El grup de processament del llenguatge natural inicia la seva activitat al 1988. Des dels seus orígens ha sigut un grup interdisciplinari (informàtica i llingüistica). Ha portat a terme una prolífica activitat en diverses àrees d'investigació dins de processament del llenguatge natural i la intel•ligència artificial. En el processament bàsic de la llengua destaquen els camps de desambiguació morfosintàctica, anàlisis sintàctica i semàntica, desambiguació semàntica, etc., amb especial èmfasi en l'aplicació de mètodes estadístics i d'aprenentatge automàtic per resoldre aquestes tasques. Així mateix, apart de la tecnologia bàsica, també s'aborden aplicacions de més alt nivell, com ara traducció automàtica, extracció d'informació, donar resposta a preguntes, resum automàtic, processament de diccionaris, de corpus textuals, i de recursos lingüístics en general.

http://futur.upc.edu/GPLN

The Natural Language Processing Group (GPLN) conducts research into the automatic processing of natural language, particularly those aspects related to the construction and exploitation of multilingual lexical resources and the extraction of information from documents written in natural language and summarisation. Within these research lines, the GPLN focuses its attention on developing language processing tools, such as morphological and syntactical analysers, grammatical labelers, corpus processing systems, and specific machine learning algorithms for natural language processing and on compiling linguistic resources, such as grammars, dictionaries and lexical and conceptual databases. The GPLN has also been working on natural language software specifications for the development of tools for the quality control of software. The GPLN collaborates with the Speech Processing Group in the research of oral translation and the development of dialogue systems.

http://futur.upc.edu/GPLN

The Natural Language Processing Group (GPLN) conducts research into the automatic processing of natural language, particularly those aspects related to the construction and exploitation of multilingual lexical resources and the extraction of information from documents written in natural language and summarisation. Within these research lines, the GPLN focuses its attention on developing language processing tools, such as morphological and syntactical analysers, grammatical labelers, corpus processing systems, and specific machine learning algorithms for natural language processing and on compiling linguistic resources, such as grammars, dictionaries and lexical and conceptual databases. The GPLN has also been working on natural language software specifications for the development of tools for the quality control of software. The GPLN collaborates with the Speech Processing Group in the research of oral translation and the development of dialogue systems.

http://futur.upc.edu/GPLN

Enviaments recents

  • Restriccions d'integritat temporals en bases de dades deductives bitemporals 

    Martín Escofet, Carme (2000-12)
    Report de recerca
    Accés obert
    The aim of this report is to introduce a taxonomy of temporal integrity constraints, focused on the bitemporal deductive database area, to get a better understanding of why they are required, their behavior and the best ...
  • A Proposal for wide-coverage Spanish named entity recognition 

    Arévalo, M.; Carreras Pérez, Xavier; Màrquez Villodre, Lluís; Martí Antonin, Maria Antònia; Padró, Lluís; Simon, Maria José (2002-04)
    Report de recerca
    Accés obert
    This paper presents a proposal for wide--coverage Named Entity Recognition for Spanish. First, a linguistic description of the typology of Named Entities is proposed. Following this definition an architecture of sequential ...
  • The Synonym management process in SAREL 

    Hernández Gómez, M. Angeles; Castell Ariño, Núria (2002-05)
    Report de recerca
    Accés obert
    The specification phase is one of the most important and least supported parts of the software development process. The SAREL system has been conceived as a knowledge-based tool to improve the specification phase. The ...
  • The Data warehouse: a temporal database 

    Martín Escofet, Carme; Abelló Gamazo, Alberto (2002-11)
    Report de recerca
    Accés obert
    The aim of this paper is to bring together two research areas, i.e. Data Warehouses and Temporal Databases, involving representation of time. In order to achieve this goal, data warehouse and temporal database research ...
  • Searching by approximate personal-name matching 

    Daude Ventura, Jordi; Camps Pare, Rafael (2003-04)
    Report de recerca
    Accés obert
    We discuss the design, building and evaluation of a method to access theinformation of a person, using his name as a search key, even if it has deformations. We present a similarity function, the DEA function, based on ...
  • 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 ...
  • The Modifiability factor in the LESD project: definition and practical results 

    Castell Ariño, Núria; Slavkova Hernández, Ólga (1995-02)
    Report de recerca
    Accés obert
    The LESD project (Linguistic Engineering for Software Development) aims to develop computing tools for analysis and reasoning on functional or preliminary specifications of aerospace software written in English. These tools ...
  • The Completeness problem in LESD 

    Tuells, Antoni; Castell Ariño, Núria (1993-12)
    Report de recerca
    Accés obert
    This report presents an explanation, a classification and some solutions to the completeness problem in the LESD project. The aim of this project is to develop a set of software tools able to help users to write good quality ...
  • Quality control of software specification written in natural language 

    Castell Ariño, Núria; Slavkova Hernández, Ólga; Toussaint, Yannick; Tuells, Antoni (1993-12)
    Report de recerca
    Accés obert
    The growing complexity of computer systems, together with the rapid evolution of hardware, has created two significant problems in Software Engineering: (1) the quality control of software, and (2) the effective communication ...
  • SAREL: an assistance system for writing software specifications in natural language 

    Castell Ariño, Núria; Hernández Gómez, M. Angeles (1994-03)
    Report de recerca
    Accés obert
    This report presents a SAREL system and it is compared with several systems focused on the quality of the specification phase in software development process. The main goal of SAREL system is to assist engineers in the ...

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