Now showing items 45-64 of 83

    Joint parsing of syntactic and semantic dependencies 

    Lluís, Xavier (Date of defense: 2015-07-13)

    Syntactic Dependency Parsing and Semantic Role Labeling (SRL) are two main problems in Natural Language Understanding. Both tasks are closely related and can be regarded as parsing on top of a given sequence. In the ...

    Knowledge-based and data-driven approaches for geographical information access 

    Ferrés Domènech, Daniel (Date of defense: 2017-11-29)

    Geographical Information Access (GeoIA) can be defined as a way of retrieving information from textual collections that includes the automatic analysis and interpretation of the geographical constraints and terms present ...

    Language: universals, principles and origins 

    Ferrer i Cancho, Ramon (Date of defense: 2003-12-12)

    Here, old and new linguistic universals, i.e. properties obeyed by all languages on Earth are investigated. Basic principles of language predicting linguistic universals are also investigated. More precisely, two principles ...

    Learning latent variable models : efficient algorithms and applications 

    Ruffini, Matteo (Date of defense: 2019-02-14)

    Learning latent variable models is a fundamental machine learning problem, and the models belonging to this class - which include topic models, hidden Markov models, mixture models and many others - have a variety of ...

    Light methods for conformance checking of business processes 

    Taymouri, Farbod (Date of defense: 2018-12-21)

    Conformance Checking is a new research discipline devoted to identify deviations between business process models and their real executions. Identifying deviations boils down to the notion of alignment conceptually. An ...

    Link prediction in large directed graphs 

    Garcia Gasulla, Dario (Date of defense: 2015-04-23)

    The first chapter introduces an approach to machine learning (ML) were data is understood as a network of connected entities. This strategy seeks inter-entity information for knowledge discovery, in contrast with traditional ...

    Logic decomposition and adaptive clocking for the optimization of digital circuits 

    Machado, Lucas (Date of defense: 2019-02-21)

    Over the course of 60 years, since the invention of the integrated circuit (IC), exponential improvements in cost, performance and power consumption were observed. Such advances have been strongly linked with the continuous ...

    Low-rank regularization for high-dimensional sparse conjunctive feature spaces in information extraction 

    Primadhanty, Audi (Date of defense: 2017-11-17)

    One of the challenges in Natural Language Processing (NLP) is the unstructured nature of texts, in which useful information is not easily identifiable. Information Extraction (IE) aims to alleviate it by enabling automatic ...

    A methodology for pre-post intervention studies : an application for a nutritional case study 

    Sevilla Villanueva, Beatriz (Date of defense: 2016-02-09)

    Nowadays, it is widely accepted that many of modern lifestyle habits such as diet and exercise, together with genetics, play an important role in the development of many diseases such as cardiovascular disease, diabetes, ...

    Monitoring the quality of service to support the service based system lifecycle 

    Oriol Hilari, Marc (Date of defense: 2015-03-19)

    Service Oriented Computing (SOC) has been established in the last recent years as a successful paradigm in Software Engineering. The systems built under this paradigm, known as Service Based System (SBS), are composed of ...

    Multivariate methods for interpretable analysis of magnetic resonance spectroscopy data in brain tumour diagnosis 

    Vilamala Muñoz, Albert (Date of defense: 2015-12-18)

    Malignant tumours of the brain represent one of the most difficult to treat types of cancer due to the sensitive organ they affect. Clinical management of the pathology becomes even more intricate as the tumour mass increases ...

    Network creation games: structure vs anarchy 

    Messegué Buisan, Arnau (Date of defense: 2020-12-18)

    In an attempt to understand how Internet-like network and social networks behave, different models have been proposed and studied throughout history to capture their most essential aspects and properties. Network Creation ...

    New data integration methods for drug re-purposing by mining heterogeneous omics data 

    Zambrana Seguí, Maria del Carme (Date of defense: 2023-11-21)

    (English) High-throughput omics technologies produce large-scale heterogeneous data that provide complementary views of the underlying complexity of the studied organism. To exploit these new data to answer biomedical ...

    NoMoDEI : A framework for Norm Monitoring on Dynamic Electronic Institutions 

    Gómez Sebastià, Ignasi (Date of defense: 2016-01-27)

    With the growth of the Internet, computational systems have become more and more complex, often including complicate interconnected networks of autonomous components. The need to bring some organisational structure into ...

    A novel soft computing approach based on FIR to model and predict energy dynamic systems 

    Jurado Gómez, Sergio (Date of defense: 2020-12-21)

    We are facing a global climate crisis that is demanding a change in the status quo of how we produce, distribute and consume energy. In the last decades, this is being redefined through Smart Grids(SG), an intelligent ...

    On some interactive mesh deformations 

    Cerveró Abelló, M. Àngels (Maria Àngels) (Date of defense: 2016-01-29)

    Techniques devoted to deform 3D models are an important research field in Computer Graphics. They can be used in differentstages: the modelling phase, the animation process and also during some special simulations. ...

    On-the-fly synthesizer programming with rule learning 

    Paz Ortiz, Alejandro Iván (Date of defense: 2022-05-03)

    This manuscript explores automatic programming of sound synthesis algorithms within the context of the performative artistic practice known as live coding. Writing source code in an improvised way to create music or visuals ...

    Open source software ecosystems quality analysis from data sources 

    Franco Bedoya, Oscar Hernán (Date of defense: 2018-02-27)

    Background: Open source software (OSS) and software ecosystems (SECOs) are two consolidated research areas in software engineering. The adoption of OSS by firms, governments, researchers and practitioners has been increasing ...

    Real-time quality visualization of medical models on commodity and mobile devices 

    Díaz García, Jesús (Date of defense: 2018-05-25)

    This thesis concerns the specific field of visualization of medical models using commodity and mobile devices. Mechanisms for medical imaging acquisition such as MRI, CT, and micro-CT scanners are continuously evolving, ...

    Realistic reconstruction and rendering of detailed 3D scenarios from multiple data sources 

    Argudo Medrano, Oscar (Date of defense: 2018-07-19)

    During the last years, we have witnessed significant improvements in digital terrain modeling, mainly through photogrammetric techniques based on satellite and aerial photography, as well as laser scanning. These techniques ...