Sökning: "Natural Sciences Computer and Information Science Language Technology Computational Linguistics"

Visar resultat 11 - 14 av 14 avhandlingar innehållade orden Natural Sciences Computer and Information Science Language Technology Computational Linguistics.

  1. 11. Generalized Hebbian Algorithm for Dimensionality Reduction in Natural Language Processing

    Författare :Genevieve Gorrell; Arne Jönsson; Robin Cooper; Alexander Rudnicky; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Generalized Hebbian Algorithm; Language Modelling; Singular Value Decomposition; Eigen Decomposition; Latent Semantic Analysis; Vector Space Models; Computational linguistics; Datorlingvistik;

    Sammanfattning : The current surge of interest in search and comparison tasks in natural language processing has brought with it a focus on vector space approaches and vector space dimensionality reduction techniques. Presenting data as points in hyperspace provides opportunities to use a variety of welldeveloped tools pertinent to this representation. LÄS MER

  3. 12. Word Alignment by Re-using Parallel Phrases

    Författare :Maria Holmqvist; Lars Ahrenberg; Magnus Merkel; Jörg Tiedemann; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; computational linguistics; Computational linguistics; Datorlingvistik;

    Sammanfattning : In this thesis we present the idea of using parallel phrases for word alignment. Each parallel phrase is extracted from a set of manual word alignments and contains a number of source and target words and their corresponding alignments. If a parallel phrase matches a new sentence pair, its word alignments can be applied to the new sentence. LÄS MER

  4. 13. Question Classification in Question Answering Systems

    Författare :Håkan Sundblad; Arne Jönsson; Jussi Karlgren; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Question classification; question answering; machine learning; taxonomy; evaluation; Computational linguistics; Datorlingvistik;

    Sammanfattning : Question answering systems can be seen as the next step in information retrieval, allowing users to pose questions in natural language and receive succinct answers. In order for a question answering system as a whole to be successful, research has shown that the correct classification of questions with regards to the expected answer type is imperative. LÄS MER

  5. 14. Quantifying Meaning

    Författare :Amaru Cuba Gyllensten; Anders Holst; Hinrich Schütze; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Datalogi; Computer Science;

    Sammanfattning : Distributionella semantikmodeller är en klass av maskininlärningsmodeller med syfte att konstruera representationer som fångar semantik, i.e. mening, av objekt som bär mening på ett datadrivet sätt. LÄS MER