Exploració per tema "Classificació AMS::62 Statistics::62P Applications"
Ara es mostren els items 1-20 de 345
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A Bayesian implementation for predicting and understanding customers’ purchase behavior
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2020-10)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autorIn this project, we implement several Bayesian models of Customer Base Analysis and test them on a real dataset of customer transactions from a wholesales company. Our goal is to predict the amount of purchases that customers ... -
A Bayesian stochastic SIRS model with a vaccination strategy for the analysis of respiratory syncytial virus
(Institut d'Estadística de Catalunya, 2017-06-21)
Article
Accés obertOur objective in this paper is to model the dynamics of respiratory syncytial virus in the region of Valencia (Spain) and analyse the effect of vaccination strategies from a health-economic point of view. Compartmental ... -
A bivariate response model for studying the marks obtained in two jointly-dependent modules in higher education
(Institut d'Estadística de Catalunya, 2017-12-19)
Article
Accés obertWe study the factors which may affect students’ marks in two modules, mathematics and statistics, taught consecutively in the first year of a Business Administration Studies degree course. For this purpose, we introduce a ... -
A combined and robust modal-split/traffic assignment model for rail and road freight transport
(2022-12-01)
Article
Accés obertSearching for achieving an ambitious reduction in greenhouse gas emissions, the EU has set as a goal a modal shift in freight transport of 30% by rail for the near future. In this context, it is vital to use modal choice ... -
A comparison between Quantile Regression and Quantile Regression Forest for CoVaR estimation: the Spanish case
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2020-06)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autorThe present work is focused on the estimation of CoVaR, a measure used to quantify the effects of a financial institution or the financial system in distress, on the VaR of another financial institution. In the first part, ... -
A comparison of parametric models for mortality graduation. Application to mortality data of the Valencia Region (Spain)
(Institut d'Estadística de Catalunya, 2005)
Article
Accés obertHolaThe parametric graduation of mortality data has as its objective the satisfactory estimation of the death rates based on mortality data but using an age-dependent function whose parameters are adjusted from the crude ... -
A Compositional approach for modelling SDG7 indicators
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2018-01)
Projecte Final de Màster Oficial
Accés obertAl igual que en otros sectores, los indicadores de seguimiento del sector de la energía tienen, en muchos casos, carácter composicional, característica clave para la correcta modelación de tendencias y proyecciones, ver ... -
A contingency table approach based on nearest neighbour relations for testing self and mixed correspondence
(Institut d'Estadística de Catalunya, 2018-12-21)
Article
Accés obertNearest neighbour methods are employed for drawing inferences about spatial patterns of points from two or more classes. We introduce a new pattern called correspondence which is motivated by (spatial) niche/habitat ... -
A Customer purchasing pattern model: Implementation and checking
(Universitat Politècnica de Catalunya, 2017-01)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autorEl present PFM intenta millorar un sistema de seguiment de clients que està desenvolupant la empresa Datancia. L'objectiu és intentar afegir a aquest sistema el seguiment de la freqüència de visites dels clients com a ... -
A Decomposition-Ensemble framework for oil price forecasting during Covid19 outbreak: enabling rapid response in IOCs and NOCs
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2021-10)
Projecte Final de Màster Oficial
Accés obertOne of main economic impacts of Covid19 was the unprecedented drop in crude futures prices. After the crash, a high-volatility period followed, adding more uncertainty to the markets and financial institutions worldwide. ... -
A genetic association study of colon cancer
(Universitat Politècnica de Catalunya, 2014-07)
Treball Final de Grau
Accés obertThe project of this bachelor degree concerns the statistical analysis of a genetic database provided by Professor Victor Moreno, epidemiologist of the Hospital de Bellvitge in Barcelona. The goal is to investigate associations ... -
A meta-analysis estimating initial-final correlation in randomized clinical trials (RCTs) and a simulation study evaluating the performance of statistical methods in RCTs with repeated measures
(Universitat Politècnica de Catalunya, 2015-10)
Projecte Final de Màster Oficial
Accés obertThis master thesis is split into two separate main parts. Part I is a meta-analysis of randomized clinical trials (RCTs) and Part II is a simulation study. First, a meta-analysis was performed through a literature search ... -
A method for the determination of the standard deviation of ground errors of a Ground Based Augmentation System (GBAS)
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2014-10)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autorIn this project, the study of a methodology for the computation of a reliable estimation sigma_pr_gnd is study. The method presented is intended to be used for the calibration of the GBAS station, using only one day of ... -
A posteriori disclosure risk measure for tabular data based on conditional entropy
(Institut d'Estadística de Catalunya, 2003)
Article
Accés obertStatistical database protection, also known as Statistical Disclosure Control (SDC), is a part of information security which tries to prevent published statistical information (tables, individual records)from disclosing ... -
A prediction model for maritime freight container rates
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2016-06)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autor
Realitzat a/amb: iContainers SolutionsiContainers is an on-line maritime freight forwarder firm that offers real time prices on its website for container freight transportation services. This business model has allowed to keep a record of historical rates, ... -
A quadtree approach based on European geographic grids: reconciling data privacy and accuracy
(Institut d'Estadística de Catalunya, 2017-06-21)
Article
Accés obertMethods to preserve confidentiality when publishing geographic information conflict with the need to publish accurate data. The goal of this paper is to create a European geographic grid frame- work to disseminate statistical ... -
A quantitative study of the rate of change in Spanish employment
(Universitat Politècnica de Barcelona. Centre de Càlcul, 1984-06)
Article
Accés obertIn this paper the homogeneous information available for the Spanish economy on employment, productivity and wages is processed by means of annual single equation models. The aim in this exercise is to fix ideas about the ... -
A sensitivity analysis for causal parameters in structural proportional hazards models
(Institut d'Estadística de Catalunya, 2003)
Article
Accés obertDeviations from assigned treatment occur often in clinical trials. In such a setting, the traditional intent-to-treat analysis does not measure biological efficacy but rather programmatic effectiveness. For all-or-nothing ... -
Adherence measures based on clustering of medication intake patterns
(Universitat Politècnica de Catalunya / Universitat de Barcelona, 2020-10)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autor
Realitzat a/amb: IDIAPJGolL'adherència al tractament és una mesura àmpliament utilitzada en farmacoepidemiologia, una estimacióprecisad aquestaésunanecessitatessencialperalaseguretatdelpacient,aixícomper a l estalvi de costos d assistència sanitària. ... -
Alcohol as a trigger of migraine attacks in people with migraine: results from a large prospective cohort study in English-speaking countries
(2022-11-27)
Article
Accés obertObjective: To assess whether alcohol intake is associated with the onset of migraine attacks up to 2 days after consumption in individuals with episodic migraine (EM).Background: Although alcohol has long been suspected ...