Listar Teses de doutoramento por título
Mostrando ítems 1472-1491 de 2089
-
New Bis-Piridinium Salts: Host-Guest Chemistry and Implementation into Peptide Sequences
(2023)[Abstract] This doctoral thesis describes the synthesis of new bis-pyridinium salts, intended for the development of new CB [7/8]-bipyridinium host-guest chemistry, and their subsequent implementation into peptide sequences. ... -
New Compression Codes for Text Databases
(2005)[Abstract] Text databases are growing in the last years due to the widespread use of digital libraries, document databases and mainly because of the continuous growing of the Web. Compression comes up as an ideal solution ... -
New contrast agents alternative to those based on gadolinium
(2022)[Abstract] The main objective of this doctoral thesis is the development of new systems based on transition metal ions with both high thermodynamic stability and kinetic inertness, that may be used in Magnetic Resonance ... -
New data structures and algorithms for the efficient management of large spatial datasets
(2014)[Resumen] En esta tesis estudiamos la representación eficiente de matrices multidimensionales, presentando nuevas estructuras de datos compactas para almacenar y procesar grids en distintos ámbitos de aplicación. Proponemos ... -
New Insights and Methods in Studying the Socio-economic Determinants of Migration
(2021)[Abstract] Migrant and refugee crises are built upon economic, social, cultural, humanitarian, and other disparities between origin and destination countries. Depending on how efficient they are managed, these crises ... -
New insights into inequality: measurement, determinants and other socioeconomic issues
(2019)[Resumen] El objetivo de esta tesis es la obtención de evidencia empírica que suponga un avance en el conocimiento de varios aspectos relacionados con la desigualdad en la distribución personal de la renta. El enfoque ... -
New methodological contributions in statistical learning for time series
(2023)[Abstract] Time series databases are becoming omnipresent in several fields (e.g., computer sciences, finance, biology...), which makes the development of data mining algorithms for these objects a top priority among machine ... -
New methodological contributions in time series clustering
(2017)[Abstract] This thesis presents new procedures to address the analysis cluster of time series. First of all a two-stage procedure based on comparing frequencies and magnitudes of the absolute maxima of the spectral ... -
New neuroinspired algorithms in Artificial Neuro-Astrocytic Networks
(2023)[Resumo] Nesta tese preséntanse unha serie de algoritmos complexos a partir de Redes de Neuronas Artificiais (RNA) clásicas deseñados desde unha perspectiva mulitidiciplinar que achega os campos da Intelixencia Artificial ... -
New scalable machine learning methods: beyond classification and regression
(2019)[Abstract] The recent surge in data available has spawned a new and promising age of machine learning. Success cases of machine learning are arriving at an increasing rate as some algorithms are able to leverage immense ... -
New Secure IoT Architectures, Communication Protocols and User Interaction Technologies for Home Automation, Industrial and Smart Environments
(2021)[Abstract] The Internet of Things (IoT) presents a communication network where heterogeneous physical devices such as vehicles, homes, urban infrastructures or industrial machinery are interconnected and share data. For ... -
New Technologies for Internet of Things and Augmented Reality Applications for Domotic Environments and Industry 4.0
(2022)[Abstract] In recent years, the technology related to the Internet of Things (IoT), has gained interest in several elds, from home automation to industry. IoT systems allow heterogeneous devices such as household ... -
NIFPTML: aprendizaje automático por teoría de perturbaciones con fusión de información de redes biomoleculares en química médica, cromosómica, y nanoinformática
(2022)[Resumo] A teoría das redes complexas permite estudar sistemas biomoleculares. Dado que os grafos poden representar redes, nunha rede de proteínas, por exemplo, os nodos son os aminoácidos e os eixes son as secuencias ... -
Nitrocarburación mediante el proceso TENIFER QDQ de aceros inoxidables austeníticos estabilizados : caracterización química y estudio de su comportamiento frente al desgaste y la corrosión
(2015)[Resumen]La nitrocarburación en baño de sales se utiliza para mejorar las propiedades tribológicas de los aceros inoxidables. Sin embargo, la aparición de carburos y nitruros de elementos de aleación en la capa externa ... -
Niveles y evolución de las partículas ultrafinas del aerosol atmosférico en un entorno suburbano con influencia atlántica
(2019)[Resumen] En estudios recientes se ha observado que las partículas ultrafinas (UFP) son las mayoritarias en el aerosol atmosférico en número de partícula por volumen de aire muestreado. Sin embargo, actualmente no existe ... -
Nonisothermal hydrobiogeochemical models in porous media
(2001)[Resumen] En esta tesis se presenta una formulacion matematica y numerica para el flujo de agua, el transporte de calor y de solutos considerando de forma general el papel acoplado de los procesos geoquimicos y ... -
Nonparametric Density and Regression Estimation for Samples of Very Large Size
(2021)[Abstract] This dissertation mainly deals with the problem of bandwidth selection in the context of nonparametric density and regression estimation for samples of very large size. Some bandwidth selection methods have ... -
Nonparametric estimation of the probability of default in credit risk.
(2022)[Abstract] Financial institutions are interested in knowing the probability that their clients declare themselves unable to pay the debts incurred by granting a credit. The aim of this work is to propose models to estimate ... -
Nonparametric Inference for Big-But-Biased Data
(2021)[Abstract] It is often believed that in a Big Data context, given the large amount of data available, the data re ect precisely the underlying population. However, the data are often strongly biased due to the procedure ... -
Nonparametric inference for neural synchrony under low firing activity
(2013)[Abstract] The aim of this thesis is to introduce statistical tools to study neural synchrony under spontaneous activity. The data analyzed comes from extracellular recordings of the primary visual cortex of anesthetized ...