Now showing items 335-346 of 346

    Ultrashort laser pulse measurement for multiphoton microscopy 

    Amat Roldan, Ivan (Date of defense: 2013-06-21)

    In this thesis, we address specific efforts towards developing the precise aspect of ultrashort laser pulse measurement in the context of biomedical research. The motivation for pursuing these new developments was triggered ...

    Una contribución a la investigación de la espectroscopia Raman en el análisis de pigmentos : resultados teóricos y experimentales 

    Ferrer Espinilla, Perla (Date of defense: 2014-10-31)

    Esta Tesis se ha enmarcado en un proyecto financiado por la CICYT gracias al cual se adquirió un equipo portátil de espectroscopia Raman con fibra óptica. Esto determinó el objetivo inicial de esta investigación, que ...

    Unsupervised and attention approaches for deep learning speaker recognition 

    Safari, Pooyan (Date of defense: 2023-05-19)

    (English) The thesis presents various contributions to the field of speaker recognition. In the first part of the thesis, the focus is on unsupervised methods for speaker recognition. This includes a method that uses Deep ...

    Unsupervised learning for expressive speech synthesis 

    Jauk, Igor (Date of defense: 2017-09-12)

    Nowadays, especially with the upswing of neural networks, speech synthesis is almost totally data driven. The goal of this thesis is to provide methods for automatic and unsupervised learning from data for expressive speech ...

    Upgrade paths from existing copper-based access solutions to advanced a gile wavelength-routed passive optical networks 

    Bock Montero, Carlos (Date of defense: 2006-02-28)

    Aquesta tesi presenta un pla de millores des de les xarxes d'accés existents basades en coure a xarxes de fibra òptica fins la llar de segona generació basades en xarxes òptiques passives per enrutament de longitud ...

    Virtual network provisioning over flexible optical transport infrastructure 

    Pagès Cruz, Albert (Date of defense: 2014-12-16)

    Current transport network owners are focused on offering services on top of the infrastructures they own, while end users have no control over them. Traditionally, this has been their business model, as the cost of building ...

    Visual object analysis using regions and local features 

    Ventura Royo, Carles (Date of defense: 2016-07-08)

    The first part of this dissertation focuses on an analysis of the spatial context in semantic image segmentation. First, we review how spatial context has been tackled in the literature by local features and spatial ...

    Voice source characterization for prosodic and spectral manipulation 

    Pérez Mayos, Javier (Date of defense: 2012-07-03)

    The objective of this dissertation is to study and develop techniques to decompose the speech signal into its two main components: voice source and vocal tract. Our main efforts are on the glottal pulse analysis and ...

    WDM/TDM PON bidirectional networks single-fiber/wavelength RSOA-based ONUs layer 1/2 optimization 

    López Pastor, Eduardo Tommy (Date of defense: 2013-09-12)

    This Thesis proposes the design and the optimization of a hybrid WDM/TDM PON at the L1 (PHY) and L2 (MAC) layers, in terms of minimum deployment cost and enhanced performance for Greenfield NGPON. The particular case of ...

    Wideband cognitive radio: monitoring, detection and sparse noise subspace communication 

    Font Segura, Josep (Date of defense: 2014-07-24)

    We are surrounded by electronic devices that take advantage of wireless technologies, from our computer mice, which require little amounts of information, to our cellphones, which demand increasingly higher data rates. ...

    Wireless sensors embedded in high permittivity lossy media 

    González López, Giselle (Date of defense: 2021-06-29)

    The design of wireless sensors for operation embedded in a medium with high losses creates a series of additional constraints that should be taken into consideration at design stage to enhance sensor performance. In such ...

    Zero-touch service orchestration in 5G and beyond mobile networks 

    Dalgkitsis, Anestis (Date of defense: 2023-11-07)

    (English) The expeditious growth and development of Beyond-5G and 6G networks inaugurated a new sector in the research of cellular networking. Automation and scaling are now considered a necessity to cope with the anticipated ...