality and intra-distributional mobility." Thesis, London School of Economics and Political Science (University of London), 1999. http://etheses.lse.ac.uk/1487/.

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The unifying theme of this dissertation is the importance of intermediate institutions for income distributions, inequality and intra-distributional mobility. First, we analyse the effects of informational problems in a general equilibrium model with dynamically evolving wealth distributions. Poor agents need to borrow funds but a non-commitment problem on the capital market leads to persistent inequality. The next important institution to be examined is the tax-benefit system. The third chapter investigates the relative performance of alternative unemployment benefit regimes in a search-theor
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4

Bruni, Elia. "Multimodal Distributional Semantics." Doctoral thesis, University of Trento, 2013. http://eprints-phd.biblio.unitn.it/1075/1/EliaBruniThesis.pdf.

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Although being one very simple statement, the distributional hypothesis - namely, words that occur in similar contexts are semantically similar - has been granted the role of main assumption in many computational linguistic techniques. This is mostly due to the fact that it allows to easily and automatically construct a representation of word meaning from a large textual input. Among the computational linguistic techniques that are corpus-based and adopt the distributional hypothesis, Distributional semantic models (DSMs) have been shown to be a very effective method in many semantic-related
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King, Robert Arthur Ravenscroft. "New distributional fitting methods applied to the generalised [lambda] distribution." Thesis, Queensland University of Technology, 1999.

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6

Haili, Hailiza Kamarul. "Distributional problems in arithmetic." Thesis, University of Liverpool, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366245.

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7

Baker, Kirk. "Multilingual Distributional Lexical Similarity." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1221752517.

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8

Trenn, Stephan. "Distributional differential algebraic equations." Ilmenau Univ.-Verl, 2009. http://d-nb.info/99693197X/04.

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9

Bilyk, Dmytro. "Distributional estimates for multilinear operators." Diss., Columbia, Mo. : University of Missouri-Columbia, 2005. http://hdl.handle.net/10355/4139.

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Thesis (Ph. D.)--University of Missouri-Columbia, 2005.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (May 23, 2006) Vita. Includes bibliographical references.
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10

Ratko-Dehnert, Emil. "Distributional constraints on cognitive architecture." Diss., Ludwig-Maximilians-Universität München, 2013. http://nbn-resolving.de/urn:nbn:de:bvb:19-159387.

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Mental chronometry is a classical paradigm in cognitive psychology that uses response time and accuracy data in perceptual-motor tasks to elucidate the architecture and mechanisms of the underlying cognitive processes of human decisions. The redundant signals paradigm investigates the response behavior in Experimental tasks, where an integration of signals is required for a successful performance. The common finding is that responses are speeded for the redundant signals condition compared to single signals conditions. On a mean level, this redundant signals effect can be accounted for by seve
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11

Curran, James Richard. "From distributional to semantic similarity." Thesis, University of Edinburgh, 2004. http://hdl.handle.net/1842/563.

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Lexical-semantic resources, including thesauri and WORDNET, have been successfully incorporated into a wide range of applications in Natural Language Processing. However they are very difficult and expensive to create and maintain, and their usefulness has been severely hampered by their limited coverage, bias and inconsistency. Automated and semi-automated methods for developing such resources are therefore crucial for further resource development and improved application performance. Systems that extract thesauri often identify similar words using the distributional hypothesis that similar w
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12

Kruszewski, Martel Germán David. "Inference with Distributional Semantic Models." Doctoral thesis, University of Trento, 2016. http://eprints-phd.biblio.unitn.it/1394/1/PhDThesis-German_Kruszewski.pdf.

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Distributional Semantic Models have emerged as a strong theoretical and practical approach to model the meaning of words. Indeed, an increasing body of work has proved their value in accounting for a wide range of semantic phenomena. Yet, it is still unclear how we can use the semantic information contained in these representations to support the natural inferences that we produce in our every day usage of natural language. In this thesis, I explore a selection of challenging relations that exemplify these inferential processes. To this end, on one hand, I present new publicly available datase
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13

Pham, The Nghia. "Sentential Representations in Distributional Semantics." Doctoral thesis, Università degli studi di Trento, 2016. https://hdl.handle.net/11572/367711.

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This thesis is about the problem of representing sentential meaning in distributional semantics. Distributional semantics obtains the meanings of words through their usage, based on the hypothesis that words occurring in similar contexts will have similar meanings. In this framework, words are modeled as distributions over contexts and are represented as vectors in high dimensional space. Compositional distributional semantics attempts to extend this approach to higher linguistics structures. Some basic composition models proposed in literature to obtain the meaning of phrases or possibly sent
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Pham, The Nghia. "Sentential Representations in Distributional Semantics." Doctoral thesis, University of Trento, 2016. http://eprints-phd.biblio.unitn.it/1856/1/thesis_Nghia_The_Pham.pdf.

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This thesis is about the problem of representing sentential meaning in distributional semantics. Distributional semantics obtains the meanings of words through their usage, based on the hypothesis that words occurring in similar contexts will have similar meanings. In this framework, words are modeled as distributions over contexts and are represented as vectors in high dimensional space. Compositional distributional semantics attempts to extend this approach to higher linguistics structures. Some basic composition models proposed in literature to obtain the meaning of phrases or possibly sent
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15

Barrachina, Civera Xavier. "Distributional chaos of C0-semigroups of operators." Doctoral thesis, Universitat Politècnica de València, 2013. http://hdl.handle.net/10251/28241.

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El caos distribucional fue introducido por Schweizer y Smítal en [SS94] a partir de la noción de caos de Li-Yorke con el fín de implicar la entropía topológica positiva para aplicaciones del intervalo compacto en sí mismo. El caos distribucional para operadores fue estudiado por primera vez en [Opr06] y fue analizado en el contexto lineal de dimensión infinita en [MGOP09]. El concepto de caos distribucional para un operador (semigrupo) consiste en la existencia de un conjunto no numerable y un numero real positivo ¿ tal que para dos elementos distintos cualesquiera del conjunto no numer
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Bjorgo, Kimberly A. "Distributional ecology of Kanawha River fish." Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4814.

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Thesis (Ph. D.)--West Virginia University, 2006.<br>Title from document title page. Document formatted into pages; contains vii, 195 p. : ill. (some col.), col. maps. Vita. Includes abstract. Includes bibliographical references.
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Mitchell, Jeffrey John. "Composition in distributional models of semantics." Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/4927.

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Distributional models of semantics have proven themselves invaluable both in cognitive modelling of semantic phenomena and also in practical applications. For example, they have been used to model judgments of semantic similarity (McDonald, 2000) and association (Denhire and Lemaire, 2004; Griffiths et al., 2007) and have been shown to achieve human level performance on synonymy tests (Landuaer and Dumais, 1997; Griffiths et al., 2007) such as those included in the Test of English as Foreign Language (TOEFL). This ability has been put to practical use in automatic thesaurus extraction (Grefens
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18

McGuinness, Graeme Colquhoun. "A distributional approach to fragmentation equations." Thesis, University of Strathclyde, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.435117.

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19

Batchkarov, Miroslav Manov. "Evaluating distributional models of compositional semantics." Thesis, University of Sussex, 2016. http://sro.sussex.ac.uk/id/eprint/61062/.

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Distributional models (DMs) are a family of unsupervised algorithms that represent the meaning of words as vectors. They have been shown to capture interesting aspects of semantics. Recent work has sought to compose word vectors in order to model phrases and sentences. The most commonly used measure of a compositional DM's performance to date has been the degree to which it agrees with human-provided phrase similarity scores. The contributions of this thesis are three-fold. First, I argue that existing intrinsic evaluations are unreliable as they make use of small and subjective gold-standard
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20

Zagler, Martin. "Distributional consequences of capital tax coordination." SFB International Tax Coordination, WU Vienna University of Economics and Business, 2005. http://epub.wu.ac.at/906/1/document.pdf.

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This paper has two ambitions. First, we review the economic literature on tax coordination. Second, we argue that the taxation of capital is not an issue of efficiency, but instead an issue of equity. In particular, capital tax coordination can alter the vertical distribution of income between the production factors capital and labour. Capital is in perfectly elastic supply in a small open economy. Therefore the tax incidence falls to the immobile factor, labour. By contrast, capital is in inelastic supply at the international level, and therefore the capital tax incidence falls completely on
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21

Barry, Brendan(Brendan Cael). "Distributional models of ocean carbon export." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122321.

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Thesis: Ph. D., Joint Program in Physical Oceanography (Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2019<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 137-153).<br>Each year, surface ocean ecosystems export sinking particles containing gigatons of carbon into the ocean's interior. This particle flux connects the entire ocean microbiome and constitutes a fundamental aspect of marine microbial ecology and biogeochemical cycles. Particle flux is also variabl
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22

Grave, Edouard. "A Markovian approach to distributional semantics." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2014. http://tel.archives-ouvertes.fr/tel-00940575.

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This thesis, which is organized in two independent parts, presents work on distributional semantics and on variable selection. In the first part, we introduce a new method for learning good word representations using large quantities of unlabeled sentences. The method is based on a probabilistic model of sentence, using a hidden Markov model and a syntactic dependency tree. The latent variables, which correspond to the nodes of the dependency tree, aim at capturing the meanings of the words. We develop an efficient algorithm to perform inference and learning in those models, based on online EM
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23

Grave, Edouard. "A Markovian approach to distributional semantics." Electronic Thesis or Diss., Paris 6, 2014. http://www.theses.fr/2014PA066002.

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Cette thèse, organisée en deux parties indépendantes, a pour objet la sémantique distributionnelle et la sélection de variables. Dans la première partie, nous introduisons une nouvelle méthode pour l'apprentissage de représentations de mots à partir de grandes quantités de texte brut. Cette méthode repose sur un modèle probabiliste de la phrase, utilisant modèle de Markov caché et arbre de dépendance. Nous présentons un algorithme efficace pour réaliser l'inférence et l'apprentissage dans un tel modèle, fondé sur l'algorithme EM en ligne et la propagation de message approchée. Nous évaluons le
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24

Sandelius, Hugo. "Creating Knowledge Graphs using Distributional Semantic Models." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-199702.

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This report researches a method for creating knowledge graphs, a specific way of structuring information, using distributional semantic models. Two different algorithms for selecting graph edges and two different algorithms for labelling edges are tried, and variations of those are evaluated. We perform experiments comparing our knowledge graphs with existing manually constructed knowledge graphs of high quality, with respect to graph structure and edge labels. We find that the algorithms usually produces graphs with a structure similar to that of manually constructed knowledge graphs, as long
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25

Siminski, Peter Economics Australian School of Business UNSW. "Essays on the distributional impacts of government." Publisher:University of New South Wales. Economics, 2008. http://handle.unsw.edu.au/1959.4/41238.

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This thesis consists of three independent essays, unified by the common theme of the distributional impacts of government. The first paper estimates the price elasticity of demand for pharmaceuticals amongst high-income older people in Australia. It exploits a natural experiment by which some people gained entitlement to a price reduction through the Commonwealth Seniors Health Card (CSHC). The preferred model is a nonlinear Instrumental Variable (IV) difference-in-difference regression, estimated on repeated cross sectional survey data using the Generalised Method of Moments. No significant
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26

Trenn, Stephan [Verfasser]. "Distributional differential algebraic equations / von Stephan Trenn." Ilmenau : Univ.-Verl, 2009. http://d-nb.info/998021652/34.

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27

Mansoor, Rashid. "Assessing Distributional Properties of High-Dimensional Data." Doctoral thesis, Internationella Handelshögskolan, Högskolan i Jönköping, IHH, Economics, Finance and Statistics, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-22547.

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This doctoral thesis consists of five papers in the field of multivariate statistical analysis of high-dimensional data. Because of the wide application and methodological scope, the individual papers in the thesis necessarily target a number of different statistical issues. In the first paper, Monte Carlo simulations are used to investigate a number of tests of multivariate non-normality with respect to their increasing dimension asymptotic (IDA) properties as the dimension p grows proportionally with the number of observations n such that p/n → c where is a constant. In the second paper a ne
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Haro, Lopez Ruben Alejandro. "Data adaptive Bayesian analysis using distributional mixtures." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299509.

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Weeds, Julie Elizabeth. "Measures and applications of lexical distributional similarity." Thesis, University of Sussex, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.398753.

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McGregor, Stephen. "Geometric methods for context sensitive distributional semantics." Thesis, Queen Mary, University of London, 2018. http://qmro.qmul.ac.uk/xmlui/handle/123456789/36691.

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This thesis describes a novel methodology, grounded in the distributional semantic paradigm, for building context sensitive models of word meaning, affording an empirical exploration of the relationship between words and concepts. Anchored in theoretical linguistic insight regarding the contextually specified nature of lexical semantics, the work presented here explores a range of techniques for the selection of subspaces of word co-occurrence dimensions based on a statistical analysis of input terms as observed within large-scale textual corpora. The relationships between word-vectors that em
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Cordeiro, Silvio Ricardo. "Distributional models of multiword expression compositionality prediction." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0501/document.

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Les systèmes de traitement automatique des langues reposent souvent sur l'idée que le langage est compositionnel, c'est-à-dire que le sens d'une entité linguistique peut être déduite à partir du sens de ses parties. Cette supposition ne s’avère pas vraie dans le cas des expressions polylexicales (EPLs). Par exemple, une "poule mouillée" n'est ni une poule, ni nécessairement mouillée. Les techniques pour déduire le sens des mots en fonction de leur distribution dans le texte ont obtenu de bons résultats sur plusieurs tâches, en particulier depuis l'apparition des word embeddings. Cependant, la
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Cordeiro, Silvio Ricardo. "Distributional models of multiword expression compositionality prediction." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/174519.

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Sistemas de processamento de linguagem natural baseiam-se com frequência na hipótese de que a linguagem humana é composicional, ou seja, que o significado de uma entidade linguística pode ser inferido a partir do significado de suas partes. Essa expectativa falha no caso de expressões multipalavras (EMPs). Por exemplo, uma pessoa caracterizada como pão-duro não é literalmente um pão, e também não tem uma consistência molecular mais dura que a de outras pessoas. Técnicas computacionais modernas para inferir o significado das palavras com base na sua distribuição no texto vêm obtendo um consider
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33

Wu, Menghua M. Eng Massachusetts Institute of Technology. "Few-shot text classification with distributional signatures." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/130200.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, May, 2020<br>Date of graduation confirmed by MIT Registrar Office. "May 2020." Cataloged from student-submitted PDF of thesis.<br>Includes bibliographical references (pages 18-21).<br>We explore meta-learning for few-shot text classification. Meta-learning has shown strong performance in computer vision, where low-level patterns are transferable across learning tasks. However, directly applying this approach to text is challenging-lexical features highly informative for one task m
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Jacobsen, Mark R. "Efficiency and distributional impacts of environmental regulation /." May be available electronically:, 2007. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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Zhao, Yilu. "Distributional criteria for verbal valency in Chinese /." Leuven : Peeters, 1996. http://catalogue.bnf.fr/ark:/12148/cb38955510z.

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36

Wang, Mingliang. "Distributional modelling in forestry and remote sensing." Thesis, University of Greenwich, 2005. http://gala.gre.ac.uk/6337/.

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The use of distributional models in forestry is investigated, in terms of their capability of modelling distributions of forest mensurational attributes, for modelling and inventory purposes. Emphasis is put on: (i) the univariate and bivariate modelling of tree diameters and heights for stand-level modelling work, and (ii) heuristic methods for use and analysis of distributions which occur in multi-temporal EO imagery, (for the inventory-related tasks of land-use mapping, change detection and growth modelling). In univariate distribution modelling, a new parameterization of the widely-used Jo
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Rayner, Glen. "Statistical methodologies for quantile-based distributional families." Thesis, Queensland University of Technology, 1999.

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38

Tornés, Bes Elisabet. "Distributional patterns of diatom communities in Mediterranean rivers." Doctoral thesis, Universitat de Girona, 2009. http://hdl.handle.net/10803/7875.

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Aquesta tesi tracta la jerarquia i l'heterogeneïtat dels sistemes fluvials que afecten l'estructura de les comunitats bentòniques de diatomees. A nivell regional, es van buscar diferents grups de punts i les seves espècies indicadores, es va estudiar la resposta de les comunitats de diatomees als gradients ambientals, es va avaluar la utilitat de diferents índexs de diatomees i es va buscar el millor sistema de classificació per a condicions de referència. A nivell de conca, es volien definir els factors que determinen la distribució longitudinal de la diversitat de les comunitats de diatomees
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Lingard, Justin Jonathan Nicholas. "Size distributional analysis of urban airborne particulate matter." Thesis, University of Leeds, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414252.

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Gaarder, Marie Moland. "The distributional effects of illness and air pollution." Thesis, University College London (University of London), 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271115.

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Bakar, Rosni. "The distributional effects of higher education in Malaysia." Thesis, University of Exeter, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245943.

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Schiavone, S. E. "Distributional theories for multidimensional fractional integrals and derivatives." Thesis, University of Strathclyde, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382492.

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Dacuycuy, Lawrence Barcena. "Empirical essays on wage functional and distributional analyses." Kyoto University, 2006. http://hdl.handle.net/2433/136042.

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Glass, Thomas Westbrook. "Essays on the distributional aspects of Social Security /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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Ley, Christophe. "Univariate and multivariate symmetry: statistical inference and distributional aspects." Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210029.

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This thesis deals with several statistical and probabilistic aspects of symmetry and asymmetry, both in a univariate and multivariate context, and is divided into three distinct parts.<p><p>The first part, composed of Chapters 1, 2 and 3 of the thesis, solves two conjectures associated with multivariate skew-symmetric distributions. Since the introduction in 1985 by Adelchi Azzalini of the most famous representative of that class of distributions, namely the skew-normal distribution, it is well-known that, in the vicinity of symmetry, the Fisher information matrix is singular and the profile l
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Hirvela, Kyle Ray. "Park Access and Distributional Inequities in Pinellas County, Florida." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3150.

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Although environmental justice research has traditionally focused on environmental disamenities and health hazards, recent studies have begun to examine social inequities in the distribution of urban amenities such as street trees and parks that provide several direct and indirect health benefits to local residents. This thesis adds to this knowledge by evaluating distributional inequities in both distribution and access to parks in Pinellas County, the most densely populated and one of the most racially segregated counties in Florida. An important objective was to determine if neighborhoods w
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Bristow, Abigail Lesley. "The distributional impact of subsidies in urban public transport." Thesis, University of Newcastle Upon Tyne, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315602.

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Firici, Maria Carmen. "Distributional impacts of common agricultural policy adoption by Romania." Thesis, University of Aberdeen, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401443.

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The Common Agricultural Policy (CAP) of the European Union (EU) leads to higher prices for agricultural products than under free market conditions.  Therefore, the agricultural sector of a large country such as Romania plays a major role in EU accession negotiations.  In particular, the implementation of the CAP has different impacts on different socio-economic groups.  This study estimates, for the first time for Romania, the distributional impacts of the implementation of the CAP on different groups of agricultural producers and food consumers. Part of the research focuses on the assessment
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Thwaites, Peter. "Lexical and distributional influences on word association response generation." Thesis, Cardiff University, 2018. http://orca.cf.ac.uk/119182/.

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This thesis is the result of an attempt to investigate the determinants of word association responses. The aim of this work was to identify those properties of words - their frequency, grammatical class, and textual distribution, for example - which influence the generation of word association responses, and to align these effects with wider sycholinguistic views of the mental lexicon. The experimental work in the early chapters focuses on grammatical influences on wordassociation. In particular, it is demonstrated that both grammatical class and verb transitivity influence the type of respons
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Partlett, Christopher. "Asymmetry and other distributional properties in medical research data." Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/6348/.

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The central theme of this thesis is to investigate the use of non-parametric methods for making inferences about a random sample with an unknown distribution function. The overarching aim is the development of new methods to make inferences regarding the nature of the unknown distribution to enhance medical research. Initially,the focus is exclusively on the asymmetry of a random variable. In particular, a recently proposed measure of asymmetry provides the foundation for the proposal and development of a new test for symmetry. The potential applications of the test and measure are applied to
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