Now showing items 87-101 of 101
Sobradelo Pérez, Rosa Maria (Date of defense: 2011-07-21)
Disasters are large intractable problems that test the ability of communities and nations to effectively protect their populations and infrastructure, to reduce both human and property loss, and to rapidly recover. The ...
Serrat i Piè, Carles (Date of defense: 2001-05-21)
En aquest treball tractem tres metodologies diferents -no paramètrica, paramètrica i semiparamètrica- per tal de considerar els patrons de dades amb valors no observats en un context d'anàlisi de la supervivència. Les dues ...
Oller Piqué, Ramon (Date of defense: 2006-06-30)
L'anàlisi de la supervivència s'utilitza en diversos àmbits per tal d'analitzar dades que mesuren el temps transcorregut entre dos successos. També s'anomena anàlisi de la història dels esdeveniments, anàlisi de temps de ...
López Segovia, Lucas (Date of defense: 2014-06-10)
The research developed in this thesis has been motivated by two datasets, which are introduced in Chapter 2, one concerning the mortality of calves from birth to weaning while the other refers to survival of patients ...
Calle, M. Luz (Date of defense: 1997-02-27)
This work concerns some problems in the area of survival analysis that arise in real clinical or epidemiological studies. In particular, we approach the problem of estimating the survival function based on interval-censored ...
Ruiz y Ruiz, Héctor Efraín (Date of defense: 2013-07-15)
In this thesis we focus on the Capacitated Minimum Spanning Tree (CMST), an extension of the minimum spanning tree (MST) which considers a central or root vertex which receives and sends commodities (information, goods, ...
Cortez Ordóñez, Alexandra Piedad (Date of defense: 2023-11-23)
(English) Nowadays, Bicycle Sharing Systems (BSS) have become a popular and widespread transportation system across the world thanks to their multiple environmental and health benefits, and its successful support for urban ...
Nasrazadani, Hajar (Date of defense: 2016-03-01)
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 ...
Barahona Torres, Igor (Date of defense: 2013-07-26)
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 ...
Rebillas Loredo, Victoria (Date of defense: 2018-12-19)
In real-world logistic operations there are a lot of situations that can be exploited to get better operational strategies. It is important to study these new alternatives, because they can represent significant cost ...
Luna Mota, Carlos (Date of defense: 2016-02-01)
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 ...
Barroso del Toro, Alberto (Date of defense: 2023-07-06)
(English) This thesis provides empirical evidence, with an unprecedented sample size, that sustainability news moves the stock market, particularly positive news related to fossil fuels. The findings confirm that there is ...
Font i Furnols, Maria (Date of defense: 2000-06-20)
L'olor sexual és un defecte sensorial que es dóna sobretot en la carn de porcs mascles enters i és deguda principalment a dues substàncies, l'androstenona i l'escatol. Els objectius principals d'aquest estudi són conèixer ...
Escalante Euán, Jesús Francisco (Date of defense: 2019-11-20)
Risk management is a structured approach that incorporates uncertainty related to a threat, linked to a sequence of inherently human activities that include risk assessment, as well as other strategies for its mitigation. ...
Duarte-López, Ariel (Date of defense: 2021-02-05)
The Zipf distribution, also known as discrete Pareto distribution, attracts considerable attention because it helps describe skewed data from many natural as well as man-made systems. Under the Zipf distribution, the ...