Programa de Doctorat en Tecnologies de la Informació i les Comunicacions: Envíos recientes
Mostrando ítems 301-320 de 394
Neurodynamical theory of decision confidence
Decision confidence offers a window on introspection and onto the evaluation mechanisms associated with decision-making. Nonetheless we do not have yet a thorough understanding of its neurophysiological and computational ...
Computational analysis of expressivity in classical guitar performances
L’estudi de l’expressivitat musical és un camp molt actiu en la computació musical. El seu interès ve donat per diverses motivacions: entendre i modelitzar l’expressivitat musical; identificar els recursos expressius que ...
Statistical distribution of common audio features : encounters in a heavy-tailed universe
In the last few years some Music Information Retrieval (MIR) researchers have spotted important drawbacks in applying standard successful-in-monophonic algorithms to polyphonic music classification and similarity assessment. ...
Variational methods for exemplar-based image inpainting and gradient-domain video editing
In this thesis we tackle two problems which deal with filling-in the information in a region of an image or a video, where the data is either missing or has to be replaced. These problems have applications in the context ...
Comparative evaluation and combination of automatic rhythm description systems
The automatic analysis of musical rhythm from audio, and more specifically tempo and beat tracking, is one of the fundamental open research problems in Music Information Retrieval (MIR) research. Automatic beat tracking ...
Modelling tonal context dynamics by temporal multi-scale analysis
This work explores the multidimensional, ambiguous and temporal characteristics of tonality. The approach relies on interfacing pitch-spaces with time vs. time-scale descriptions. In this combined representation, the spatial ...
Non-stationary sinusoidal analysis
Muchos tipos de señales que encontramos a diario pertenecen a la categoría de sinusoides no estacionarias. Una gran parte de esas señales son sonidos que presentan una gran variedad de características: acústicos/electrónicos, ...
Audio source separation for music in low-latency and high-latency scenarios
Aquesta tesi proposa mètodes per tractar les limitacions de les tècniques existents de separació de fonts musicals en condicions de baixa i alta latència. En primer lloc, ens centrem en els mètodes amb un baix cost ...
Melody extraction from polyphonic music signals
Music was the first mass-market industry to be completely restructured by digital technology, and today we can have access to thousands of tracks stored locally on our smartphone and millions of tracks through cloud-based ...
From music similarity to music recommendation : computational approaches based on audio features and metadata
Aquest treball es centra en el modelatge d'usuari per la recomanació musical i desenvolupa algoritmes per la comprensió automàtica i visualització de preferències musicals. Primer, es proposa un model d'usuari construït a ...
Exploring interactions between music and language during the early development of music cognition. A computational modelling approach.
This dissertation concerns the computational modelling of early life development of music perception and cognition. Experimental psychology and neuroscience show results that suggest that the development of musical ...
Structure and inference in classical planning
Classical planning is the problem of finding a sequence of actions for achieving a goal from an initial state assuming that actions have deterministic effects. The most effective approach for finding such plans is based ...
3D audio technologies : applications to sound capture, post-production and listener perception
La llegada del sonido 3D está imponiendo cambios en varias etapas del flujo de trabajo, desde los sistemas de captación hasta las metodologías de postproducción y las configuraciones de altavoces. Esta tesis trata varios ...
Some problems on temporally consistent video editing and object recognition
Video editing and object recognition are two significant fields in computer vi- sion: the first has remarkably assisted digital production and post-production tasks of a digital video footage; the second is considered ...
Modelling neuronal mechanisms of the processing of tones and phonemes in the higher auditory system
S'ha investigat molt tant els mecanismes neuronals bàsics de l'audició com l'organització psicològica de la percepció de la parla. Tanmateix, en ambdós temes n'hi ha una relativa escassetat en quant a modelització. Aquí ...
Endovascular coiling and its influence on intra-aneurysmal hemodynamics by image-based modeling
Nowadays, most popular therapies for cerebral aneurysms are clipping and coiling. Nonetheless, it is not easy to elucidate which therapeutic option is the most suitable and reliable for a patient-specific aneurysm. To face ...
3D reconstruction of the proximal femur and lumbar vertebrae from dual-energy x-ray absorptiometry for osteoporotic risk assessment
In this thesis a method was developed to reconstruct both the 3D shape and the BMD distribution of bone structures from Dual-energy X-ray Absorptiometry (DXA) images. The method incorporates a statistical model built from ...
The Hippocampus code : a computational study of the structure and function of the hippocampus
Actualment, no hi ha consens científic respecte a la informació representada en la activitat de les célules del hipocamp. D'una banda, experiments amb humans sostenen una visión de la funció de l'hipocamp com a un sistema ...
The Encoding and decoding of complex visual stimuli : a neural model to optimize and read out a temporal population code
The mammalian visual system has a remarkable capacity of processing a large amount of information within milliseconds under widely varying conditions into invariant representations. Recently a model of the primary visual ...
Geometric modeling and characterization of the circle of willis
Los derrames cerebrales son una de las causas principales de morbilidad y mortalidad en los países desarrollados. Esto ha motivado una búsqueda de configuraciones del sistema vascular que se cree que están asociadas con ...
