1 |
Hybridní model metaheuristických algoritmů / Hybrid model of metaheuristic algorithmsŠandera, Čeněk Unknown Date (has links)
The main topic of this PhD thesis is metaheuristic algorithm in wider scope. The first chapters are dedicated to a description of broader context of metaheuristics, i.e. various optimization classes, determination of their omplexity and different approaches to their solutions. The consequent discussion about metaheuristics and their typical characteristics is followed by several selected examples of metaheuristics concepts. The observed characteristics serve as a base for building general metaheuristics model which is suitable for developing brand new or hybrid algorithms. The thesis is concluded by illustration of author’s publications with discussion about their adaptation to the proposed model. On the attached CD, there is also available a program implementation of the created model.
|
2 |
Hybridní model metaheuristických algoritmů / Hybrid Model of Metaheuristic AlgorithmsŠandera, Čeněk Unknown Date (has links)
The main topic of this PhD thesis is metaheuristic algorithm in wider scope. The first chapters are dedicated to a description of broader context of metaheuristics, i.e. various optimization classes, determination of their omplexity and different approaches to their solutions. The consequent discussion about metaheuristics and their typical characteristics is followed by several selected examples of metaheuristics concepts. The observed characteristics serve as a base for building general metaheuristics model which is suitable for developing brand new or hybrid algorithms. The thesis is concluded by illustration of author’s publications with discussion about their adaptation to the proposed model. On the attached CD, there is also available a program implementation of the created model.
|
3 |
Contribution des informations expérimentales et expertes à l'amélioration des modèles linéaires d'étalonnage multivarié en spectrométrie / Cooperation between experimental and expert informations for improving spectrometer calibrationsBoulet, Jean-Claude 13 December 2010 (has links)
Les spectres contiennent de l'information sur la composition d'échantillons. Cette information est extraite au moyen d'une première famille d'outils chimiométriques, les étalonnages. Une deu xième famille d'outils, les prétraitements, est destinée à enlever une information spectrale nuisible. Etalonnages et prétraitements sont construits à partir de deux types d'informations: (1) les informations expérimentales basées sur l'expérience; (2) les informations expertes basées sur la connaissance a priori. L'objectif de la thèse est d'étudier les complémentarités et synergies entre ces deux types d'informations. Après une étude bibliographique, un modèle général commun aux étalonnages et prétraitements est proposé. L'information utile ou nuisible contenue dans un spectre est obtenue par projection orthogonale de ce spectre (selon un métrique Sigma) sur une matrice P dont les colonnes constituent une base de l'espace vectoriel associé à l'information utile ou nuisible. Selon les cas, l'information utile est conservée alors que l'information nuisible est éliminée. Le modèle général est ensuite implémenté par deux nouvelles méthodes. L'IDC-Improved Direct Calibration est une méthode d'étalonnage direct utilisant conjointement des informations expérimentales et expertes. Ensuite VODKA-PLSR est une généralisation de la PLSR. Un vecteur r est mis en évidence, il permet d'inclure de l'information experte dans le modèle. En conclusion ce travail permet une vision plus synthétique des modèles existants, propose deux nouveaux modèles d'étalonnage et ouvre de nombreuses possibilités pour créer de nouveaux modèles d'étalonnage et de prétraitement. / Spectra contain informations about the composition of samples. This information is obtained using calibration. Harmful spectral information can be previoulsy withdrawn using pretraitments. Both calibration and pretraitment models are based on two types of informations: (1) experimental information based on measurements onto samples; (2) expert information based on a previous knowledge. The aim of this thesis is to study the links between those two types of information. After a biography review, a general model including both calibrations and pretraitments is proposed. The usefull or harmful spectral information is obtained after spectra have been orthogonaly projected (with a Sigma metrix ) onto a P matrix whose columns define a basis of the vectorial subspace described by the usefull or harmful information. Thus usefull information is kept whereas harmful information is withdrawn. Two new methods are proposed. First IDC-Improved Direct Calibra tion is a direct calibration method using both experimental and expert informations. Then VODKA-PLSR is a generalisation of PLSR. A vector r permits the use of expert information by the regression model. To conclude, this works allows a global view of existing tools, proposes two new models and offers new possibilities for building new models.
|
4 |
Modelos para partículas massivas de spin-2 via tensor simétrico / Models for massive particles of spin-2 via symmetric tensorNogueira, Pedro Henrique Fusco 26 February 2018 (has links)
Submitted by Pedro Henrique Fusco Nogueira null (pedrofusconogueira@gmail.com) on 2018-03-04T20:59:18Z
No. of bitstreams: 1
Dissertação Final.pdf: 530386 bytes, checksum: 67ed197e0d666d071b9b062d11c6ee5f (MD5) / Approved for entry into archive by Pamella Benevides Gonçalves null (pamella@feg.unesp.br) on 2018-03-05T19:05:49Z (GMT) No. of bitstreams: 1
nogueira_phf_me_guara.pdf: 530386 bytes, checksum: 67ed197e0d666d071b9b062d11c6ee5f (MD5) / Made available in DSpace on 2018-03-05T19:05:49Z (GMT). No. of bitstreams: 1
nogueira_phf_me_guara.pdf: 530386 bytes, checksum: 67ed197e0d666d071b9b062d11c6ee5f (MD5)
Previous issue date: 2018-02-26 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Neste trabalho buscamos encontrar a teoria mais geral para partículas massivas de spin-2 via tensor simétrico. Começamos expondo o caminho que seguiremos para calcular a amplitude de dois pontos saturada por fontes e obter o conteúdo físico de uma dada teoria livre. Como primeira tentativa partimos de uma teoria semelhante a teoria de Fierz-Pauli, mas com termo de massa generalizado. Após isto exploramos uma densidade lagrangiana mais geral, com no máximo duas derivadas. Em ambos os casos retornamos a teoria de Fierz-Pauli como a única viável. Em busca de maior generalidade, posteriormente, propomos uma densidade lagrangiana com coeficientes arbitrários e com potência arbitrária nas derivadas, relacionamos os coeficientes desta teoria com os coeficientes da densidade lagrangiana encontrada anteriormente na literatura via imersão de Euler das equações de Fierz Pauli, o propósito foi verificar se existe uma teoria mais geral que esta última. Por último, a fim de complementar o assunto tratado neste trabalho, verificaremos as consequências de uma dada simetria local no conteúdo físico de uma teoria, de spin-2 massiva. / In this project we seek to find the most general theory for massive particles of spin-2 through symmetric tensor. We begin by the path we will follow to calculate the amplitude of two points, saturated by sources, and obtain physical contente of a free theory. As first attempt, we started with a theory similar to the Fierz-Pauli’s theory, but with a generalized mass term. After this we explored a more general Lagrangian density, with two derivatives in the most. In both cases we return to the Fierz-Pauli’s theory as the only viable one. In search of a greater generality, we later propoused a Lafrangian density with arbitrary coefficients and arbitrary power in the derivatives. We related the coefficients of this theory with the Lagrangian density’s coefficients found previously in the literature through imersão de Euler of the Fierz-Pauli’s equations. The purpose was to verify if there is a more general theory than this last one. Finally, in order to complemente the subject discussed in this paper, we will verify the consequences of a certain local symmetry on the physical contente of a massive spin-2 theory
|
5 |
Decisão de mix de produtos: comparando a teoria das restrições, o custeio baseado em atividades e o modelo geral com a utilização de custos discricionários. / Product mix decision: comparing theory of constraints, activity based costing, general model and discretionary cost considered discretionary cost.Nélo, Ana Maria 27 March 2008 (has links)
A determinação do mix de produtos deve considerar fatores internos e externos à empresa. Os externos referem-se principalmente aos preços de produtos, empresas competidoras, produtos substitutos, produtos complementares, canais de distribuição, fornecedores, clientes, localização industrial, impostos, taxas de juros dentre outros. Os fatores internos estão relacionados principalmente ao uso da capacidade industrial, à oferta (preços e quantidades) de matérias-primas, de recursos humanos, aos produtos conjuntos etc. Observe-se que os fatores externos causam impactos nos preços dos produtos finais e dos insumos, enquanto os internos influenciam principalmente o custo de produtos. Em suma, a determinação do mix de produtos influencia diretamente a competitividade empresarial. Na literatura especializada identificam-se vários métodos de custeio para medir adequadamente o custo do produto, tais como: custeio direto (variável); custeio por absorção, custeio pleno (full cost), e custeio por atividades (ABCActivity Based Costing). Estes métodos divergem em função da maneira com que são apropriados os fatores que compõem o custo dos produtos. A presente pesquisa mostra o mix de produtos, o uso da capacidade industrial e os métodos de custeios analisados conjuntamente por meio de programação matemática (programação Linear), com o objetivo de simular quantitativamente a eficiência de cada método. A tradução dos diferentes paradigmas em modelos matemáticos elimina a possibilidade dos autores refutarem métodos de custeio em função de suas tendências teóricas. Para demonstrar as limitações da Teoria das Restrições e do Modelo Geral de Kee e Schmidt foi realizada uma pesquisa bibliográfica que contempla as principais referências sobre os principais métodos de custeio e modelos de tomada de decisão aplicados à possibilidade dos autores refutarem métodos de custeio e modelos de tomada de decisão aplicados à seleção de mix de produtos. O modelo ABC revelou resultados mais consistentes para definição de mix de produtos quando da expansão ou redução de capacidade produtiva, ao se considerarem os custos discricionários. / The optimal product mix selection must consider internal and external factors of a manufacturing company. The external ones are mainly products prices, industry competition, substitute and complementary products, distribution channels, industrial location, and government taxes among others. The internal factors are related mainly to the use of the industrial capacity, to raw materials and human resources supply (prices and quantities), and to joint production. The external factors cause impacts in the prices of the input and final products, while the interns influence mainly the cost of products. In short, the determination of the product mix influences directly the company competitiveness. Our research has done a bibliographical research and a comparative analysis of three important frameworks to support the product-mix optimal decision: Activity based costing (ABC), Goldratt´s Theory of Constraints and the Kee & Schmidt General Model. In specialized literature some costing methods are identified to the properly measurement of products costs, such as: direct costing, burden costing, full costing, and activity based costing (ABC). These methods differ in the way that productive factors are distributed to the products costs. This thesis shows the product mix, the use of the industrial capacity and the costing methods analyzed jointly by means of mathematical programming, aiming to simulate each method performance. The translation of different frameworks in mathematical models eliminates the possibility to refute costing methods as function of author theoretical meanings. It is shown that the ABC surpasses the two other models for presenting the biggest profit and using less resources in the productive activities, when is considered discretionary costs.
|
6 |
Fuktförebyggande åtgärder för ett bättre klimat i den småländska stenkyrkans krypgrund / Moisture preventative actions, in order to ensure a better environment in the crawl space of thestonechurches of SmålandEkelöf, Henrik, Hasselby, Fabian January 2010 (has links)
Fukt i kyrkans krypgrund är ett ”växande” problem som på senare tid uppmärksammats alltmer. I denna studie har flera möjliga lösningar undersökt, vidare har en allmän angreppsmodell formulerats för att underlätta framtida utredningar. Studien visar bland annat att styrning efter mögelrisken är önskvärt för att få ett energioptimerat och garanterat mögelfritt klimat. Åtgärdsförslag såsom sorptionsavfuktare samt värmning genom elradiator direkt i krypgrunden är möjliga lösningar som med ett litet energitillskott förbättrar klimatet i krypgrunden avsevärt.
|
7 |
Decisão de mix de produtos: comparando a teoria das restrições, o custeio baseado em atividades e o modelo geral com a utilização de custos discricionários. / Product mix decision: comparing theory of constraints, activity based costing, general model and discretionary cost considered discretionary cost.Ana Maria Nélo 27 March 2008 (has links)
A determinação do mix de produtos deve considerar fatores internos e externos à empresa. Os externos referem-se principalmente aos preços de produtos, empresas competidoras, produtos substitutos, produtos complementares, canais de distribuição, fornecedores, clientes, localização industrial, impostos, taxas de juros dentre outros. Os fatores internos estão relacionados principalmente ao uso da capacidade industrial, à oferta (preços e quantidades) de matérias-primas, de recursos humanos, aos produtos conjuntos etc. Observe-se que os fatores externos causam impactos nos preços dos produtos finais e dos insumos, enquanto os internos influenciam principalmente o custo de produtos. Em suma, a determinação do mix de produtos influencia diretamente a competitividade empresarial. Na literatura especializada identificam-se vários métodos de custeio para medir adequadamente o custo do produto, tais como: custeio direto (variável); custeio por absorção, custeio pleno (full cost), e custeio por atividades (ABCActivity Based Costing). Estes métodos divergem em função da maneira com que são apropriados os fatores que compõem o custo dos produtos. A presente pesquisa mostra o mix de produtos, o uso da capacidade industrial e os métodos de custeios analisados conjuntamente por meio de programação matemática (programação Linear), com o objetivo de simular quantitativamente a eficiência de cada método. A tradução dos diferentes paradigmas em modelos matemáticos elimina a possibilidade dos autores refutarem métodos de custeio em função de suas tendências teóricas. Para demonstrar as limitações da Teoria das Restrições e do Modelo Geral de Kee e Schmidt foi realizada uma pesquisa bibliográfica que contempla as principais referências sobre os principais métodos de custeio e modelos de tomada de decisão aplicados à possibilidade dos autores refutarem métodos de custeio e modelos de tomada de decisão aplicados à seleção de mix de produtos. O modelo ABC revelou resultados mais consistentes para definição de mix de produtos quando da expansão ou redução de capacidade produtiva, ao se considerarem os custos discricionários. / The optimal product mix selection must consider internal and external factors of a manufacturing company. The external ones are mainly products prices, industry competition, substitute and complementary products, distribution channels, industrial location, and government taxes among others. The internal factors are related mainly to the use of the industrial capacity, to raw materials and human resources supply (prices and quantities), and to joint production. The external factors cause impacts in the prices of the input and final products, while the interns influence mainly the cost of products. In short, the determination of the product mix influences directly the company competitiveness. Our research has done a bibliographical research and a comparative analysis of three important frameworks to support the product-mix optimal decision: Activity based costing (ABC), Goldratt´s Theory of Constraints and the Kee & Schmidt General Model. In specialized literature some costing methods are identified to the properly measurement of products costs, such as: direct costing, burden costing, full costing, and activity based costing (ABC). These methods differ in the way that productive factors are distributed to the products costs. This thesis shows the product mix, the use of the industrial capacity and the costing methods analyzed jointly by means of mathematical programming, aiming to simulate each method performance. The translation of different frameworks in mathematical models eliminates the possibility to refute costing methods as function of author theoretical meanings. It is shown that the ABC surpasses the two other models for presenting the biggest profit and using less resources in the productive activities, when is considered discretionary costs.
|
8 |
Institut ombudsmana v severní Evropě a jeho srovnání s institucí veřejného ochránce práv v České republice / A Comparison of the Ombudsman Institute in Northern Europe and the Public Defender of Rights in the Czech RepublicKostelecká, Karolína January 2016 (has links)
This diploma thesis creates a general model of the Ombudsman Institution in Northern Europe and draws a comparison to the Public Defender of Rights in the Czech Republic. This thesis introduces a theoretical framework of this topic including definitions for control of public administration, ombudsman, classification of ombudsmen and historical evolution of this institution in selected countries. Based on the analysis of legislation in Sweden, Finland and Denmark, the general model of the ombudsman institution in Northern Europe is created. The comparison between this general model and the Public Defender of Rights Institution brings recommendations for Czech modifications. These recommendations include anchoring ombudsman institution in the Constitution of the Czech Republic, specifying education requirements of the ombudsman in the Public Defender of Rights Act, or increasing the number of ombudsmen, thereby dividing responsibility among several people specialized in certain areas.
|
9 |
Průzkum systémové integrace v domácnostech / Home System Integration ResearchRandl, Milan January 2010 (has links)
The aim of this dissertation is to bring the complete view of the Home System Integration, including public survey based on this data. Households are generally composed of several different systems that are controlled separately and are not interconnected. The purpose of Home System Integration is to connect all electronic equipment to make household safer, more efficient and more comfortable. The public survey, forming a practical part of the thesis, brings the view of Home System Integration in the Czech Republic. It can also serve as an information source for producers, sellers, their further product development and setting sales strategies.
|
10 |
Matematické modely poptávky / Mathematical Models of DemandTrzaskaliková, Eva January 2010 (has links)
The diploma thesis deals with the analyses of demand using standard tools of engineering mathematics. Mathematical models of demand, both single and multi- factor are investigated. Elasticity of demand is applied for decision making in price policy. Problems of optimization of demand reflecting utility and budget constraints are under consideration. Constructions of demand curve and compensated demand curve are presented. The text is accompanied by illustrative examples aiming at methodical aspects of the work
|
Page generated in 0.085 seconds