Àrea de contingut
Universitat Politècnica de Catalunya
Listando Programa de Doctorat en Estadística i Investigació Operativa por Fecha de defensa
Mostrando ítems 1-20 de 56
Decisions that make things work better: an analysis of the quality concept
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 ...
The level of adoption of analytical tools
This PhD thesis is focused on disclosing features that might cause the increase in the use of analytical tools for better decision making. The theoretical part of this research is developed in two phases. At first, an ...
Conjoint design of railway lines and frequency setting under semi-congested scenarios
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 ...
A mesoscopic traffic simulation based dynamic traffic assignment
In terms of sustainability, traffic is currently a significant challenge for urban areas, where the pollution, congestion and accidents are negative externalities which have strongly impacted the health and economy of ...
Economic evaluation in health research: cohort simultation and applications
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. ...
Análisis conjunto de múltiples tablas de datos mixtos mediante PLS
The fundamental content of this thesis corresponds to the development of the GNM-NIPALIS, GNM-PLS2 and GNM-RGCCA methods, used to quantify qualitative variables parting from the first k components given by the appropriate ...
Mathematical programming based approaches for classes of complex network problems : economical and sociological applications
The thesis deals with the theoretical and practical study of mathematical programming methodologies to the analysis complex networks and their application in economic and social problems. More specifically, it applies ...
Modelling with heterogeneity
When collecting survey data for a specific study it is usual to have some background information, in the form for example, of socio-demographic variables. In our context, these variables may be useful in identifying potential ...
A principal component method to analyse disconnected frequency tables by means of contextual information
This thesis arises from the need to deal with open-ended questions answered in different languages in international surveys. For every language, the free answers are encoded in the form of a individuals x words lexical ...
Medium-term power planning in electricity markets with renewable generation sources
The problem addressed in this thesis is the medium-term generation planning over a yearly horizon of a generation company participating in a liberalized electricity market with pool auction of generation and consumption ...
Improving urban deliveries via collaboration
Distribution of goods is essential for the economic development of cities but at the same time it entails several problems to the urban systems and different stakeholders. Carriers spend a significant portion of their cost ...
Contributions to industrial statistics
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 ...
Bayesian analysis of textual data
En esta tesis se desarrolla, siempre con el enfoque bayesiano en mente, una metodología estadística para el análisis de datos discretos en su aplicación en problemas estilometría. El análisis estadístico del estilo literario ...
The Optimum Communication Spanning Tree Problem : properties, models and algorithms
For a given cost matrix and a given communication requirement matrix, the OCSTP is defined as finding a spanning tree that minimizes the operational cost of the network. OCST can be used to design of more efficient ...
Scheduling policies for multi-period services
In many situations, the resources in organizations are employed to satisfy some demand (or services) requirements, which are repeated with some periodicity. These recurrent services appear in a large variety of processes ...
The impact of effective factors on the Iranian electricity market in comparison to the Spanish electricity market
Electricity market analysis is important to access strategic market information which can be further employed to pass energy policies. Due to the advantages of privatization, the Iranian government has taken certain ...
Composite endpoints in clinical trials : computational tools, practical guidelines and methodological extensions
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 ...
Análisis estadístico de corpus cronológicos : aplicación al estudio de bases bibliográficas y textos retóricos
Due to the huge amount of textual data that is persintently generated, researchers are obliged to classify and analize them, even though there are different ways as well as computing tools to facilitate their study. In ...
Exact and heuristic methods for statistical tabular data protection
One of the main purposes of National Statistical Agencies (NSAs) is to provide citizens or researchers with a large amount of trustful and high quality statistical information. NSAs must guarantee that no confidential ...
Policentrisme i eficiència territorial : avenços teòrics i empírics
The overarching research goal of this dissertation is to make theoretical and empirical contributions on the link between the polycentric spatial organization of agglomeration in metropolitan areas and its economic, social ...
