Dissertations / Theses on the topic 'Node representations'
To see the other types of publications on this topic, follow the link: Node representations.
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 27 dissertations / theses for your research on the topic 'Node representations.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
1
Marshall, Byron Bennett. "Concept Matching in Informal Node-Link Knowledge Representations." Diss., Tucson, Arizona : University of Arizona, 2005. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu%5Fetd%5F1145%5F1%5Fm.pdf&type=application/pdf.
Full text
2
Celikkanat, Abdulkadir. "Graph Representation Learning with Random Walk Diffusions." Electronic Thesis or Diss., université Paris-Saclay, 2021. http://www.theses.fr/2021UPASG030.
Full textAbstract:
L'objectif principal de l'Apprentissage de Représentations sur Graphes est de plonger les nœuds dans un espace vectoriel de petite dimension. Dans cette thèse, nous abordons plusieurs enjeux dans le domaine. Tout d'abord, nous étudions comment exploiter l'existence de communautés structurelles locales inhérentes aux graphes tout en apprenant les représentations. Nous apprenons des représentations améliorées de la communauté en combinant les informations latentes avec les représentations. De plus, nous nous concentrons sur l'expressivité des représentations. Nous mettons l'accent sur les distributions de familles exponentielles pour saisir des modèles d'interaction riches. Nous proposons un modèle qui combine les marches aléatoires avec une matrice de factorisation sous forme de noyau. Dans la dernière partie de la thèse, nous étudions des modèles permettant un bon compromis entre efficacité et précision. Nous proposons un modèle évolutif qui calcule des représentations binairesGraph Representation Learning aims to embed nodes in a low-dimensional space. In this thesis, we tackle various challenging problems arising in the field. Firstly, we study how to leverage the inherent local community structure of graphs while learning node representations. We learn enhanced community-aware representations by combining the latent information with the embeddings. Moreover, we concentrate on the expressive- ness of node representations. We emphasize exponential family distributions to capture rich interaction patterns. We propose a model that combines random walks with kernelized matrix factorization. In the last part of the thesis, we study models balancing the trade-off between efficiency and accuracy. We propose a scalable embedding model which computes binary node representations
3
Tibblin, Mark. "A node-based representation of gameplay scripts." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-274878.
Full textAbstract:
This project expands on the Unreal Engine 4 by providing an additional tool for it. The tool’s purpose is to convert C# code into the engine’s built in Blueprint system which is a visual scripting kind of language. This thesis will be going through the three big steps necessary to take in order to complete this kind of conversion. It includes parsing and evaluating C# code, creating an Abstract Syntax Tree from it, and generating a Blueprint from the result. Furthermore it will also explore how to structure a graph, as a Blueprint is visualizing through the use of graphs and nodes.
4
Ferreira, Ana Brígida Freitas. "Os nomes da dor: processos de representação nas narrativas de Rui Nunes." Master's thesis, Universidade de Évora, 2009. http://hdl.handle.net/10174/15707.
Full textAbstract:
O fulcro temático da dor é o eixo pendular sobre o qual deverão assentar
motivos que se desenrolam em diversos leitmotiven, e que instituem a problemática da
representação nos corpora narrativos de Rui Nunes seleccionados para esta dissertação
– Cães e A Boca na Cinza. Estas duas obras fundam um meta-paradigma que enforma
um irreversível estranhamento na recepção, e que se pauta por uma labiríntica
compleição diegética e discursiva. Mediante uma narrativa de cariz hiperbólico, importa
equacionar a dor individual, afunilada nas personagens e nas suas intrincadas
deambulações ontológicas, e que se pulveriza em metástases arquetípicas que
desembocam numa acepção colectiva e universal da dor.
A fragmentação do discurso instaura um complexo efeito de palimpsesto com a
fragmentação das categorias da narrativa, desde as personagens até aos lugares onde se
movem ao longo da diegese, num inusitado compromisso meta-reflexivo de causaconsequência
da dor e dos nomes com que se representa.
Ao longo de Cães e de A Boca na Cinza iremos explorar a constante querela
entre as personagens e a memória, ora numa busca incessante por estilhaços
mnemónicos de seres e lugares ausentes (Cães), ora numa contínua recusa de uma
memória que amplia constantemente uma compleição física antípoda do conceito de
humanização (A Boca na Cinza), para apurarmos os distintos confrontos existenciais, e
equacionarmos os processos com que são exaustivamente representados.
A questão da nomeação como representação verbal dos motivos da dor instaura,
igualmente, uma imbricada meta-reflexividade que faz enformar os nomes como
máscaras verosímeis da dor, mas numa permanente dialéctica entre o verbalizável e o
não-verbalizável, toldada pela fragmentação mnemónica a par com o estilhaçamento
referencial.
Julgamos, pois, pertinente, investigar alguns dos processos de representação da
dor na medida em que deixam, no leitor, a veemente chaga da perpetração da dor como
caminho único de humanização, como via única de verbalizar – e, assim, representar
exaustivamente – o humano; ABSTRACT: The pain’s thematic fulcrum is the pendulum on which shall be established the
motives that will develop on several leitmotiven, which will set up the representation
problematic in the narrative corpora of Rui Nunes chosen for this dissertation - The
Cães and the A Boca na Cinza. Both these books found a meta-paradigm, which forms
an irreversible odd feeling in the reception, marked by labyrinthine narrative and
discursive constitution. Taking into account an hyperbolic narrative, it’s important to
question the individual pain, funnelled on the character and its intricate ontological
wanderings, spread in archetypical metastasis that anchor on a collective and universal
meaning of pain.
The speech fragmentation establishes a complex palimpsest effect with the
fragmentation of the narrative categories, from the character to the places where they
move throughout the diegesis, in an unusual meta-reflexive commitment of causeconsequence
of pain, and the names on which it’s represented.
Throughout the Cães and the A Boca na Cinza we will explore the constant
struggle between the characters and the memory, either an endless seek of mnemonic
splinters of absent living beings and places (Cães), or a continuous refusal of a memory
that constantly enlarges an antipodal physical nature of the humanization concept (A
Boca na Cinza), to analyse the distinct existential debates, and to equate the processes
with which they are exhaustingly represented.
The nomination issue as a verbal representation of the pain motives restores, as
well, an imbricate meta-reflexivity that moulds the names as believable masks of pain,
but rolling on a permanent dialectic between the expressable and unexpressable,
overshadowed by the mnemonic fragmentation, hand by hand with the referential
shattering.
We consider relevant to investigate some of the representation processes, for
they leave in the reader a keen wound of pain perpetration as the single trail of
humanization, the only way of expressing – and then to exhaustingly represent – the
human kind.
5
MARANGONI, RICARDO ALEXANDRE. "O NOME E SEUS DESAFIOS: REPRESENTAÇÕES SOCIAIS DO DIRETOR/GESTOR ESCOLAR ACERCA DO SEU AGIR PROFISSIONAL." Universidade Metodista de Sao Paulo, 2017. http://tede.metodista.br/jspui/handle/tede/1660.
Full textAbstract:
Submitted by Noeme Timbo (noeme.timbo@metodista.br) on 2017-06-26T15:40:14Z
No. of bitstreams: 1
Ricardo Alexandre Marangoni2.pdf: 2379464 bytes, checksum: f4794eca1473d65460109527a55a3cb9 (MD5)Made available in DSpace on 2017-06-26T15:40:14Z (GMT). No. of bitstreams: 1 Ricardo Alexandre Marangoni2.pdf: 2379464 bytes, checksum: f4794eca1473d65460109527a55a3cb9 (MD5) Previous issue date: 2017-02-22
This study, attached to the research line “Teacher Formation” of the Post-Graduation in Education of the Metodista University of São Paulo, aimed to investigate the social representations of a group of school managers in a Public School system in the State of São Paulo about their professional act. The vast theoretical production about teaching work testifies the importance of investigating the teachers’ representations, but still they are few studies which approach the school, manager’s act, in a psychol-social perspective of the theory of social representations. In this sense, we based on it and we discussed the relationship between social-practical representations and social-experience representations. The accomplishment of this research covers two moments which interconnect: at the first, the formation of the theoretical corpus, whose approaches express what they should do, that is, the studies which deal with the school manager’s work and the legal guidelines that orientate his/her work. At the second, the data was collected through a questionnaire involving close and open issues. With the first, we knew the participants’ profile and, with the second, we have approached the social representations about their professional action. The gathering expressed what they say they do and what they say what they would like to do. Therefore, we pursued to investigate the following issues. How do they represent themselves? What represents managing a school? What are the social representations about their professional act? How are they built? The results, after the content analysis, we aimed a highly symbolic degree referred to the past, which is manifested in the ground of tensions around a role invested with meaning and sense, which are launched as a challenge. The representations of the researched managers are bound to a politically correct speech and, it was the reason that, at the end of this work, we decided to call upon the mute zone of the representations. With the latter, it became clear to us that the managers do not have a positive social representation to the aspect that pass through their professional act. As well as it has been also possible to confirm the thesis that the contradictions are on the base of the manager’s profession and they guide their work.
Este estudo, vinculado à linha de pesquisa “Formação de Educadores” do Programa de Pós-Graduação em Educação da Universidade Metodista de São Paulo, teve como objetivo investigar as representações sociais de um grupo de gestores escolares da Rede Pública de Ensino do Estado de São Paulo sobre o seu agir profissional. A vasta produção teórica sobre o trabalho docente atesta a importância de se investigar as representações dos professores, mas ainda são poucos os estudos que abordam o agir do gestor, na perspectiva psicossocial da teoria das representações sociais. Nesse sentido, apoiamo-nos nela e discutimos as relações entre representações sociais-práticas e representações sociais-experiências. A realização desta pesquisa abrange dois momentos que se interligam: no primeiro, a formulação do corpus teórico, cujas abordagens expressam o que eles deveriam fazer, ou seja, os estudos que tratam do trabalho do gestor e das diretrizes legais que orientam o seu trabalho. No segundo, os dados foram coletados através de um questionário, envolvendo questões fechadas e abertas. Com a primeira, conhecemos o perfil dos participantes e, com a segunda, nos aproximamos das representações sociais acerca do seu agir profissional. A coleta expressou o que eles dizem fazer e o que eles dizem que gostariam de fazer. Para tanto, procuramos investigar as seguintes questões: Como eles se representam? O que representa dirigir/gerir uma escola? Como desenvolvem o seu trabalho? Quais são as representações sociais acerca do seu agir profissional? Como elas são construídas? Os resultados, após análise de conteúdo, apontaram um grau altamente simbólico atribuído ao passado, que se manifesta no terreno das tensões em torno de um cargo investido de significações e sentidos, que se lançam como desafios. As representações dos gestores pesquisados ligam-se a um discurso politicamente correto e, foi por esse motivo que, ao final deste trabalho, decidimos recorrer a zona muda das representações. Com esta última, ficou-nos evidente que os gestores não possuem uma representação social positiva em relação aos aspectos que perpassam o seu agir profissional. Assim como, também foi possível confirmar a tese de que as contradições estão na base da profissão do gestor e orientam o seu trabalho.
6
Gois, Marcilyanne Moreira. "Representação Nó-profundidade em FPGA para algoritmos evolutivos aplicados ao projeto de redes de larga-escala." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-13012012-102907/.
Full textAbstract:
Diversos problemas do mundo real estão relacionados ao projeto de redes, tais como projeto de circuitos de energia elétrica, roteamento de veículos, planejamento de redes de telecomunicações e reconstrução filogenética. Em geral, esses problemas podem ser modelados por meio de grafos, que manipulam milhares ou milhões de nós (correspondendo às variáveis de entrada), dificultando a obtenção de soluções em tempo real. O Projeto de uma Rede é um problema combinatório, em que se busca encontrar a rede mais adequada segundo um critério como, por exemplo, menor custo, menor caminho e tempo de percurso. A solução desses problemas é, em geral, computacionalmente complexa. Nesse sentido, metaheurísticas como Algoritmos Evolutivos têm sido amplamente investigadas. Diversas pesquisas mostram que o desempenho de Algoritmos Evolutivos para Problemas de Projetos de Redes pode ser aumentado significativamente por meio de representações mais apropriadas. Este trabalho investiga a paralelização da Representação Nó-Profundidade (RNP) em hardware, com o objetivo de encontrar melhores soluções para Problemas de Projetos de Redes. Para implementar a arquitetura de hardware, denominada de HP-RNP (Hardware Parallelized RNP), foi utilizada a tecnologia de FPGA para explorar o alto grau de paralelismo que essa plataforma pode proporcionar. Os resultados experimentais mostraram que o HP-RNP é capaz de gerar e avaliar novas redes em tempo médio limitado por uma constante (O(1))Many problems related to network design can be found in real world applications, such as design of electric circuits, vehicle routing, telecommunication network planning and phylogeny reconstruction. In general, these problems can be modelled using graphs that handle thousands or millions of nodes (input variables), making it hard to obtain solutions in real-time. The Network Design is the combinatorial problem of finding the most suitable network subject to a evaluation criterion as, for example, lower cost, minimal path and time to traverse the network. The solution of those problems is in general computationally complex. Metaheuristics as Evolutionary Algorithms have been widely investigated for such problems. Several researches have shown that the performance of Evolutionary Algorithms for the Network Design Problems can be significantly increased through more appropriated dynamic data structures (encodings). This work investigates the parallelization of Node-Depth Encoding (NDE) in hardware in order to find better solutions for Network Design Problems. To implement the proposed hardware architecture, called HP-NDE (Hardware Parallellized NDE), the FPGA technology was used to explore the high degree of parallelism that such platform can provide. The experimental results have shown that the HP-NDE can generate and evaluate new networks in average time constrained by a constant (O(1))
7
Andersson, Johanna. "Begreppsträning och problemlösning för ett meningsfullt lärande." Thesis, Malmö universitet, Fakulteten för lärande och samhälle (LS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-35537.
Full textAbstract:
Detta självständiga arbete i fördjupningsämnet matematik utgör dels en kunskapsöversikt och dels en empirisk forskningsstudie med utgång i forskningsområdet matematisk begreppsförståelse och matematisk problemlösning och vänder sig i första hand till yrkesverksamma lärare och lärarstuderande. Den producerade kunskapsöversikten är huvudsakligen baserad på forskning som belyser och problematiserar elevers begreppsliga inlärning i samband med matematisk problemlösning. Den centrala frågeställningen som den empiriska forskningsstudien ämnar utreda är Vilken påverkan har begreppsträning på elevers matematiska problemlösningsförmåga? Forskningsstudiens deltagare utgör sju matematikstuderande gymnasieelever och det empiriska materialet (empirin) som dessa deltagare har producerat utgör begreppskartor och lösningsförslag med tillhörande reflektionstext. Två olika analysverktyg som är förankrade i tidigare forskning om begreppsliga representationer och aspekter av två konstruktivistiska vetenskapsteorier tillämpas vid kvalitativ och kvantitativ innehållsanalys av forskningsstudiens empiriska material. Den empiriska forskningsstudiens resultatanalys utgör huvudsakligen en kvantitativ poängbedömning av deltagarnas konstruerade begreppskartor och en kvalitativ bedömning av deltagarnas producerade lösningsförslag med tillhörande reflektionstext. Av den bedrivna forskningsstudiens resultatanalys framgår det att en god förmåga att tillämpa matematikbegrepp vid matematisk problemlösning förutsätter en god förmåga att under begreppsträning beskriva förhållandet mellan motsvarande matematikbegrepp. Vidare tyder studiens resultatanalys på att förmågan att under begreppsträning översätta mellan olika uttrycksformer för att representera matematikbegrepp innebär en god kommunikationsförmåga vid matematisk problemlösning. Avslutningsvis utmynnar diskussionsavsnittet i förslag på hur den empiriska forskningsstudiens resultatanalys via framtida forsknings- och utvecklingsarbeten kan bidra till att nya och effektiva bedömningsverktyg implementeras i matematikundervisningen.This independent project in the major subject mathematics constitutes partly a knowledge review and partly an empirical research study based on the research area of mathematical conceptual understanding and mathematical problem solving and is primarily aimed at teachers and teacher students. The knowledge review produced is mainly based on research that elucidate and problematizes students’ conceptual learning in conjunction with mathematical problem solving. The main question that the empirical research study aims to investigate is What influence does conceptual training in have on students’ mathematical problem solving ability? The participants in the research study constitute seven mathematics students in upper secondary school and the empirical material (empirical evidence) that these participants have produced constitutes concept maps and solution proposals with associated reflection text. Two different analysis tools that are rooted in previous research on conceptual representations and aspects of two constructivist science theories are applied to qualitative and quantitative content analysis of the empirical material of the research study. The empirical research study’s result analysis constitutes mainly a quantitative score assessment of the participants’ constructed concept maps and a qualitative assessment of the participants’ produced solution proposals with associated reflection text. The result analysis of the conducted research study shows that a good ability to apply mathematical concepts in mathematical problem solving requires a good ability to describe the relationship between the corresponding mathematical concepts during concept training. Furthermore, the result analysis of the study indicates that the ability to translate between different forms of expressions to represent mathematical concepts during concept training means a good communication ability in mathematical problem solving. Lastly, the discussion section culminates in suggestions on how the empirical research study’s result analysis through future research and development projects can contribute to the implementation of new and effective assessment tools in mathematical education.
8
Piereti, Saulo Augusto Ribeiro. "Configurador de redes baseado na representação nó-profundidade para efeito de estimação de estado." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/18/18154/tde-11092007-111648/.
Full textAbstract:
A modelagem em tempo real dos sistemas elétricos de potência (SEP) é extremamente importante para se obter uma operação em tempo real segura e confiável dos mesmos. O configurador de redes (CR) é uma ferramenta fundamental, para modelagem em tempo real dos SEP. A função do CR é determinar, em tempo real, a topologia atual da rede e a correspondente configuração de medidores, no modelo barra-ramo. Para isso, o configurador processa medidas lógicas, que consistem em estados de chaves e disjuntores, bem como dados armazenados em um banco de dados estático, que descreve a conexão dos equipamentos do sistema com as seções de barramento. Em razão de os CRs exigirem algoritmos de busca em um grafo, o desempenho desses algoritmos torna-se fortemente afetado pela forma com que as árvores são computacionalmente representadas. Propõe-se, neste trabalho, um CR tracking, para efeito de estimação de estado, que se baseia em uma nova forma de representar árvores, denominada representação nó-profundidade (RNP). A RNP permite um acesso direto para cada nó de um grafo e pode representar eficientemente árvores (grafos conexos e acíclicos) e florestas (um grafo com uma ou mais árvores). O CR proposto possui as seguintes características: (i) A RNP possibilita uma rápida atualização da topologia da rede, no modelo barra-ramo; (ii) Esta estrutura também permite a realização das etapas configuração de subestação e de rede ao mesmo tempo, diminuindo assim o tempo de processamento necessário para a obtenção do modelo barra-ramo. Para isso, o CR proposto representa cada seção de barramento do SEP como nó de um grafo e usa a RNP e outras duas estruturas de dados, que serão apresentadas no capítulo 5; (iii) Possibilita a associação dos medidores aos componentes do SEP, no modelo barra-ramo, de forma direta. Para isso, o CR proposto usa a RNP e cria barras fictícias para representar os componentes shunt do SEP. Testes realizados comprovam a eficiência e a robustez do configurador proposto tendo em vista os resultados coerentes obtidos para todos os testes, mesmo para os casos em que a mudança nos estados dos dispositivos seccionadores acarretava uma alteração drástica na rede elétrica.On-line models of power system networks have a wide variety of critical uses, covering from security monitoring and control to market operation. Network topology processor (NTP) is a key tool in providing robust and reliable on-line model of power networks. The function of NTP is the determination of the bus/branch topology model (BBTM) of the network and the assignment of metering devices to the components of the BBTM. In order to do this, the NTP processes: logical measurements that consist of switching-device (breakers and switchers) status; as well as a static data-base describing the network connectivity in terms of bus-sections and switching-devices. Since NTPs require search algorithms for graphs, their performance can be drastically affected by the adopted computational graph representation. This work proposes a new tracking NTP for state estimation purposes, that uses a new graph representation named node-depth representation (NDR). This encoding enables a straightforward access to each one of the graph nodes and can efficiently represent trees (acyclic and connected graphs) and forests (a graph with one or more trees). The proposed tracking NTP has the following characteristics: (i) Using NDR for representation of a BBTM of the network, this NTP can track, over time, the changes of the network connectivity in a very direct and fast way; (ii) Processes both steps substation and network configurations in the same time, reducing the CPU time necessary to obtain the BBTM. In order to do this, the proposed NTP represents each bus-section as a graph node and uses NDR and other two data structures, which will be presented in the chapter 5; and (iii) To assign metering devices to the components of the BBTM, in a straightforward way, the proposed NTP creates additional buses, called fictitious buses, to represent shunt devices. The results of several tests have shown the proposed NTP is reliable, fast and suitable for real-time operation.
9
Chesnel, André. "La note bleue : l'expression tsigane dans le jazz à travers la presse anglophone nord-américaine des années 1880 aux années 1940." Thesis, La Rochelle, 2018. http://www.theses.fr/2018LAROF001/document.
Full textAbstract:
Cette recherche s’inscrit dans un ensemble de travaux récents qui ont pour objet la contribution des Européens aux processus de création et d’évolution du jazz. Les migrants européens du XIXe et du début du XXe siècle véhiculent avec eux des singularités culturelles qui marquent la musique américaine. Le rôle des Tsiganes et de leurs représentations outre-Atlantique méritent d’être étudiés. Notre démarche historique s’appuie sur l’établissement d’un corpus issu de la lecture de la presse américaine des années 1880 aux années 1940, confronté à des sources variées dans une perspective pluridisciplinaire (histoire de l’art, musique et géographie). Un plan croisé permet d’étudier dans un premier temps la réception de l’image des Tsiganes dans les divertissements américains, dans la musique romantique et dans le jazz. Nous observons l’omniprésence du thème tsigane, l’apparition d’un véritable mythe et son appropriation américaine. Dans un second temps, nous montrons dans quelle mesure les Tsiganes et leurs musiques contribuent à définir le jazz et ses origines. Enfin, nous analysons dans une troisième partie la circulation des Tsiganes en Amérique et leur installation dans les grandes villes des États-Unis où des musiciens tsiganes jouent du jazzThis academic research work is part of a series of recent studies whose aim is to show to what extent Europeans contributed to the birth of jazz and how they marked the development of this new kind of music. American music bears the stamp of the cultural idiosyncrasies that 19th and 20th century European migrants brought along. It is worthwhile focusing on the role played by Gypsies and the way they were perceived across the Atlantic. The reading of the American press from the 1880s to the 1940s, together with a wide variety of other sources, has provided a solid basis for a historical analysis with a multidisciplinary approach including art history, music and geography. A double-entry framework allows one to first study how Gypsies were perceived and represented in American entertainments, romantic music and jazz. What is noticeable is the omnipresence of the Gypsy theme, the emergence of a myth and its Americanization. Secondly, one can see the way Gypsy musics help define jazz music and give clues as to its origins. The third part is devoted to the Gypsies’ nomadic way of life throughout the United States and their settling in large cities where Gypsy musicians played jazz
10
Souza, Erenice Jesus de. "Escola vista pelas crianças: uma análise das representações sociais da escola na voz (vozes) das crianças." Universidade Presbiteriana Mackenzie, 2011. http://tede.mackenzie.br/jspui/handle/tede/1830.
Full textAbstract:
Made available in DSpace on 2016-03-15T19:42:10Z (GMT). No. of bitstreams: 1
Erenice Jesus de Souza.pdf: 1512808 bytes, checksum: 2c0c7ae1b06e5ec19d17d7965ae72406 (MD5)
Previous issue date: 2011-08-12Fundação de Amparo a Pesquisa do Estado de São Paulo
With the advent of Law No. 11.274/06 a new order is established in the structure and operation of Basic Education in Brazil: the school for nine years duration with the inclusion of children six years old. This new reality leads to reflections on the school as a locus of observation of the relationships established therein and challenges researchers from various fields to devote special attention to understanding the child as a subject of rights and full social actor count for much with the reading their looks and voices that can significantly facilitate the improvement of the quality of education as a subjective public right. In this sense, this research aims to contribute reflections about how children perceive the universe of social representations called school, socio-historical situating it as an object to be investigated. Through the research methodology and qualitative approach in education, we selected a group of children enrolled in the first years of elementary education at a public school in the outskirts of São Paulo and use the techniques of semi-structured interviews with small groups and participant observation obtained major centers of thought and identify the significant elements of content analysis. Based on studies conducted by Pierre Bourdieu, Lev Vygotsky, William Corsaro, Sylvia Lane, Serge Moscovici and Laurence Bardin, among others, this reflection implies a concrete analysis of social representations that the individual has the world around him, the child in relation to school, immersed in a speech quite broad, where the gaps, contradictions and ideology could be detected
Com o advento da lei nº 11.274/06 é instituída uma nova ordem na estrutura e funcionamento da Educação Básica no Brasil: o ensino fundamental de nove anos de duração com a inclusão das crianças de seis anos de idade. Esta nova realidade provoca reflexões acerca da escola enquanto lócus de observação das relações que nela se estabelecem e desafia os pesquisadores das mais diversas áreas a dedicarem especial atenção à compreensão da criança enquanto sujeito de direitos e ator social pleno contando, para tanto, com a leitura de seus olhares e vozes que significativamente podem favorecer a melhoria da qualidade da educação enquanto direito público subjetivo. Neste sentido, a presente pesquisa visa contribuir com as reflexões acerca do modo como as crianças percebem o universo de representações sociais chamado escola, situando-o sociohistoricamente como objeto a ser investigado. Por meio da metodologia de pesquisa de abordagem qualitativa em educação, selecionamos um grupo de crianças matriculadas no primeiro ano do ensino fundamental de uma escola pública da periferia da Grande São Paulo e de uso das técnicas da entrevista semiestruturada com pequenos grupos e da observação participante obtivemos importantes núcleos de pensamento e identificamos elementos significativos à análise de conteúdo. Fundamentada nos estudos realizados por Pierre Bourdieu, Lev Vygotsky, Willian Corsaro, Silvia Lane, Serge Moscovici e Laurence Bardin, entre outros, a presente reflexão implica numa análise concreta das representações sociais que o indivíduo tem do mundo que o rodeia, ou seja, da criança em relação à escola, inserida num discurso bastante amplo, onde as lacunas, as contradições e a ideologia puderam ser detectadas
11
Moreira, Walter. "A construção de informações documentárias: aportes da linguística documentária, da terminologia e das ontologias." Thesis, Universidade de São Paulo, 2010. http://eprints.rclis.org/17437/1/TeseFinalRevisada_05Jul2010.pdf.
Full textAbstract:
Investigates theoretical and practical interfaces between terminology, philosophical
ontology, computational ontology and documentary linguistics and the subsidies that they offer for the construction of documentary information. It was established as specific objectives, the analysis of the production, development, implementation and use of ontologies based on the information science theories, the research on the contribution of ontologies for the development of thesauri and vice versa and the discussion of the philosophical foundation of the application of ontologies based on the study of ontological categories present in classical philosophy and in the contemporary proposals. It argues that the understanding of ontologies through the communicative theory of terminology contributes to the organization of a less quantitative access (syntactic) and more qualitative (semantic) of information. Notes that, in spite of sharing some common goals, there is little dialogue between the information science (and, inside it, the documentary linguistics) and computer science. It argues that the computational and philosophical ontologies are not
completely independent events, which have among themselves only the similarity of name,
and notes that the discussion of categories and categorization in computer science, does not always have the emphasis it receives in information science in studies on knowledge
representation. The approach of Deleuze and Guattari's rhizome, was treated as instigator of reflections on the validity of the hierarchical tree model structure and the possibilities of its expansion. It concludes that the construction of ontologies can not ignore the terminological
and conceptual analysis, as it's understood by the terminology and by the information
science accumulated in the theoretical and methodological basis for the construction of
indexing languages and, on the other hand, the construction of flexible indexing languages can not ignore the representational model of ontologies which are more capable for formalization and interoperability.
12
Hart, M. J. Alexandra. "Action in Chronic Fatigue Syndrome: an Enactive Psycho-phenomenological and Semiotic Analysis of Thirty New Zealand Women's Experiences of Suffering and Recovery." Thesis, University of Canterbury. Social and Political Sciences, 2010. http://hdl.handle.net/10092/5294.
Full textAbstract:
This research into Chronic Fatigue Syndrome (CFS) presents the results of 60 first-person psycho-phenomenological interviews with 30 New Zealand women. The participants were recruited from the Canterbury and Wellington regions, 10 had recovered. Taking a non-dual, non-reductive embodied approach, the phenomenological data was analysed semiotically, using a graph-theoretical cluster analysis to elucidate the large number of resulting categories, and interpreted through the enactive approach to cognitive science.
The initial result of the analysis is a comprehensive exploration of the experience of CFS which develops subject-specific categories of experience and explores the relation of the illness to universal categories of experience, including self, ‘energy’, action, and being-able-to-do.
Transformations of the self surrounding being-able-to-do and not-being-able-to-do were shown to elucidate the illness process.
It is proposed that the concept ‘energy’ in the participants’ discourse is equivalent to the Mahayana Buddhist concept of ‘contact’. This characterises CFS as a breakdown of contact. Narrative content from the recovered interviewees reflects a reestablishment of contact.
The hypothesis that CFS is a disorder of action is investigated in detail.
A general model for the phenomenology and functional architecture of action is proposed. This model is a recursive loop involving felt meaning, contact, action, and perception and appears to be phenomenologically supported.
It is proposed that the CFS illness process is a dynamical decompensation of the subject’s action loop caused by a breakdown in the process of contact.
On this basis, a new interpretation of neurological findings in relation to CFS becomes possible. A neurological phenomenon that correlates with the illness and involves a brain region that has a similar structure to the action model’s recursive loop is identified in previous research results and compared with the action model and the results of this research. This correspondence may identify the brain regions involved in the illness process, which may provide an objective diagnostic test for the condition and approaches to treatment.
The implications of this model for cognitive science and CFS should be investigated through neurophenomenological research since the model stands to shed considerable light on the nature of consciousness, contact and agency.
Phenomenologically based treatments are proposed, along with suggestions for future research on CFS. The research may clarify the diagnostic criteria for CFS and guide management and treatment programmes, particularly multidimensional and interdisciplinary approaches.
Category theory is proposed as a foundation for a mathematisation of phenomenology.
13
Aggarwal, Manasvi. "Embedding Networks: Node and Graph Level Representations." Thesis, 2020. https://etd.iisc.ac.in/handle/2005/4638.
Full textAbstract:
Graph neural networks gained significant attention for graph representation and classification in the machine learning community. For graph classification, different pooling techniques are introduced, but none of them has considered both the node's neighborhood and the long-range effects on nodes. For this, we propose a novel graph pooling layer R2POOL, which balances both the region-based and the graph-level importance of the nodes and retains the most informative nodes for the next coarser version of the graph. Further, we integrate R2POOL with our multi-level prediction and branch training strategies to learn graph representations and to enhance the model's capability for graph classification. We call the combined model R2MAN. Experiments show that our method has the potential to improve the performance of graph classification on various datasets.
Furthermore, attention mechanism applied on the neighborhood of a node improves the performance of graph neural networks. Typically, it helps to identify a neighbor node which plays a more important role in determining the label of the node under consideration. But in real-world scenarios, a particular subset of nodes together, but not the individual pairs in the subset, may be important to determine the label of the node and the graph. We address this problem and introduce the concept of subgraph attention for graphs. To show the efficiency of this scheme, we use subgraph attention for node classification downstream task. On the other hand, hierarchical graph pooling is promising in the recent literature. But, not all the graphs at different levels play an equal role in graph classification. Towards this end, we propose a novel graph classification algorithm called SubGattPool, which jointly learns the subgraph attention and employs two different attention mechanisms to find the important nodes in a hierarchy and the significance of graphs at different levels.
Improved performance over the state-of-the-art on multiple publicly available datasets for both node and graph classification shows the efficiency of the proposed algorithms.
14
Lin, Christy. "Unsupervised random walk node embeddings for network block structure representation." Thesis, 2021. https://hdl.handle.net/2144/43083.
Full textAbstract:
There has been an explosion of network data in the physical, chemical, biological, computational, and social sciences in the last few decades. Node embeddings, i.e., Euclidean-space representations of nodes in a network, make it possible to apply to network data, tools and algorithms from multivariate statistics and machine learning that were developed for Euclidean-space data. Random walk node embeddings are a class of recently developed node embedding techniques where the vector representations are learned by optimizing objective functions involving skip-bigram statistics computed from random walks on the network. They have been applied to many supervised learning problems such as link prediction and node classification and have demonstrated state-of-the-art performance. Yet, their properties remain poorly understood.
This dissertation studies random walk based node embeddings in an unsupervised setting within the context of capturing hidden block structure in the network, i.e., learning node representations that reflect their patterns of adjacencies to other nodes. This doctoral research (i) Develops VEC, a random walk based unsupervised node embedding algorithm, and a series of relaxations, and experimentally validates their performance for the community detection problem under the Stochastic Block Model (SBM). (ii) Characterizes the ergodic limits of the embedding objectives to create non-randomized versions. (iii) Analyzes the embeddings for expected SBM networks and establishes certain concentration properties of the limiting ergodic objective in the large network asymptotic regime.
Comprehensive experimental results on real world and SBM random networks are presented to illustrate and compare the distributional and block-structure properties of node embeddings generated by VEC and related algorithms. As a step towards theoretical understanding, it is proved that for the variants of VEC with ergodic limits and convex relaxations, the embedding Grammian of the expected network of a two-community SBM has rank at most 2. Further experiments reveal that these extensions yield embeddings whose distribution is Gaussian-like, centered at the node embeddings of the expected network within each community, and concentrate in the linear degree-scaling regime as the number of nodes increases.2023-09-24T00:00:00Z
15
(9179561), Hogun Park. "Neural Representation Learning for Semi-Supervised Node Classification and Explainability." Thesis, 2020.
Find full textAbstract:
Many real-world domains are relational, consisting of objects (e.g., users and pa- pers) linked to each other in various ways. Because class labels in graphs are often only available for a subset of the nodes, semi-supervised learning for graphs has been studied extensively to predict the unobserved class labels. For example, we can pre- dict political views in a partially labeled social graph dataset and get expected gross incomes of movies in an actor/movie graph with a few labels. Recently, advances in representation learning for graph data have made great strides for the semi-supervised node classification. However, most of the methods have mainly focused on learning node representations by considering simple relational properties (e.g., random walk) or aggregating nearby attributes, and it is still challenging to learn complex inter- action patterns in partially labeled graphs and provide explanations on the learned representations.
In this dissertation, multiple methods are proposed to alleviate both challenges for semi-supervised node classification. First, we propose a graph neural network architecture, REGNN, that leverages local inferences for unlabeled nodes. REGNN performs graph convolution to enable label propagation via high-order paths and predicts class labels for unlabeled nodes. In particular, our proposed attention layer of REGNN measures the role equivalence among nodes and effectively reduces the noise, which is generated during the aggregation of observed labels from distant neighbors at various distances. Second, we also propose a neural network archi- tecture that jointly captures both temporal and static interaction patterns, which we call Temporal-Static-Graph-Net (TSGNet). The architecture learns a latent rep- resentation of each node in order to encode complex interaction patterns. Our key insight is that leveraging both a static neighbor encoder, that learns aggregate neigh- bor patterns, and a graph neural network-based recurrent unit, that captures complex interaction patterns, improves the performance of node classification. Lastly, in spite of better performance of representation learning on node classification tasks, neural network-based representation learning models are still less interpretable than the pre- vious relational learning models due to the lack of explanation methods. To address the problem, we show that nodes with high bridgeness scores have larger impacts on node embeddings such as DeepWalk, LINE, Struc2Vec, and PTE under perturbation. However, it is computationally heavy to get bridgeness scores, and we propose a novel gradient-based explanation method, GRAPH-wGD, to find nodes with high bridgeness efficiently. In our evaluations, our proposed architectures (REGNN and TSGNet) for semi-supervised node classification consistently improve predictive performance on real-world datasets. Our GRAPH-wGD also identifies important nodes as global explanations, which significantly change both predicted probabilities on node classification tasks and k-nearest neighbors in the embedding space after perturbing the highly ranked nodes and re-learning low-dimensional node representations for DeepWalk and LINE embedding methods.
16
Bandyopadhyay, Sambaran. "Representing Networks: Centrality, Node Embeddings, Community Outliers and Graph Representation." Thesis, 2020. https://etd.iisc.ac.in/handle/2005/4646.
Full textAbstract:
Networks are ubiquitous. We start our technical work in this thesis by exploring the classical concept of node centrality (also known as influence measure) in information networks. Like clustering, node centrality is also an ill-posed problem. There exist several heuristics and algorithms to compute the centrality of a node in a graph, but there is no formal definition of centrality available in the network science literature. Lately, researchers have proposed axiomatic frameworks for the centrality of a node in a network. However, these existing formal frameworks are not generic in nature in terms of characterizing the space of influence measures in complex networks. In this work, we propose a set of six axioms in order to capture most of the intrinsic properties that any influence measure ideally should satisfy. We also characterize existing measures of centrality with respect to this framework.
Next, we focus more on the representation learning on networks. Network embedding is required as real life networks are large, extremely sparse and discrete in nature. We investigate the problem of unsupervised node representation in attributed networks through informative random walk. Edges are also useful for various downstream network mining tasks, but most of the existing homogeneous network representation learning approaches focus on embedding the nodes of a graph. So, we propose a novel unsupervised algorithm to embed the edges of a network, through the application of the classical concept of line graph of a network. The optimization framework of edge embedding connects to the concept of node centrality in the representation learning framework. Also, we conduct research on attributed hypergraphs. We propose a novel hypergraph neural network to represent and classify hypernodes.
Outlier analysis is another important problem in network science. All the real-world networks contain outlier nodes to some extent. Empirically we have shown that outliers can affect the quality of network embedding if not handled properly. So, we integrate the process of network embedding and outlier detection into a single framework. In this research thread, we first propose a matrix factorization based approach which minimizes the effect of outlier nodes in the framework of attributed network embedding. Next, we propose two neural network architectures, based on L2 regularization and adversarial training respectively, to minimize the effect of outliers on node embedding of an attributed network. Further, extending the concept of support vector data description, we propose a novel algorithm which integrates node embedding, community detection and outlier detection into a single optimization framework by exploiting the link structure of a graph.
In the last part of the thesis, we focus on graph level representation and tasks. First, we propose a supervised graph neural network based algorithm with hierarchical pooling strategy to classify a graph from a set of graphs. Next, we propose a novel GNN based algorithm for the unsupervised representation of a graph from a set of graphs, so that similar graphs are represented closely in the embedding space and dissimilar graphs are separated away.
17
Riesenhuber, Maximilian, and Tomaso Poggio. "A Note on Object Class Representation and Categorical Perception." 1999. http://hdl.handle.net/1721.1/7170.
Full textAbstract:
We present a novel scheme ("Categorical Basis Functions", CBF) for object class representation in the brain and contrast it to the "Chorus of Prototypes" scheme recently proposed by Edelman. The power and flexibility of CBF is demonstrated in two examples. CBF is then applied to investigate the phenomenon of Categorical Perception, in particular the finding by Bulthoff et al. (1998) of categorization of faces by gender without corresponding Categorical Perception. Here, CBF makes predictions that can be tested in a psychophysical experiment. Finally, experiments are suggested to further test CBF.
18
Chiu, Ya An, and 邱雅安. "Sparse Representation Based Mixed Odor Recognition by an Electric Nose." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/46596201384384765360.
Full textAbstract:
碩士國立清華大學
電機工程學系
104
Sparse Representation Classification (SRC) has performed well in the field of image analysis and speaker identification. In this thesis, we applied SRC in single and mixed odor recognition. First, we chose 20 kinds of odor sources and built an SRC-based algorithm to recognize them. Then, we produced 18 kinds of mixed odors by mixing two of the 20 kinds of odor sources. We attempted to recognize the mixed odors by learning from the training data set which consists of single odor data. A mixed odor could be recognized as a linear combination of the single odors by using SRC. Before performing odor recognition, we detected whether the sample was a single odor or a mixed odor with >70% accuracy using an SR-based method. Then, odors were analyzed by the following steps: data preprocessing, dimension reduction, classification and recognition, respectively. For data preprocessing, various methods were applied to compress and normalize the raw data. Afterwards, dimension reduction was achieved via feature selection and feature extraction. We used Sequential Backward Selection (SBS) for feature selection, and Principal Component Analysis (PCA) and Linear Discriminant Analysis (LDA) for feature extraction. For data classification, we applied K-Nearest Neighbor Classification (KNNC) and SRC. For recognition, we used multiclass classification for single odors identification, and compared the results of mixed odor identification produced by a multiclass algorithm and a multi-label algorithm. The mixed-odor dataset consisted of 18 pairs of odors, so there were 36 targets to identify. Results show that, as many as 14 targets could be successfully identified.
19
França, Fábio Humberto Pinto. "Ontological representation of tumor-node-metastasis classification and an ontology-driven classifier: a study on colorectal cancer." Master's thesis, 2015. http://hdl.handle.net/1822/40866.
Full textAbstract:
Dissertação de mestrado integrado em Engenharia Biomédica (área de especialização em Informática Médica)The most important staging system for cancer is the TNM Classification of Malignant Tumors (TNM) classification. The staging procedure compiles several clinical and pathological parameters based on the Extent of Disease (EOD). The objectives of this work are to present the Tumor-Nodes-Metastasis Ontology (TNM-O), a framework for the representation of the TNM classification of malignant tumors (TNM) system; to implement the TNM Colon and Rectum ontology, a modular ontology that represents the TNM classification for the colorectal tumors based on this framework; to develop an ontologically driven classifier application with the TNM-O as it’s knowledge base and to show the feasibility of this approach on real data. TNM Ontology (TNM-O) and TNM Colon and Rectum Ontology (TNMCRO) use the Foundational Model of Anatomy (FMA) for representing anatomical entities and BioTopLite2 (BTL2) as a domain top-level ontology. The classification rules of the TNM classification for colorectal tumors were represented as described in the literature. The automatic classifier for pathological data uses these ontologies as knowledge base. It was developed with JAVA using the Ontology Web Language (OWL)-application programming interface (API) to make the bridge between the application level and knowledge base. In this study, two datasets with real data where evaluated. The first dataset contained 382 entries that was classified by the regional lymph nodes. This study compared automatic classification with the expert one and obtained an accuracy of 55%. However, the classifier flagged inconsistencies and errors made during the manual tumor documentation that caused the misclassification. The second dataset contained 292 records carefully classified by a pathologist. In this dataset, automatic classification was optimal to all types of assessment. Therefore, this study proved that an ontology-driven automatic classifier enhances the consistency in tumor documentation and provides accurate instance classification during pathological assessment of tumors.
O sistema para classificação de tumores malignos mais aceite globalmente é o Tumor-Nódulos-Metásteses Classificação de Tumores Malignos (TNM). O procedimento de classificação compreende diversos parametros patológicos baseados na Extenção da Doença (EOD). Os objetivos deste trabalho consistem na apresentação da ontologia TNM-O, uma ferramenta utilizada na representação do sistema de classificação TNM; na implementação da ontologia Colon and RectumTNM-CR, uma ontologia modular que representa as regras de classificação TNM referentes aos cancros no cólon e no recto, no desenvolvimento de uma aplicação, cuja base de conhecimento é a ontologia TNM-O e no teste de viabilidade desta abordagem com dados reais. A ontologia TNM representa todas as definições e regras presentes na classificação TNM. Esta ontologia é o ponto central de um sistema desenvolvido com base numa arquitetura modular. Cada módulo consiste numa ontologia que representa as regras de classificação respetivas aos diferentes tumores. Estas ontologias podem ser importadas para a ontologia central, sendo que todas utilizam o Foundational Model of Anatomy (FMA) para representar os conceitos anatómicos e o BioTopLite 2 como ontologia de domínio. A aplicação desenvolvida para a classificação de ontologias tem como base de conhecimeto a ontologia TNM. Esta foi programada em JAVA utilizando a OWL-API como ponte entre a aplicação e a base de conhecimento. Neste estudo foram avaliados dois dataset com dados reais. O primeiro continha 382 registos que foram classificados pelos nódulos regionais. Comparando classificação automática com a manual obteve-se uma precisão de 55%. No entanto, a aplicação apontou inconsistências e erros feitos na documentação do tumor que causou este resultado. O segundo dataset consistia em 292 registos produzidos e classificados manualmente por um patologista através de documentos em texto. A classificação automática revelou resultados ótimos para todos os tipos de classificação Este estudo mostrou que a aplicação desenvolvida melhora a consistência e eficiência dos dados na documentação de tumores assim como providencia classificação automática exata durante o processo de diagnóstico do tumor.
20
Houghton, Sarah. "Finding the right note: the strategy use of eighth grade choral students during vocal sight-reading." Thesis, 2018. https://hdl.handle.net/2144/30684.
Full textAbstract:
Students’ strategy use is an assessment of their ability to assimilate, synthesize, and actualize knowledge shown to be directly related to success in sight-reading. The purpose of this exploratory, collective case study was to investigate the strategy use, and possible underlying cognitive music processes, of eighth grade middle school choral students when vocally sight-reading. More specifically, the objective of this research was to better understand the relationship between strategy use and accelerated learning in vocal music notation reading.
To create a coalesced conceptual lens, I merged the construct of audiation and pertinent findings from cognitive science research, specifically music reading literature in cognitive psychology. Seeing students’ strategy use through this combined lens allowed me to concentrate on the role of cognitive processes (perception, attention, memory, audiation) in the vocal sight-reading process and begin to distill how participants’ strategies improved or reduced sight-reading performance.
Fourteen eighth-grade middle school choral students participated (N = 14, 4 males, ages 13 to 14). Students participated in research activities individually, in one 30-minute session, in a nearby practice room at their middle school. I collected two types of quantitative data. First, I tallied scores from a sight-reading instrument, the Vocal Sight-Reading Inventory (Henry, 1999). Second, I categorized data from a researcher-designed Sophistication of Strategy Use Index (an accumulation of scores in five music cognition-based categories: looking behavior, chunking, long-term memory, auditory representations, and audiation). Furthermore, I gathered qualitative data through interviews, retrospective think-alouds (Ericsson & Simon, 1993), and video-stimulated recall interviews.
All students employed strategies, both cognitive and non-cognitive, singularly and in combination. Three major findings emerged:
1. Students employed strategies in three domains of knowledge, visual-only (most frequent), aural-only (least frequent), and visual-aural, and two underlying systems, self-awareness and music vocabulary.
2. Those who scored in the highest 50% on the sight-reading indicator employed
these strategies (two or three times) more frequently than those who scored in the lowest 50%
• read in visual chunks and by analogy;
• created and manipulated auditory representations;
• paired singular pitches with discrete staff placement locations;
• employed self-awareness in production and commission of errors; and
• remained aurally grounded in the tonality.
3. There was a positive and strong correlation (r = .84, p < .00) between students’ sophistication of strategy use scores and vocal sight-reading scores.
Results from the current study have implications for choral music educators in designing and implementing sight-reading curricula, especially with regards to content and pedagogy. Suggestions for sight-reading pedagogy include (a) scaffolding sight-reading instruction to guide sophisticated strategy use, (b) strengthening underlying musical cognitive processes, (c) emphasizing higher order relationships, especially chunking, and (d) increasing students’ meta-cognition surrounding vocal production and commission of errors.
21
Chang, Wen-Yu, and 張文于. "Vanishing Nodes: The Phenomena That Affects The Representation Power and The Training Difficulty of Deep Neural Networks." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/74v5yy.
Full textAbstract:
碩士國立臺灣大學
電信工程學研究所
107
It is well known that the problem of vanishing/exploding gradients creates a challenge when training deep networks. In this paper, we show another phenomenon, called vanishing nodes, that also increases the difficulty of training deep neural networks. As the depth of a neural network increases, the network''s hidden nodes show more highly correlated behavior. This correlated behavior results in great similarity between these nodes. The redundancy of hidden nodes thus increases as the network becomes deeper. We call this problem "Vanishing Nodes." This behavior of vanishing nodes can be characterized quantitatively by the network parameters, which is shown analytically to be proportional to the network depth and inversely proportional to the network width. The numerical results suggest that the degree of vanishing nodes will become more evident during back-propagation training. Finally, we show that vanishing/exploding gradients and vanishing nodes are two different challenges that increase the difficulty of training deep neural networks.
22
Amzar, Cornelius. "Workflow Mining: Ein Überblick mit Gegenüberstellung verschiedener Verfahren." Thesis, 2010. http://eprints.rclis.org/16841/6/Bachelorarbeit_final.pdf.
Full textAbstract:
Workflow Mining is a quite new and unknown technology. Many people do not know how large its area of application and how powerful its possibilities are. There are still open questions and discrepancies, which could not be solved by existing works. This thesis shows the basics and gives an overview over the state of the art. Such an overview misses until now. A selection of works by different authors is being summarized, Including recognition of anomalies, implicit dependencies and methods to visualize the produced model in a better way. All known procedures have their weaknesses and that's why criteria are introduced to compare their different procedures and to score their pros and cons. The topic security is also not left blank.
23
Schenk, Franz. "An Active Domain Node Architecture for the Semantic Web." Doctoral thesis, 2008. http://hdl.handle.net/11858/00-1735-0000-0006-B3B7-3.
Full text
24
Nagelschmidt, Matthias. "Integration und Anwendung von "Semantic Web"-Technologien im betrieblichen Wissensmanagement." Thesis, 2012. http://eprints.rclis.org/20801/1/nagelschmidt_semanticweb_wissensmanagement.pdf.
Full textAbstract:
An application scenario of Semantic Web description standards (i.e. RDF/RDFS and OWL) for knowledge management is presented. A process model of ontology engineering and ontology-based semantic indexing is proposed and concretized using a scenario-based example from the manufacturing industry. Benefits of the described approach are assumed to be more effective and efficient satisfaction of typical information needs, which leads to an improvement of process quality of information retrieval- and generic business processes.
25
Edlinger, Karl. "Informationsvisualisierung im Wissensmanagement : eine Analyse unterschiedlicher Visualisierungstechniken auf ihre Eignung für das Wissensmanagement." Thesis, 2006. http://eprints.rclis.org/7842/1/AC05381340.pdf.
Full textAbstract:
Knowledge workers who want to apply knowledge visualization have to determine which visualization tool suits their needs best. The aim of this thesis is to outline a catalogue of criteria to be used for evaluation of visualization tools' suitability for being used by methods of knowledge management. The thesis starts with a theoretical part that is based on a review of different approaches to knowledge management and information visualization. Information on different methods of the knowledge management as well as visualization tools is
given. The research part was worked out using information gathered from an analysis of different approaches to the evaluation of visualization tools.
In conclusion, it was found that there exist several criteria which can be used to evaluate the suitability of visualization tools for being used by methods of the knowledge management. The findings show that the weighting of the criteria is very important in order to ensure that the results can be compared to each other.
26
Cesanelli, Enzo. "Classificare il dominio della comunicazione secondo la teoria dei livelli di integrazione." Thesis, 2008. http://eprints.rclis.org/12280/1/cesanelli2008.htm.
Full textAbstract:
Classifying the communication domain according to the theory of integrative levels.
In order to organize a collection of web articles in the domain of communication studies, some knowledge organization
systems have been considered, including folksonomies, the Universal Decimal Classification (UDC), the Bliss Bibliographic Classification 2nd edition (BC2), and the Broad System of Ordering (BSO).
Special attention is paid to the Integrative Level Classification (ILC), a system under development allowing an interdisciplinary approach to information. This seems especially suitable for the domain of communication, where several levels of reality are involved at the same time, like those of signals, societies, organizations, cultures, and recorded knowledge.
The theory of levels of reality as developed by James Feibleman, Nicolai Hartmann and others, and applied to classification
by the Classification Research Group, is illustrated.
Tentative ILC notation for a sample of articles dealing with mass communication is constructed and discussed.
27
SCOLARI, BALDASSARE. "State Martyr Representation and Performativity of Political Violence." Doctoral thesis, 2018. http://hdl.handle.net/11393/251176.
Full textAbstract:
L’indagine prende in esame l’uso e la funzione politica della figura del martire nello spazio pubblico contemporaneo. La ricerca, pur nel riferimento consapevole alla consolidata letteratura ormai classica sull'argomento, ha tra i propri riferimenti filosofici specificatamente la teoria del discorso di Michel Foucault, con la sua metodologia dell’analisi discorsiva, e segue un approccio transdiscipli¬nare fra scienze culturali e filosofia. Essa ha come punto di partenza, come caso di studio, la rappresentazione mediale del politico e statista democristiano Aldo Moro quale martire di stato durante e dopo il suo assassinio per opera delle Brigate Rosse nel 1978.
La ricerca si sviluppa sulla scorta dell’ipotesi di una connessione fra procedure di legittimazione dell’autorità politica e delle strutture di potere e l’emergere della figura del martire di Stato. Le rappresentazioni martirologiche sono considerate pratiche discorsive performanti, attraverso le quali la morte di Moro viene ad assumere il significato di un martirio per lo Stato, la Repubblica Italiana e i valori democratici. L’ipotesi di lavoro è che, attraverso l’allocazione dello statuto di martire, la morte di Moro acquisisca il significato di un atto (volontario) di testimonianza della verità assoluta e trascendentale dei diritti umani, garantiti dalla costituzione (in particolare articolo 2 della Costituzione Italiana), così come della necessità dello Stato come garante di tali diritti. Attraverso questa significazione, la figura di Moro assurge inoltre a corpo simbolico dello Stato-nazione, legittimando lo stesso e fungendo da simbolo d’identificazione collettiva con la nazione. Si tratta qui di mettere in luce il rapporto intrinseco fra la figura del martire e una narrazione mitologica dello Stato, dove mito sta a indicare un «assolutismo del reale» (Absolutismus der Wirklichkeit). La ricerca vuole altresì mettere in luce la dimensione strumentale delle rappresentazioni martirologiche di Aldo Moro, le quali hanno mantenuto e tuttora mantengono un’efficacia performativa nonostante il chiaro ed evidente rifiuto, espresso da Moro stesso, di essere sacrificato «in nome di un astratto principio di legalità.»
La ricerca si propone di dimostrare la valenza di tale ipotesi di lavoro attraverso l’analisi dell’apparizione e diffusione delle rappresentazioni martirologiche di Aldo Moro in forme mediali differenti nell’intervallo temporale di quattro decenni. Il corpus delle fonti preso in esame include: articoli di giornali e riviste, i documenti prodotti da Moro e della Brigate Rosse durante i 55 giorni di sequestro, trasmissioni televisive (documentari e reportage), opere letterarie e cinematografiche. La teoria discorsiva e l’analisi archeologico-genealogica sviluppate da Michel Foucault fungono da base teorico-metodologica del lavoro.
Il taglio transdisciplinare dell’indagine rende necessaria la distinzione di due diversi piani di ricerca. In primo luogo, ci si pone come obiettivo di individuare e analizzare le diverse rappresentazioni come elementi di una formazione discorsiva il cui tema comune è la morte di Aldo Moro. Si tratta di operare una ricognizione, attraverso il lavoro empirico, dei modi di rappresentare l’uccisione di Aldo Moro e di individuare le regole che determinano ciò che può essere detto e mostrato a tale riguardo. In secondo luogo, a partire da qui, ci si propone di fare un’analisi critica dell’uso e della funzione del linguaggio e della simbologia di matrice religiosa all’interno della forma¬zione discorsiva presa in esame. L'obiettivo è di mettere così in luce non solo il dispositivo di legittimazione politica che presiede alla costruzione della figura del martire, ma anche la sua polivalenza.