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Proposal and validation of methodologies for the categorisation of continuous variables in the development of prediction models
(2015-10-20)
Prediction models are currently relevant in a number of fieelds such as physics, meteorology, finance or medicine, among others. In the medical field, prediction models are gaining importance as a support for decision-making ...
Frame presentations: variants of the reals, rings of functions, their Dedekind completions, and the unit circle
(2015-10-16)
Esta tesis se enmarca en el contexto de la topología sin puntos y explota el hecho de que se puedendefinir frames por medio de presentaciones de generadores y relaciones, dado que la categoría de frames,que es precisamente ...
Crank-Nicholson method for rate equations in powder random lasers
(IOP Publishing, 2015)
In this work, we show the resolution of the rate equations in powder random lasers by using the Crank-Nicholson finite difference method. Light propagation in our powders is described by the model of light diffusion. The ...
Mechanisms of Toxicity of Ag Nanoparticles in Comparison to Bulk and Ionic Ag on Mussel Hemocytes and Gill Cells
(Public Library Science, 2015-06-10)
Silver nanoparticles (Ag NPs) are increasingly used in many products and are expected to end up in the aquatic environment. Mussels have been proposed as marine model species to evaluate NP toxicity in vitro. The objective ...
Closed G2 forms and special metrics
(2015-07-10)
En esta tesis se aborda el estudio y construcción de variedades G2 calibradas. Una tal variedad es una variedad de Riemann, de dimensión 7, con una métrica de Riemann definida por una cierta 3-forma diferencial, denominada ...
Undirected cyclic graph based multiclass pair-wise classifier: Classifier number reduction maintaining accuracy
(Elsevier, 2015-08-13)
Supervised Classification approaches try to classify correctly the new unlabelled examples based on a set of well-labelled samples. Nevertheless, some classification methods were formulated for binary classification problems ...
Performance Study of Layered Division Multiplexing Based on SDR Platform
(IEEE, 2015-06-05)
[EN] Two of the main drawbacks of the current broadcasting services are, on the one hand, the lack of flexibility to adapt to the new generation systems requirements, and on the other hand, the incapability of taking a ...
Planning Large Single Frequency Networks for DVB-T2
(IEEE, 2015-09)
[EN] The final coverage and associated performance of an SFN is a joint result of the properties of all transmitters in the SFN. Due to the large number of parameters involved in the process, finding the right configuration ...
Reputation features for trust prediction in social networks
(Elsevier, 2015-05-08)
Trust prediction in Social Networks is required to solve the cold start problem, which consists of guessing a Trust value when the truster has no direct previous experience on the trustee. Trust prediction can be achieved ...
Experiments of Trust Prediction in Social Networks by Artificial Neural Networks
(Taylor and Francis, 2015-03-24)
Social network online services are growing at an exponential pace, both in quantity of users and diversity of services; thus, the evaluation of trust in the interaction among users and toward the system is a central issue ...