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Swaying the masses: The effect of argument strength and linguistic abstractness on attitudesBarber, Jessica 24 April 2009 (has links)
Two studies were conducted to investigate how the use of different types of language affects attitudes. Participants scrutinized arguments supporting a hypothetical toothpaste that differed in terms of argument strength (strong versus weak) and linguistic abstractness (abstract versus concrete) and subsequently evaluated the toothpaste. In addition, half of the participants in the second study were subjected to a cognitive load manipulation (i.e., rehearsing a ten-digit number) in order to limit their level of cognitive elaboration. Results indicated that strong arguments and those containing concrete descriptions led to more positive attitudes about the toothpaste, whereas weak messages comprised of abstract terms gave rise to the least favorable evaluations. These findings represent the first demonstration of the effect of language type on attitudes and suggest that future research into the functions of differential linguistic abstractness in a persuasive context will broaden our understanding of attitude change.
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Le problème de l’ontologie dans le Vorlesungen über Metaphysik de Immanuel Kant / The problem of ontology into immanuekl Kant’s Vorlesungen über MetaphysikLorini, Gualtiero 27 October 2010 (has links)
Le projet s’addresse à la résignification kantienne du concept de “metaphysique”, à partir de l’évolution de la notion d’ontologie dans les Vorlesungen über Metaphysik contenues dans le volume XXVIII de l’Akademie Ausgabe. Á la base de la recherche on entende mettre en relation Kant entre la tradition logique du siècle 17º et 18º, pour comprendre la façon dans laquelle Kant (peut) se confront avec la terminologie de la tradition, et en particulier avec la médiation de Wolff et Baumgarten de la metaphysique leibnizienne.An (peut) traiter de passer d’une conception de la metaphysique de façon deductive capable de rendre la raison de la réalité sur la base de principes qui s’imposent à celle-là, sans en être des déscrivés, à une conception inductive, dans laquelle est par l’examen de la réalité même qu’on peut en tirer les lois.Les Leçons semblent le lieu dans laquelle l’ontologie plus émerge comme instrument de cette résignification, qui voit intéressés: approche méthodologique, autonomie de la raison et l’absolue urgence d’une exigence normative. / The aim of the project is to study the new meaning gained by the concept of “metaphysics” through the evolution of the notion of ontology in the Vorlesungen über Metaphysik, placed in the XXVIII volume of the Akademie Ausgabe. As foundation of the research, we want to put into relationship Kant and the logical tradition of the 17º and 18º century, in order to understand the way in which Kant confronts himself with the technical terms of the tradition, in particular with the mediation of the leibnizian metaphysics represented by Wolff and Baumgarten. Here there is a step from a deductive conception of metaphysics to an inductive one. While the first can explain the reality starting from principles imposed on it, in the last the laws of reality are gained through an analysis of the reality the same.The lessons seem to be the place in which the ontology emerges in the best and clearest way as the instrument to get the new meaning of the metaphysics, we are target to: here we find a methodological approach, the autonomy of reason and the absolute urgency of a normative exigency.
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Zobrazení těla a tělesnosti v prózách Leopolda Laholy / The portrayal of a human body and it's bodiliness in the prose of Leopold LaholaFedurcová, Eva January 2011 (has links)
The thesis has analytical - interpretative nature and focuses on paradigmatic dealing with body and bodiliness motive in the prose of Slovak author Leopold Lahola. The subject of analysis is Lahola's prose collection - Posledná vec (The Last Thing). The thesis also overlaps comparatively to broader Central European context. Texts of Arnošt Lustig (Czech Republic), Imre Kertész (Hungary) and Henryk Grynberg (Poland) are reflected. The subject of comparison is the motive of body and bodiliness, means of expression, narrative point of view, and the concept of fable and sujet. Key words: the category of body and bodiliness, narrative techniques, text composition
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Cubical categories, TQFTs and possible new representations for the Poincare groupMajard, Dany January 1900 (has links)
Doctor of Philosophy / Department of Mathematics / Louis Crane / In this thesis we explore the possibilities of obtaining Topological Quantum Field Theories
using cobordisms with corners to break further down in the structure of manifolds
of a given dimension. The algebraic data obtained is described in the language of higher
category theory, more precisely in its cubical approach which we explore here as well. Interesting
connections are proposed to some important objects in Physics: the representations
of the Poincaré group. Finally we will describe in great details the topological tools needed
to describe the categories of cobordisms with corners and give some conjectures on their
nature.
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Data Driven Visual RecognitionAghazadeh, Omid January 2014 (has links)
This thesis is mostly about supervised visual recognition problems. Based on a general definition of categories, the contents are divided into two parts: one which models categories and one which is not category based. We are interested in data driven solutions for both kinds of problems. In the category-free part, we study novelty detection in temporal and spatial domains as a category-free recognition problem. Using data driven models, we demonstrate that based on a few reference exemplars, our methods are able to detect novelties in ego-motions of people, and changes in the static environments surrounding them. In the category level part, we study object recognition. We consider both object category classification and localization, and propose scalable data driven approaches for both problems. A mixture of parametric classifiers, initialized with a sophisticated clustering of the training data, is demonstrated to adapt to the data better than various baselines such as the same model initialized with less subtly designed procedures. A nonparametric large margin classifier is introduced and demonstrated to have a multitude of advantages in comparison to its competitors: better training and testing time costs, the ability to make use of indefinite/invariant and deformable similarity measures, and adaptive complexity are the main features of the proposed model. We also propose a rather realistic model of recognition problems, which quantifies the interplay between representations, classifiers, and recognition performances. Based on data-describing measures which are aggregates of pairwise similarities of the training data, our model characterizes and describes the distributions of training exemplars. The measures are shown to capture many aspects of the difficulty of categorization problems and correlate significantly to the observed recognition performances. Utilizing these measures, the model predicts the performance of particular classifiers on distributions similar to the training data. These predictions, when compared to the test performance of the classifiers on the test sets, are reasonably accurate. We discuss various aspects of visual recognition problems: what is the interplay between representations and classification tasks, how can different models better adapt to the training data, etc. We describe and analyze the aforementioned methods that are designed to tackle different visual recognition problems, but share one common characteristic: being data driven. / <p>QC 20140604</p>
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Dimensão global forte e complexidade na categoria derivada / Strong global dimension and complexity in the derived categoryMedeiros, Francisco Batista de 28 November 2014 (has links)
Apresentamos neste trabalho uma definição de complexidade na categoria derivada de complexos (limitados superiormente) de módulos sobre uma k-álgebra de dimensão finita. Um dos resultados que conseguimos foi uma relação entre a complexidade de objetos indecomponíveis e a noção de dimensão global forte. Mais especificamente, mostramos que a existência de um objeto indecomponível na categoria derivada limitada superiormente com complexidade não nula é condição suficiente para que a respectiva álgebra tenha dimensão global forte infinita. Também investigamos se existe uma relação entre as dimensões global e global forte da classe das álgebras shod (Coelho e Lanzilotta, 2009). Fomos motivados pela caracterização da classe das álgebras quase inclinadas (Happel, Reiten e Smalo, 1996) em termos da sua dimensão global forte, dada por D. Happel e D. Zacharia (2008), e pelo fato das álgebras shod serem uma generalização das álgebras quase inclinadas. Nossa conclusão foi que não existe, em geral, uma caracterização das álgebras shod em termos de sua dimensão global forte. Isto é, mostramos que para cada inteiro d > 2 existe uma álgebra shod estrita cuja dimensão global forte é igual a d. / We introduce in this thesis a definition of complexity in the derived category of bounded above complexes of modules over a finite dimensional k-algebra. One of our result shows a relationship between the complexity of indecomposable objects and the notion of strong global dimension. More specifically, we prove that the existence of an indecomposable object in the category derived bounded above whose complexity is not zero is a sufficient condition for corresponding algebra being of infinite strong global dimension. We also investigate the existence of a relationship between the global dimension and the strong global dimension of shod algebras (Coelho and Lanzilotta, 1999). Our motivation came from characterization of quasitilted algebras (Happel, Reiten and Smalo, 1996) by its strong global dimension, given by D. Happel and D. Zacharia (2008), and from the fact that shod algebras are a generalization of quasitilted algebras. Our conclusion was that there is not in general a characterization of shod algebras in terms of its strong global dimension. This conclusion comes from the fact that we showed that for each integer d > 2 there exists a strictly shod algebra whose strong global dimension is d.
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Um olhar da semiótica para os discursos em libras: descrição do tempo / A semiotic view of speeches in Libras: a description of timeMoreira, Renata Lúcia 26 September 2016 (has links)
O objetivo desta tese é descrever a temporalização em língua de sinais brasileira (libras), no âmbito da teoria semiótica de linha francesa. Para tanto, a proposta é analisar seis textos narrativos sinalizados por surdos ou intérpretes fluentes na língua. Os estudos sobre as línguas de sinais, como os de Liddell (2003), de Finau (2004), de Johnston & Schembri (2007), de Sinte (2013), têm apontado que as línguas sinalizadas contam com os mecanismos gerais de enunciação; que não há marcas morfológicas de flexãode tempoem seus verbos, e que há outros elementosgramaticais e discursivos envolvidos na construção das relações temporais no interior de seus textos, como gestos manuais (os itens lexicaisdicionarizadosque têm função de advérbio, como HOJE, ONTEM, AMANHÃ, etc.), e como outros gestosnão manuais,como movimentos do tronco, localização das mãos e direção do olhar do sinalizador. Esta tese vai tratar de mostrar a especificidade da organização do tempo no plano do conteúdo dos textos em libras. O estudo parte das pesquisas mencionadas e toma como base para a análise o trabalho realizado por Fiorin (2002) no português, para apresentar uma descrição dos mecanismos de instauração e organização do sistema temporal de cada um dos textos selecionados, mostrando como foram marcados o MR (momento de referência) e os diferentes momentos que compõem essas histórias. A proposta foi levantar todas as formas como a libras expressa o presente, o passado e o futuro em seus discursos, descrevendo, assim, o que Greimas & Courtés (2012) denominam como sendo a localização temporal em um texto e os efeitos de sentido da instauração do tempo. Os dados analisados foram transcritos no software ELAN (EUDICO Language Annotator), seguindo a proposta de McCleary, Viotti & Leite (2010). As análises feitas mostram que, em alguns textos do corpus, a marcação do tempo é feita por itens lexicais de tempo dicionarizados, por meio de debreagens enunciativas e enuncivas, e, em outros casos, quando não há uma marca temporal específica, a língua conta com outro mecanismo discursivo, uma embreagem heterocategórica, que permite que, por meio de uma neutralização das categorias da enunciação (pessoa, espaço, tempo), o tempo seja construído espacialmente e entendido a partir de elementos que tipicamente instauram pessoa e criam diferentes espaços nos textos. / The objective of this thesis is to describe the timing in Brazilian sign language Libras within the framework of French Semiotics. As such, the proposal is to analyze six narrative texts signaled by deaf people or fluent interpreters of the language. Studies of sign languages, such as those of Liddell (2003), Finau (2004), Johnston & Schembri (2007), and Sinte (2013), have pointed out that sign languages use the general mechanisms of enunciation, that there are no morphological markers of tense inflection of verbs in these languages, and that there are other grammatical and discursive elements involved in the construction of temporal relationships within signed texts, such as hand gestures (lexical items listed in dictionaries as adverbs, such as TODAY, YESTERDAY, TOMORROW, etc.) and other non-manual gestures, such as upper-body movements, hand positions, and the direction of the signers gaze. This thesis intends to demonstrate the specificity of the organization of time in the content of the texts in Libras. The present study takes the aforementioned studies as a starting point and uses the work of Fiorin (2002) about Portuguese Language as a basis for the analysis to present a description of the mechanisms for establishing and organizing the temporal system of each of the texts selected, showing how the MR (moment of reference) and the different moments that make up these stories were marked. The proposal was to survey all the forms by which Libras expresses the present, past and future in its discourses, thus describing what Greimas & Courtés (2012) call the temporal localization in a text and the effects of meaning in terms of establishing time. The analyzed data were transcribed in the ELAN (EUDICO Language Annotator)software following the proposal of McCleary, Viotti & Leite (2010). The analyses performed showed that in some texts of the corpus the marking of time is effected by dictionarized temporal lexical items, by means of enunciative and enuncive débrayages (shifting out), and, in other cases where there is no specific temporal marker, the language uses another discursive mechanismheterocategorical embrayage (shifting in)which uses a neutralization of enunciation categories (person, space, time) to allow time to be constructed spatially and understood based on elements that typically establish the person and create different spaces in the texts.
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[en] WHAT IS SKELETON OF A PROOF / [pt] O QUE É O ESQUELETO DE UMA DEMONSTRAÇÃOEDUARDO NAHUM OCHS 12 March 2004 (has links)
[pt] Considere os seguintes dois tipos de transformções em
demonstrações: 1) tornar uma prova mais incompleta,
apagando um lema ou uma construção que sejam parte da prova
e pondo no lugar um aviso dizendo isso é óbvio; 2) pegar um
passo que foi provado por um isso é óbvio, aplicar algum
algoritmo que encontre uma demonstração para esse passo, e
trocar o aviso pela demonstração de verdade. Nós vamos
considerar que a primeira operação vai em direção ao
esqueleto da demonstração, e que ela é como uma projeção;
a segunda operação é um levantamento de um esqueleto para
uma demonstração um pouco mais completa com aquele
esqueleto. Nós só estamos interessados em esqueletos que
possam ser levantados até provas completas usando algum
algoritmo conhecido. Nesta tese descrevemos uma linguagem -
o sistema DNC - que permite provar vários fatos sobre
categorias usando esqueletos. O método para o levantamento
é, a grosso modo, o seguinte: a partir do nome de um termo
em DNC nós podemos obter o seu tipo; por uma espécie de
Isomorfismo de Curry-Howard um tipo desses pode ser visto
como uma preposição numa certa lógica; um algoritmo que
obtenha uma demonstração para essa proposição retorna uma
árvore de demonstração (uma derivação) num certo sistema de
Dedução Natural, e essa árvore pode ser lida como um lambda-
termo do tipo dado - ela dá uma construção natural para um
objeto daquele tipo, e esse objeto muito frequentemente é
exatamente o objeto que esperávamos obter. Derivações em
DNC podem ser traduzidas para derivações num Pure Type
System com Dicionários (PTSD), e derivações em PTSDs podem
ser traduzidas para derivações em Pure Type Systems (PTSs);
daí, questões sobre a teoria da prova de DNC se tornam
questões sobre a teoria da prova de PTSs, que é bastante
bem-conhecida. Não só temos um levantamento de nomes de
termos em DNC para provas completas, mas também temos um
modo formal de levantar diagramas categóricos expressos na
linguagem do DNC para termos em DNC e daí para provas
completas; e se mudamos o dicionário embutido num PTSD
podemos fazer com que o mesmo esqueleto em DNC represente
provas em contextos diferentes; por exemplo, algumas provas
que aparentemente estão sendo feitas sobre a categoria dos
conjuntos podem ser reinterpretados como provas sobre um
topos arbitrário. Usamos essa idéia para apresentar de uma
forma simples - em que os passos óbvios omitidos são óbvios
num sentido muito preciso - a semântica categárica para
alguns PTSs, incluindo PTSs com polimorfismo e tipos
dependentes, e os PTSs para quais as derivações em DNC são
traduzidas. / [en] Consider the following two kinds of transformation on
proofs; the first is to make a a proof more incomplete, by
erasing a lemma or a construction from it and replacing it
by a tag saying this is obvious; the second kind of
transformation takes a step that is proved by a this is
obvious tag, applies some kind of prof-search algorithm to
it, and replaces the tag by a real proof for that step. We
will consider that the first operation goes toward the
skeleton towards a more complete proof that had that
skeleton as a projection. We are only interested in
skeletons can be lifted back to full proofs using some
known algorithm. In this thesis we can describe a language -
DNC - that lets us prove several categorical facts using
skeletons. The method for lifting these skeletons goes like
this: from the name of a DNC term we can obtain its type;
by a kind of Curry-Howard isomorphism a such type can be
seen as a proposition in a certain logic; proof-search for
that proposition will obtain a proof-tree for it in a
certain system of Natural Deduction, and that proof-tree
can be read as a lambda-term of given type - the proof-tree
gives a natural construction for an object of the given
type, that very often is exactly the object that we were
looking for. Derivations in DNC can be translated into
derivations in a Pure Type System with Dictionaries (PTSD),
and derivations in PTSDs can be translated into derivations
in Pure Type Systems (PTSs); so questions about the proof-
theory of DNC become questions about the proof-theory of
PTSs, whose properties are quite well-known. Also, not only
we can lift names of terms in DNC to full proofs in
different settings; for example, some proofs that
apparently are happening over the category of sets can be
reinterpreted as proofs over an arbitrary topos. We use
that idea to give a simple presentation (in which the
omitted obvious steps are obvious in a very precise sense)
of the categorical semantics for some PTSs - and that
includes PTSs into which the DNC derivations are translated.
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Iniciar é abstrato? É o lugar, é o tempo, é o espaço do caos cognitivo / Is it abstract to initiate? It is the place, it is the time, it is the space of the cognitive chaosVicente, Renata Barbosa 14 February 2014 (has links)
Esta pesquisa tem como objetivo descrever e analisar, a partir das construções linguísticas usadas para marcar a introdução de um texto dissertativo-argumentativo, pela perspectiva da Gramaticalização e da Cognição, as categorias linguísticas mais frequentes. Para isso usamos um corpus que totaliza 1600 redações de vestibular da FUVEST (Fundação para o vestibular USP), produzidas no período de 2004 a 2011, sendo 50% delas as melhores e as outras 50% as piores consideradas pela banca corretora. Teoricamente, fundamentamos esta pesquisa nos estudos sobre Cognição, a partir de Tomasello (2003), Damásio (2011), Del Nero (1997) e sobre Gramaticalização Heine, Claudi e Hünnemeyer (1991), Bybee (2010). Todo o material analisado teve tratamento quantitativo e qualitativo e chegou-se à determinação de que a categoria espaço é a categoria cognitiva mais frequente na defesa de uma tese e difere da categoria lugar. Foi possível, assim, constatar que espaço, embora em vários contextos seja utilizado como sinônimo de lugar, sob o ponto de vista linguístico-cognitivo lugar tem caráter mais concreto, por determinar localização física, enquanto espaço situa-se mais à direita do continuum das categorias cognitivas propostas por Heine, Claudi e Hünnemeyer (1991), após a categoria tempo, apontando para maior grau de abstração metafórica. Pudemos evidenciar que o processamento cognitivo para a produção textual envolve vários fatores mentais como o protosself (condição básica ao indivíduo), self central (todo o conhecimento adquirido) e self autobiográfico (a forma de externalizar o conhecimento adquirido em texto escrito). Destacamos também, a forma como o candidato começa uma dissertação, procurando criar um espaço conjunto de atenção, que é resultado de todos esses selves trabalhando juntos para a (inter)subjetividade materializada via categorias cognitivas. / This research has as aim to describe and analyze, from the linguistic constructs used to mark the introduction of a argumentative essay text, from the perspective of Grammaticalization and Cognition, the most frequent linguistic categories . So we use a corpus of essays totaling 1600 entrance FUVEST exam (Foundation for the exam - USP) , produced in the period 2004-2011 , 50% of them the best and the other 50% considered the worst by the examining board. Theoretically this research is based on studies about Cognition, from Tomasello (2003), Damasio (2011), and Del Nero (1997), about Grammaticalization, the bases are Heine, Claudi and Hünnemeyer (1991) , and Bybee (2010). All analyzed material had quantitative and qualitative treatment, from this was found a determination that the space category is the most frequent cognitive category in the defense of a thesis and differs from place category. It was thus possible to observe that space, although in various contexts is used as a synonym of place, from the linguistic-cognitive point of view place has more concrete aspect, for determining physical location, while space is located more to the right cognitive categories continuum proposed by Heine, Claudi and Hünnemeyer (1991), after the time category, pointing to a higher degree of metaphorical abstraction. We found that the cognitive processing for text production involves several factors such as mental protosself (basic condition to the individual), core self (all acquired knowledge) and autobiographical self (how to externalize the knowledge acquired in the written text). We also note how the candidate begins an essay, trying to create a space set of attention, which is a result of all these selves working together for the (inter) subjectivity materialized via cognitive categories.
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Frobenius categorification of cluster algebrasPressland, Matthew January 2015 (has links)
Cluster categories, introduced by Buan–Marsh–Reineke–Reiten–Todorov and later generalised by Amiot, are certain 2-Calabi–Yau triangulated categories that model the combinatorics of cluster algebras without frozen variables. When frozen variables do occur, it is natural to try to model the cluster combinatorics via a Frobenius category, with the indecomposable projective-injective objects corresponding to these special variables. Amiot–Iyama–Reiten show how Frobenius categories admitting (d-1)-cluster-tilting objects arise naturally from the data of a Noetherian bimodule d-Calabi–Yau algebra A and an idempotent e of A such that A/< e > is finite dimensional. In this work, we observe that this phenomenon still occurs under the weaker assumption that A and A^op are internally d-Calabi–Yau with respect to e; this new definition allows the d-Calabi–Yau property to fail in a way controlled by e. Under either set of assumptions, the algebra B=eAe is Iwanaga–Gorenstein, and eA is a cluster-tilting object in the Frobenius category GP(B) of Gorenstein projective B-modules. Geiß–Leclerc–Schröer define a class of cluster algebras that are, by construction, modelled by certain Frobenius subcategories Sub(Q_J) of module categories over preprojective algebras. Buan–Iyama–Reiten–Smith prove that the endomorphism algebra of a cluster-tilting object in one of these categories is a frozen Jacobian algebra. Following Keller–Reiten, we observe that such algebras are internally 3-Calabi–Yau with respect to the idempotent corresponding to the frozen vertices, thus obtaining a large class of examples of such algebras. Geiß–Leclerc–Schröer also attach, via an algebraic homogenization procedure, a second cluster algebra to each category Sub(Q_J), by adding more frozen variables. We describe how to compute the quiver of a seed in this cluster algebra via approximation theory in the category Sub(Q_J); our alternative construction has the advantage that arrows between the frozen vertices appear naturally. We write down a potential on this enlarged quiver, and conjecture that the resulting frozen Jacobian algebra A and its opposite are internally 3-Calabi–Yau. If true, the algebra may be realised as the endomorphism algebra of a cluster-tilting object in a Frobenius category GP(B) as above. We further conjecture that GP(B) is stably 2-Calabi–Yau, in which case it would provide a categorification of this second cluster algebra.
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