Browsing by Subject "Natural language processing (Computer science)"

Now showing items 1-20 of 138

  • A comparison of approaches for measuring cross-lingual similarity of wikipedia articles 

    Barrón-Cedeño, Alberto; Lestari Paramita, Monica; Clough, Paul; Rosso, Paolo (Springer, 2014)
    Conference report
    Open Access
    Wikipedia has been used as a source of comparable texts for a range of tasks, such as Statistical Machine Translation and Cross-Language Information Retrieval. Articles written in different languages on the same topic are ...

  • A differentiable BLEU loss. Analysis and first results 

    Casas Manzanares, Noé; Rodríguez Fonollosa, José Adrián; Ruiz Costa-Jussà, Marta (2018)
    Conference report
    Open Access
    In natural language generation tasks, like neural machine translation and image captioning, there is usually a mismatch between the optimized loss and the de facto evaluation criterion, namely token-level maximum likelihood ...

  • ADN-classifier: automatically assigning denotation types to nominalizations 

    Peris, Aina; Taulé, Mariona; Boleda Torrent, Gemma; Rodríguez Hontoria, Horacio (2010)
    Conference report
    Open Access
    This paper presents the ADN-Classifier, an Automatic classification system of Spanish Deverbal Nominalizations aimed at identifying its semantic denotation (i.e. event, result, underspecified, or lexicalized). The classifier ...

  • A graph-based strategy to streamline translation quality assessments 

    Pighin, Daniele; Formiga Fanals, Lluís; Màrquez Villodre, Lluís (2012)
    Conference report
    Open Access
    We present a detailed analysis of a graph- based annotation strategy that we employed to annotate a corpus of 11,292 real-world En- glish to Spanish automatic translations with relative (ranking) and absolute ...

  • AI on software engineering processes 

    Miralles Pena, Carles (Universitat Politècnica de Catalunya, 2018-01)
    Master thesis
    Open Access
    Covenantee:  Universitat de Barcelona / Universitat Rovira i Virgili
    Due to the large quantity of available information as well as the huge computational power achieved today, the application of Artificial Intelligence (AI) in computer programs has become, now more than ever, much popular. ...

  • Un algoritme per detectar la relació temporal de dues paraules. 

    Núñez Ruiz, Gerard (Universitat Politècnica de Catalunya, 2017-06-21)
    Bachelor thesis
    Open Access
    La informació sobre la relació temporal entre dues paraules és una informació que nosaltres deduïm del text però és un camp actualment en investigació al nivell d'intel·ligència artificial. Aquest projecte està basat en ...

  • Alias assignment in information extraction 

    Sapena Masip, Emilio; Padró, Lluís; Turmo Borras, Jorge (-, 2007-01-31)
    Conference report
    Restricted access - publisher's policy
    This paper presents a general method for alias assignment task in information extraction. We compared two approaches to face the problem and learn a classifier. The first one quantifies a global similarity between the alias ...

  • Aligning textual and graphical descriptions of processes through ILP techniques 

    Sànchez-Ferreres, Josep; Carmona Vargas, Josep; Padró, Lluís (Springer, 2017)
    Conference lecture
    Open Access
    With the aim of having individuals from different backgrounds and expertise levels examine the operations in an organization, different representations of business processes are maintained. To have these different ...

  • An adaptive gradient-search based algorithm for discriminative training of hmm's 

    Nogueiras Rodríguez, Albino; Mariño Acebal, José Bernardo; Monte Moreno, Enrique (Robert H. Mannel and Jordi Robert-Ribes, 1998)
    Conference lecture
    Restricted access - publisher's policy
    Although having revealed to be a very powerful tool in acoustic modelling, discriminative training presents a major drawback: the lack of a formulation guaranteeing convergence in no matter which initial conditions, such ...

  • Anàlisi del comerç en línia a partir de l'estudi del client i les seves valoracions 

    Villalobos Guiral, Albert (Universitat Politècnica de Catalunya, 2017-06)
    Bachelor thesis
    Restricted access - confidentiality agreement

  • Anàlisi i similitud d'articles acadèmics utilitzant tècniques de llenguatge natural i xarxes neuronals 

    Botet Colomer, Marc (Universitat Politècnica de Catalunya, 2019-01)
    Bachelor thesis
    Open Access
    This project has reviewed the state of the art in natural language processing in order to extract the similarity between academic papers. In addition, analysis tools have been added in order to study the evolution of the ...

  • Analyzing Twitter data to discover gender biases in Spanish politics 

    Beltrán Jorba, Javier (Universitat Politècnica de Catalunya, 2018-06-27)
    Master thesis
    Open Access
    Covenantee:  Universitat de Barcelona. Facultat de Matemàtiques i Informàtica / Universitat Rovira i Virgili. Escola Tècnica Superior d'Enginyeria
    This work uses Twitter data from Spanish politicians to discover differences in how men and women speak in politics, as well as differences in how men and women politicians are addressed by others. A tool for automatic ...

  • Annotation and representation of a diachronic corpus of Spanish 

    Sánchez-Marco, Cristina; Boleda Torrent, Gemma; Fontana, Josep Maria; Domingo, Judith (2010)
    Conference report
    Open Access
    In this article we describe two different strategies for the automatic tagging of a Spanish diachronic corpus involving the adaptation of existing NLP tools developed for modern Spanish. In the initial approach we follow ...

  • Aprendizaje y asistencia virtual en red 

    Fuentes Fort, Maria; González Bermúdez, Meritxell; Guardiola Garcia, Marta; Jofre Roca, Lluís; Romeu Robert, Jordi; Vallverdú Bayés, Sisco (2011-01-20)
    External research report
    Open Access
    Favorecer el uso de las Tecnologías de Información y la Comunicación (TIC) en entornos educativos puede abarcar varios aspectos del proceso de aprendizaje. La incorporación de TICs en las aulas contribuye, por un lado a ...

  • Arabic medical entity tagging using distant learning in a multilingual framework 

    Cotik, Viviana; Rodríguez Hontoria, Horacio; Vivaldi, Jorge (Elsevier, 2017-04-30)
    Article
    Open Access
    A semantic tagger aiming to detect relevant entities in Arabic medical documents and tagging them with their appropriate semantic class is presented. The system takes profit of a Multilingual Framework covering four languages ...

  • A second-order joint Eisner model for syntactic and semantic dependency parsing 

    Lluis Martorell, Xavier; Bott, Stefan Markus; Màrquez Villodre, Lluís (2009)
    Conference lecture
    Restricted access - publisher's policy
    We present a system developed for the CoNLL-2009 Shared Task (Hajic et al., 2009). We extend the Carreras (2007) parser to jointly annotate syntactic and semantic dependencies. This state-of-the-art parser factorizes the ...

  • Asistente virtual para estudiantes de la FIB 

    Busqué Somacarrera, Víctor (Universitat Politècnica de Catalunya, 2018-07)
    Bachelor thesis
    Open Access
    Se ha desarrollado un chatbot para la aplicación Telegram capaz de responder a consultas acerca de la facultad usando lenguaje natural. Además el chatbot es capaz de enviar automáticamente mensajes a los usuarios con avisos ...

  • A Speech-based Dialogue System for Household Robots 

    Pons Rueda, Susana (Universitat Politècnica de Catalunya / Technische Universiteit Delft, 2011)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    This thesis studies mechanisms to improve human-robot-interaction through a spoken dialogue for household robots. Therefore, a full dialogue system, in which the semantics of the words play an important role, is ...

  • Automatic acquisition of sense examples using Exretriever 

    Fernández, Juan; Castillo Valdés, Mauro; Rigau Claramunt, German; Atserias Batalla, Jordi; Tormo, Jordi (2004)
    Conference report
    Open Access
    A current research line for word sense disambiguation (WSD) focuses on the use of supervised machine learning techniques. One of the drawbacks of using such techniques is that previously sense annotated data is required. ...

  • Biomedical abbreviation recognition and resolution by PROSA-MED 

    Montalvo, Soto; Oronoz, Maite; Rodríguez Hontoria, Horacio; Martínez, Raquel (CEUR-WS.org, 2017)
    Conference report
    Open Access
    The amount of abbreviations used in biomedical literature increases constantly. Despite the existence of acronym dictionaries, it is not viable to keep them updated with new creations. Thus, in the processing of biomedical ...