Now showing items 14-33 of 98

    CHROMA model for the information-driven decision-making process 

    Parra, Xileidys (Date of defense: 2018-05-10)

    The strong, progressive interaction between decision-making processes (DMP) and information technologies has led to breakthroughs in how business is conducted. These developments represent the advent of significant trends ...

    Column-generation and interior point methods applied to the long-term electric power-planning problem 

    Pagès Bernaus, Adela (Date of defense: 2006-12-18)

    Aquesta tesi s'adreça al problema de planificació de la generació elèctrica a llarg termini per a una companyia específica (SGC) que participa en un mercat liberalitzat organitzat en un pool. Els objectius de la tesi són: ...

    Combination of vehicle routing models and dynamic traffic simulation for city logistics applications 

    Grzybwska, Hanna (Date of defense: 2012-06-08)

    The urban network is a highly dynamic system. Thus, a modern and efficient fleet management in urban areas should account for dynamics of traffic conditions, variability in travel times, changes in demand and fleet ...

    Composite endpoints in clinical trials : computational tools, practical guidelines and methodological extensions 

    Gómez-Mateu, Moisés (Date of defense: 2016-06-30)

    The conclusions from randomized clinical trials (RCT) rely on the primary endpoint (PE), which is chosen at the design stage of the study; thus, it is of utmost importance to select it appropriately. In RCT, there should ...

    Conjoint design of railway lines and frequency setting under semi-congested scenarios 

    López Ramos, Francisco (Date of defense: 2014-02-24)

    This thesis develops mathematical programming models which integrate network design (ND) and line frequency setting (LFS) phases. These appear in transport planning studies that extend an existing urban public transportation ...

    Constant effect in randomized clinical trials with quantitative outcome : a methodological review 

    Cortés Martínez, Jordi (Date of defense: 2021-05-27)

    The past decade has seen continuous growth in so-called precision medicine, due especially to great advances in the genetics. While applying it presently goes unquestioned in certain fields like oncology, it is more ...

    Contribucions a la microagregació per a la protecció de dades estadístiques 

    Torres Aragó, Àngel (Date of defense: 2003-09-08)

    Després de recollir la informació referent a les tècniques pertorbatives més rellevants de control de la revelació de microdades contínues actualment existents, l'objectiu general de la tesi és l'anàlisi i la millora ...

    Contribucions als agorismes de punt interior en mètodes iteratius per a sistemes d'equacions usant regularitzacions quadràtiques 

    Cuesta Andrea, Jordi (Date of defense: 2009-09-29)

    Els mètodes de punt interior per a programació lineal proporcionen algorismes de complexitat polinòmica, que els fa ser molt eficients en l’optimització a gran escala. Aquests algorismes utilitzen el mètode de Newton per ...

    Contributions to industrial statistics 

    Fontdecaba Rigat, Sara (Date of defense: 2015-12-23)

    This thesis is about statistics' contributions to industry. It is an article compendium comprising four articles divided in two blocks: (i) two contributions for a water supply company, and (ii) significance of the effects ...

    Contributions to the multivariate Analysis of Marine Environmental Monitoring 

    Graffelman, Jan (Date of defense: 2000-09-12)

    The thesis parts from the view that statistics starts with data, and starts by introducing the data sets studied: marine benthic species counts and chemical measurements made at a set of sites in the Norwegian Ekofisk oil ...

    Contributions to the planning and analysis of factorial designs 

    Xampeny Solaní, Rafael (Date of defense: 2018-06-20)

    The thesis is structured in five articles. In the first article, two methods are compared to analyze the significance of the effects: the Lenth method and the one based on the estimation of the variance of the effects from ...

    Cuantificación del riesgo global del asegurado para mejorar la tarificación 

    Padilla Barreto, Alemar Elaine (Date of defense: 2019-05-16)

    The first contribution of this Thesis is the creation of a new risk measure that allows to classify the clients according to the risk that they bring to the company. This measure defined from the aggregate information at ...

    Data science in HIV : statistical approaches for therapeutic HIV vaccine data 

    Alarcón Soto, Yovaninna (Date of defense: 2021-06-30)

    The present dissertation contributes to Data Science in the Human lmmunodeficiency Virus (HIV) field, addressing specific issues related to the modelling of data coming from three different clinical trials based on ...

    Decisions that make things work better: an analysis of the quality concept 

    Camps Lorente, Oriol (Date of defense: 2012-07-06)

    The present thesis is aimed at analyzing the concept of quality and at dis-cussing, in a unified manner, its role not only in operations management but also in strategic thinking. It criticizes the widespread view that ...

    Demand aggregator optimal strategies: from the bidding to the execution 

    Barbero, Mattia (Date of defense: 2023-07-17)

    (English) Europe is at the beginning of an energy revolution. The old energy paradigm where centralized power plants provide energy to passive consumers is ending. Distributed renewable energy resources and electrification ...

    A demand-responsive traffic control system for urban areas 

    Grau Mariani, Rafael (Date of defense: 1995-02-08)

    The goal of this Ph.D. Thesis is the design, development and testing of a 'well-engineered system' aimed at the demand-responsive traffic control of urban areas. Because of the author's background -software engineering-, ...

    Desarrollo de técnicas estadísticas basadas en computacion intensiva para el análisis de medidas repetidas 

    Sánchez Espigares, Josep Anton (Date of defense: 2021-04-09)

    This thesis includes contributions to statistical methodologies and practical applications in situations where data has been obtained as a result of repeated measures. The first block includes a first article where different ...

    Designing smart ITS services through innovative data analysis modeling 

    Arjona Martínez, Jamie (Date of defense: 2021-02-11)

    Nowadays, one of the most important problems in urban areas concerns traffic congestion. This, in turn, has an impact on the economy, nature, human health, city architecture, and many other facets of life. Part of the ...

    Dynamic OD matrix estimation exploiting ICT traffic measurements 

    Ros Roca, Xavier (Date of defense: 2021-10-01)

    During the last decades, urban mobility has become the main concern for city councils and transportation operators. The main problem is the traffic congestion that easily appears in urban networks, producing negative ...

    Economic evaluation in health research: cohort simultation and applications 

    Pérez Álvarez, Nuria (Date of defense: 2014-07-23)

    Currently, resources that may be spent in health care are limited so it is necessary to rationalize their consumption and prioritise their allocation to the options with higher health outcome and economic sustainability. ...