Programa de Doctorat en Tecnologies de la Informació i les Comunicacions: Recent submissions
Now showing items 321-340 of 394
Brain activity during rest : a signature of the underlying network dynammics
La actividad cerebral exhibe complejos fenómenos oscilatorios similares a los que se observan en modelos de redes artificiales con osciladores acoplados. Por un lado, estudios sobre la actividad cerebral durante el reposo ...
Building ethernet connectivity services for provider networks
Network providers are motivated to deploy Ethernet in their infrastructures. However, this represents a new application for Ethernet technology that leads to new requirements. In Ethernet networks, the Rapid Spanning Tree ...
Towards deep content extraction from specialized discourse : the case of verbal relations in patent claims
This thesis addresses the problem of the development of Natural Language Processing techniques for the extraction and generalization of compositional and functional relations from specialized written texts and, in ...
Noise-induced reversals in bistable visual perception
In this thesis, a set of some prevailing rate-based models for bistable perception have been considered in order to find the implications of the novel results reported in Pastukhov & Braun (2011). These authors have ...
Plan recognition as planning
Plan recognition is the problem of inferring the goals and plans of an agent after partially observing its behavior. This is the inverse of planning, the problem of finding the actions that need to be done in order to ...
Statistical atlases of cardiac motion and deformation for the characterization of CRT responders
The definition of optimal selection criteria for maximizing the response rate to Cardiac Resynchronization Therapy (CRT) is still an issue under active debate. Recent clinical approaches propose a classification of patients ...
Automatic musical instrument recognition from polyphonic music audio signals
En aquesta tesi presentem un mètode general per al reconeixement automàtic d’instruments musicals partint d’un senyal d’àudio. A diferència de molts enfocs relacionats, el nostre evita restriccions artificials o artificioses ...
Semantic annotation of music collections: A computational approach
El consum de la música ha canviat dràsticament en els últims anys. Amb l’arribada de la música digital, el cost de producció s’ha reduït considerablement. L’expansió de la Web ha ajudat a promoure l’exploració de molt ...
Translation-based approaches to automated planning with incomplete information and sensing
Artificial Intelligence Planning is about acting in order to achieve a desired goal. Under incomplete information, the task of finding the actions needed to achieve the goal can be modelled as a search problem in the ...
Computing-Based Testing: conceptual model, implementations and experiments extending IMS QTI.
The use of objective tests in Technology Enhanced Learning (TEL) is based on the application of computers to support automatic assessment. Current research in this domain is mainly focused on the design of new question-items, ...
Decision-making beyond “left or right”. A computational study on the neurophysiology behind multiple-choice decision-making and choice reevaluation.
Neurophysiological brain processes during perceptual decision-making have mainly been investigated under the simplified conditions of two-alternative forced-choice (2AFC) tasks. How do established principles of decision-making, ...
Recovery of cerebrovascular morphodynamics from time-resolved rotational angiography
Over the last decade, there has been a growing interest in assessing cerebral aneurysmal wall motion, because of its potential connections to the biomechanical conditions of the vessel wall, which could eventually aid the ...
Automatic Classification of musical mood by content-based analysis
In this work, we focus on automatically classifying music by mood. For this purpose, we propose computational models using information extracted from the audio signal. The foundations of such algorithms are based on ...
Color image processing problems in digital photography
In this thesis, we discuss three image processing topics: High Dynamic Range (HDR) image creation in scenes with motion, Tone Mapping (TM), and Demosaicking. The first part of this thesis focuses on the creation of HDR ...
Verification of Psychological and Neurobiological Theories of Emotions Using Virtual and Situated Agents
The investigation of the influence of emotions on human cognition and behavior challenges scientist since a long time. So far the most popular approach to investigate this phenomenon was to observe brain processes and ...
Supervised Identification of the User Intent of Web Search Queries
As the Web continues to increase both in size and complexity, Web search is a ubiquitous service that allows users to find all kind of information, resources, and activities. However, as the Web evolves so do the needs of ...
Unsupervised Identification of the User’s Query Intent in Web Search
This doctoral work focuses on identifying and understanding the intents that motivate a user to perform a search on the Web. To this end, we apply machine learning models that do not require more information than the one ...
La celebració mediàtica de la Victòria a la Rússia post-soviètica. Anàlisi transversal dels observables de l'hegemonia en la commemoració televisiva de la Victòria sobre l'Alemanya nazi
La present tesi doctoral té com a objectiu l’anàlisi de la commemoració televisiva de la Victòria sobre l’Alemanya nazi a la Rússia post-soviètica. En particular, l’anàlisi es centra en la retransmissió de la desfilada ...
SME’s participation to Free Libre Open Source Software Communities
Les motivacions entorn al programari lliure han estat sempre un tema de gran interès, sent la pregunta més obvia, "perquè les persones treballen de forma gratuïta?". Les motivacions dels desenvolupadors han estat establertes ...
Operationalization of collaborative blended learning scripts: a model, computational mechanisms and experiments
Portable and interactive technologies are changing the nature of collaborative learning practices. Learning can now occur both in and beyond the classroom and furthermore combine formal and informal activities monitored ...
