Search for dissertations about: "Natural language processing"

Showing result 1 - 5 of 127 swedish dissertations containing the words Natural language processing.

  1. 1. Representation learning for natural language

    Author : Olof Mogren; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; artificial neural networks; artificial intelligence; natural language processing; deep learning; machine learning; summarization; representation learning;

    Abstract : Artificial neural networks have obtained astonishing results in a diverse number of tasks. One of the reasons for the success is their ability to learn the whole task at once (endto-end learning), including the representations for data. READ MORE

  2. 2. Temporal information in natural language

    Author : Magnus Merkel; Linköpings universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Talspråk;

    Abstract : The subject of this thesis is temporal information; how it is expressed and conveyed in natural language. When faced with the task of processing temporal information in natural language computationally, a number of challenges has to be met. READ MORE

  3. 3. Generalized Hebbian Algorithm for Dimensionality Reduction in Natural Language Processing

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

    Abstract : 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. READ MORE

  4. 4. Natural Language Processing for Low-resourced Code-switched Colloquial Languages – The Case of Algerian Language

    Author : Wafia Adouane; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : Natural language processing; Deep neural networks; Low-resourced language; Colloquial language; Code-switch; Dialectal Arabic; User-generated data; Non-standardised orthography; Algerian language;

    Abstract : In this thesis we explore to what extent deep neural networks (DNNs), trained end-to-end, can be used to perform natural language processing tasks for code-switched colloquial languages lacking both large automated data and processing tools, for instance tokenisers, morpho-syntactic and semantic parsers, etc. We opt for an end-to-end learning approach because this kind of data is hard to control due to its high orthographic and linguistic variability. READ MORE

  5. 5. Natural Language Processing Methods for Automatic Illustration of Text

    Author : Richard Johansson; Institutionen för datavetenskap; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Natural language processing; semantic analysis; automatic illustration;

    Abstract : The thesis describes methods for automatic creation of illustrations of natural-language text. The main focus of the work is to convert texts that describe sequences of events in a physical world into animated images. This is what we call text-to-scene conversion. READ MORE