Search for dissertations about: "topic models"

Showing result 11 - 15 of 284 swedish dissertations containing the words topic models.

  2. 11. The Search for Syntax : Investigating the Syntactic Knowledge of Neural Language Models Through the Lens of Dependency Parsing

    Author : Artur Kulmizev; Joakim Nivre; Roger Levy; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; syntax; language models; dependency parsing; universal dependencies; Datorlingvistik; Computational Linguistics;

    Abstract : Syntax — the study of the hierarchical structure of language — has long featured as a prominent research topic in the field of natural language processing (NLP). Traditionally, its role in NLP was confined towards developing parsers: supervised algorithms tasked with predicting the structure of utterances (often for use in downstream applications). READ MORE

  4. 12. On the Quality of Feature Models

    Author : Christer Thörn; Kurt Sandkuhl; Kristian Sandahl; Sture Hägglund; Martin Grosse-Rhode; Linköpings universitet; []
    Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Variability has become an important aspect of modern software-intensive products and systems. In order to reach new markets and utilize existing resources through reuse, it is necessary to have effective management of variants, configurations, and reusable functionality. READ MORE

  5. 13. Driver behavior models for evaluating automotive active safety: From neural dynamics to vehicle dynamics

    Author : Gustav M Markkula; Chalmers tekniska högskola; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; simulation; active safety; control behavior; system evaluation; Driver models;

    Abstract : The main topic of this thesis is how to realistically model driver behavior in computer simulations of safety critical traffic events, an increasingly important tool for evaluating automotive active safety systems. By means of a comprehensive literature review, it was found that current driver models are generally poorly validated on relevant near-crash behavior data. READ MORE

  6. 14. Essays on financial time series models : Stochastic volatility and long memory

    Author : Jonas Andersson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Informatics; computer and systems science; Informatik; data- och systemvetenskap; Informatics; computer and systems science; Informatik; data- och systemvetenskap; statistik; Statistics;

    Abstract : This work consists of five articles about the statistical aspects of financial time series models. The first three papers investigate and develop the inverse normal Gaussian stochastic volatility (NIGSV) model, initially suggested by Barndorff- Nielsen (1997). READ MORE

  7. 15. Estimation Using Low Rank Signal Models

    Author : Kaushik Mahata; Torsten Söderström; Mats Viberg; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; parameter estimation; separable least squares; statistical analysis; viscoelasticity; subspace algorithms; spectrum estimation; Signal processing; Signalbehandling;

    Abstract : Designing estimators based on low rank signal models is a common practice in signal processing. Some of these estimators are designed to use a single low rank snapshot vector, while others employ multiple snapshots. This dissertation deals with both these cases in different contexts. READ MORE