Now showing items 40606-40625 of 41845

    Unstructured P2P social search query routing algorithms for agentified social networks 

    Trias Mansilla, Albert (Date of defense: 2013-07-19)

    The village paradigm presents some benefits compared with the library paradigm; people can adapt the answer content as a function of who is requesting the information, or furthermore, people can perform clarifications of ...

    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 Band Selection and Segmentation in Hyper/Multispectral Images 

    Martínez Usó, Adolfo (Date of defense: 2008-09-18)

    The title of the thesis focuses the attention on hyperspectral image segmentation, that is, we want to detect salient regions in a hyperspectral image and isolate them as accurate as possible. This purpose presents two ...

    Unsupervised entity linking using graph-based semantic similarity 

    Naderi, Ali M. (Date of defense: 2016-02-10)

    Nowadays, the human textual data constitutes a great proportion of the shared information resources such as World Wide Web (WWW). Social networks, news and learning resources as well as Knowledge Bases (KBs) are just the ...

    Unsupervised Identification of the User’s Query Intent in Web Search 

    Calderón-Benavides, Liliana (Date of defense: 2011-09-27)

    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 ...

    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 ...

    Unsupervised learning for parametric optimization in wireless networks 

    Nikbakht Silab, Rasoul (Date of defense: 2021-03-17)

    This thesis studies parametric optimization in cellular and cell-free networks, exploring data-based and expert-based paradigms. Power allocation and power control, which adjust the transmit power to meet different fairness ...

    Unsupervised learning of relation detection patterns 

    Gonzàlez Pellicer, Edgar (Date of defense: 2012-06-01)

    L'extracció d'informació és l'àrea del processament de llenguatge natural l'objectiu de la qual és l'obtenir dades estructurades a partir de la informació rellevant continguda en fragments textuals. L'extracció d'informació ...

    Untangling chromatin: investigating the role of transcription, supercoiling and topoisomerases in genome organization 

    Martín de Dios, Laura (Date of defense: 2024-05-06)

    La organización del genoma en células mamíferas sigue siendo en gran parte desconocida. Un nivel fundamental de organización se considera el bucle de cromatina, que consiste en una región de ADN atrapada en el interior ...

    Unveiling Nanomedicine Using Correlative Super-Resolution and Electron Microscopy 

    Andrian, Teodora (Date of defense: 2022-06-30)

    Els tractaments actuals contra el càncer més enllà de la cirurgia inclouen teràpies que tenen un èxit limitat. Això és degut a efectes secundaris greus, que condueixen a una qualitat de vida reduïda i una baixa efectivitat. ...

    Unveiling new molecular Opisthokonta diversity : A perspective from evolutionary genomics 

    López Escardó, David (Date of defense: 2018-01-15)

    Opisthokonta is an eukaryotic supergroup that contains Metazoa, Fungi and their unicellular relatives. Therefore, this group provides an ideal framework to study distinct unicellular-multicellular transitions, among them, ...

    Unveiling novel components of the protein complex responsible for cGMP synthesis in retinal photoreceptors: role in cell physiology and disease 

    López Begines, Santiago (Date of defense: 2016-11-18)

    In photoreceptor cells of the retina, light triggers a protein G-mediated enzymatic cascade that leads to hydrolysis of cGMP. The drop in cGMP levels causes the closure of cGMP-channel at the plasma membrane, decreasing ...

    Unveiling novel functions of the trascriptional repressor HDAC7 in B lymphocyte development 

    Azagra Rodríguez, Alba (Date of defense: 2019-11-29)

    B lymphopoiesis is the result of several cell lineage choices and differentiation steps whose perturbation leads to B cell malignancies. Cellular transitions for B cell generation have been associated with gene activation ...

    Unveiling Protein-Substrate Interactions and Conformations that Influence Catalysis in Carbohydrate-Active Enzymes 

    Raich Armendáriz, Lluís Adrià (Date of defense: 2018-06-14)

    Enzymes have attracted the attention of chemists and biologists since long ago due to their molecular complexity and tremendous efficiency. They are highly specific catalysts that make chemical reactions possible at mild ...

    Unveiling the biological role of stigmasterol biosynthesis in tomato plants 

    Gutiérrez García, Laura (Date of defense: 2019-10-31)

    In plants, the sterol biosynthetic pathway leads to the production of a complex mixture of end-products, among which β-sitosterol, stigmasterol, campesterol, and cholesterol are the most abundant ones. Stigmasterol, the ...

    Unveiling the Catalyzing Power of Emotional Intelligence over General Intelligence and Learning Performance 

    Trüninger Albuquerque, Margarida (Date of defense: 2016-02-05)

    La present tesi investiga el paper catalitzador de la intel·ligència emocional (IE) comportamental, sobre la relació entre la intel·ligència general, o g, i l'acompliment en la aprenentatge. La tesi comprèn tres articles ...

    Unveiling the molecular and behavioral properties of hindbrain rhombomere centers 

    Belmonte Mateos, Carla (Date of defense: 2022-02-03)

    Precise regulation of neurogenesis is achieved by differentially allocating the neurogenic competence along the tissue. In the hindbrain proneural gene expression is stereotypically confined in segment boundary-adjacent ...

    Unveiling the multifaceted antimicrobial mechanism of action of human host defence RNases 

    Arranz Trullén, Javier (Date of defense: 2016-12-02)

    La presente tesis doctoral se encuentra integrada dentro del estudio a gran escala de la estructura-función de las ribonucleasas antimicrobianas humanas. Estas proteínas catiónicas y de bajo peso molecular son secretadas ...

    Unveiling the Potential: Exploring Gelation Mechanisms in Alginate Beads Crosslinked with Calcium, Copper and Zinc and their Versatile Applications in Agriculture and Biomedicine 

    Reig Vañó, Belén (Date of defense: 2023-10-23)

    La tecnologia d'encapsulació ofereix protecció, estabilitat i una alliberació controlada dels compostos encapsulats. L'alginate és un polisacàrid natural que s'ha aplicat de manera freqüent com a material encapsulant. No ...

    Unveiling the role of DXS-Interacting (DXI) proteins in the regulation of plastidial isoprenoid biosynthesis 

    Llamas Pámanes, Ernesto (Date of defense: 2017-09-15)

    Chloroplasts provide plants with metabolic pathways that are unique among eu- karoytes, including the methylerythritol 4-phosphate pathway (MEP) for the pro- duction of isoprenoids essential for photosynthesis and plant ...