Ara es mostren els items 9-28 de 46

    • Boosting applied to word sense disambiguation 

      Escudero Bakx, Gerard; Màrquez Villodre, Lluís; Rigau Claramunt, German (2000-01)
      Report de recerca
      Accés obert
      In this paper we apply Schapire and Singer's AdaBoost.MH boosting algorithm to the Word Sense Disambiguation (WSD) problem. Initial experiments on a set of 15 selected polysemous words show that the boosting approach ...
    • Boosting trees for anti-spam email filtering (Extended version) 

      Carreras Pérez, Xavier; Màrquez Villodre, Lluís (2001-10)
      Report de recerca
      Accés obert
      In this work, a set of comparative experiments for the problem of automatically filtering unwanted electronic mail messages are performed on two public corpora: PU1 and LingSpam. Several variants of the AdaBoost algorithm ...
    • Context-aware machine translation for software localization 

      Muntés Mulero, Víctor; Paladini Adell, Patricia; España Bonet, Cristina; Màrquez Villodre, Lluís (2012)
      Comunicació de congrés
      Accés obert
      Software localization requires translating short text strings appearing in user interfaces (UI) into several languages. These strings are usually unrelated to the other strings in the UI. Due to the lack of semantic ...
    • Deep evaluation of hybrid architectures: simple metrics correlated with human judgments 

      Labaka, Gorka; Díaz de Ilarraza Sánchez, Arantza; Sarasola Gabiola, Kepa; España Bonet, Cristina; Màrquez Villodre, Lluís (2011)
      Comunicació de congrés
      Accés obert
      The process of developing hybrid MT systems is guided by the evaluation method used to compare different combinations of basic subsystems. This work presents a deep evaluation experiment of a hybrid architecture ...
    • Deep evaluation of hybrid architectures: Use of different metrics in MERT weight optimization 

      España Bonet, Cristina; Labaka, Gorka; Díaz de Ilarraza Sánchez, Arantza; Màrquez Villodre, Lluís; Sarasola, Kepa (2013)
      Text en actes de congrés
      Accés obert
      The process of developing hybrid MT systems is usually guided by an evaluation method used to compare different combinations of basic subsystems. This work presents a deep evaluation experiment of a hybrid architecture, ...
    • Discriminative learning within Arabic statistical machine translation 

      España Bonet, Cristina; Giménez, Jesús; Màrquez Villodre, Lluís (2009-01)
      Report de recerca
      Accés obert
      Written Arabic is a especially ambiguous due to the lack of diacritisation of texts, and this makes the translation harder for automatic systems that do not take into account the context of phrases. Here, we use a standard ...
    • Document-level machine translation as a re-translation process 

      Martínez Garcia, Eva; España Bonet, Cristina; Màrquez Villodre, Lluís (2014-09-22)
      Article
      Accés obert
      Most of the current Machine Translation systems are designed to translate a document sentence by sentence ignoring discourse information and producing incoherencies in the final translations. In this paper we present some ...
    • Exploiting diversity of margin-based classifiers 

      Romero Merino, Enrique; Carreras Pérez, Xavier; Màrquez Villodre, Lluís (2003-12)
      Report de recerca
      Accés obert
      An experimental comparison among Support Vector Machines, AdaBoost and a recently proposed model for maximizing the margin with Feed-forward Neural Networks has been made on a real-world classification problem, namely ...
    • Hybrid machine translation guided by a rule-based system 

      España Bonet, Cristina; Màrquez Villodre, Lluís; Labaka, Gorka; Díaz de Ilarraza Sánchez, Arantza; Sarasola Gabiola, Kepa (2011)
      Comunicació de congrés
      Accés obert
      This paper presents a machine translation architecture which hybridizes Matxin, a rulebased system, with regular phrase-based Statistical Machine Translation. In short, the hybrid translation process is guided by the ...
    • Identifying useful human correction feedback from an on-line machine translation service 

      Barrón-Cedeño, Alberto; Màrquez Villodre, Lluís; Henríquez Quintana, Carlos Alberto; Formiga Fanals, Lluís; Romero Merino, Enrique; May, Jonathan (2013)
      Text en actes de congrés
      Accés obert
      Post-editing feedback provided by users of on-line translation services offers an excellent opportunity for automatic improvement of statistical machine translation (SMT) systems. However, feedback provided by casual users ...
    • Identifying useful human feedback from an on-line translation service 

      Barrón-Cedeño, Alberto; Màrquez Villodre, Lluís; Henríquez Quintana, Carlos Alberto; Formiga Fanals, Lluís; Romero Merino, Enrique; May, Jonathan (2013)
      Comunicació de congrés
      Accés obert
      Post-editing feedback provided by users of on-line translation services offers an excellent opportunity for automatic improvement of statistical machine translation (SMT) systems. However, feedback provided by casual ...
    • IPA and STOUT: leveraging linguistic and source-based features for machine translation evaluation 

      González Bermúdez, Meritxell; Barrón-Cedeño, Alberto; Màrquez Villodre, Lluís (Association for Computational Linguistics, 2014)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      This paper describes the UPC submissions to the WMT14 Metrics Shared Task : UPC-IPA and UPC-STOUT. These metrics use a collection of evaluation measures integrated in ASIYA, a toolkit for machine translation evaluation. ...
    • Joint arc-factored parsing of syntactic and semantic dependencies 

      Lluis Martorell, Xavier; Carreras Pérez, Xavier; Màrquez Villodre, Lluís (2013-05)
      Article
      Accés restringit per política de l'editorial
      In this paper we introduce a joint arc-factored model for syntactic and semantic dependency parsing. The semantic role labeler predicts the full syntactic paths that connect predicates with their arguments. This process ...
    • Lenguajes, gramáticas y autómatas : curso básico 

      Cases Muñoz, Rafel; Màrquez Villodre, Lluís (Edicions UPC, 2001)
      Llibre
      Accés restringit a la comunitat UPC
      El objeto de este libro es servir de soporte a un curso de introducción a la informática teórica, dirigido a estudiantes de primer ciclo de ingeniería. Aborda los temas de lenguajes regulares e incontextuales y expone sus ...
    • Linguistic measures for automatic machine translation evaluation 

      Giménez Linares, Jesús Ángel; Màrquez Villodre, Lluís (2010-12)
      Article
      Accés restringit per política de l'editorial
      Assessing the quality of candidate translations involves diverse linguistic facets. However, most automatic evaluation methods in use today rely on limited quality assumptions, such as lexical similarity. This introduces ...
    • Llenguatges, gramàtiques i autòmats : curs bàsic 

      Cases Muñoz, Rafel; Màrquez Villodre, Lluís (Edicions UPC, 2000)
      Llibre
      Accés restringit a la comunitat UPC
      L'objecte d'aquest llibre és servir de suport a un curs d'introducció a la informàtica teòrica, adreçat a estudiants de primer curs d'enginyeria. Cobreix els temes de llenguatges regulars i incontextuals. N'exposa els ...
    • Llenguatges, gramàtiques i autòmats : curs bàsic 

      Cases Muñoz, Rafel; Màrquez Villodre, Lluís (Edicions UPC, 2003)
      Llibre
      Accés restringit a la comunitat UPC
      L'objecte d'aquest llibre és servir de suport a un curs d'introducció a la informàtica teòrica, adreçat a estudiants de primer curs d'enginyeria. Cobreix els temes de llenguatges regulars i incontextuals. N'exposa els ...
    • Machine learning and natural language processing 

      Màrquez Villodre, Lluís (2000-07)
      Report de recerca
      Accés obert
      In this report, some collaborative work between the fields of Machine Learning (ML) and Natural Language Processing (NLP) is presented. The document is structured in two parts. The first part includes a superficial but ...
    • Margin maximization with feed-forward neural networks: a comparative study with support vector machines and AdaBoost 

      Romero Merino, Enrique; Màrquez Villodre, Lluís; Carreras Pérez, Xavier (2003-06)
      Report de recerca
      Accés obert
      Feed-forward Neural Networks (FNN) and Support Vector Machines (SVM) are two machine learning frameworks developed from very different starting points of view. In this work a new learning model for FNN is proposed such ...
    • Mètode de determinació d'àmbits de quantificació en un entorn de representació semàntica de frases en llenguatge natural 

      Màrquez Villodre, Lluís (1994)
      Report de recerca
      Accés obert
      El present treball descriu un sistema de reescriptura, basat en el proposat per Patrick Saint-Dizier l'any 1985, que permet reordenar el rang dels quantificadors introduïts pels determinants que apareixen en frases de ...