Sökning: "Time-Series Models"

Visar resultat 11 - 15 av 212 avhandlingar innehållade orden Time-Series Models.

  1. 11. Indexing strategies for time series data

    Författare :Henrik André-Jönsson; Nahid Shahmehri; Patrick Lambrix; Tore Risch; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer science; Datavetenskap;

    Sammanfattning : Traditionally, databases have stored textual data and have been used to store administrative information. The computers used. and more specifically the storage available, have been neither large enough nor fast enough to allow databases to be used for more technical applications. LÄS MER

  3. 12. Wavelet Analysis of Economic Time Series

    Författare :Fredrik N G Andersson; Nationalekonomiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; freight transportation activity; wavelet analysis; cointegration; inflation; bandspectrum regression; money; coreinflation;

    Sammanfattning : Economic theory commonly distinguishes between different time horizons such as the short run and the long run. Models with many time horizons are easily studied in the frequency domain, because the various time horizons are associated with a particular frequency or band of frequencies. LÄS MER

  4. 13. Modelling macroeconomic time series with smooth transition autoregressions

    Författare :Joakim Skalin; Handelshögskolan i Stockholm; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Among the parametric nonlinear time series model families, the smooth transition regression (STR) model has recently received attention in the literature. The considerations in this dissertation focus on the univariate special case of this model, the smooth transition autoregression (STAR) model, although large parts of the discussion can be easily generalised to the more general STR case. LÄS MER

  5. 14. Time-Series Econometrics Applied to Macroeconomic Issues

    Författare :Abdulnasser Hatemi-J; Jönköping University; []
    Nyckelord :;

    Sammanfattning : This doctoral dissertation is a collection of six articles. Special attention is paid to model specification and the time-series properties of the data applied in each case. The first two articles deal with fiscal policy in Sweden and the effects of EMU criteria convergence. LÄS MER

  7. 15. User Modeling for Adaptive Virtual Reality Experiences : Personalization from Behavioral and Physiological Time Series

    Författare :Luis Quintero; Uno Fors; Lijffijt Jefrey; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; virtual reality; VR; machine learning; ML; user modeling; personalization; wearable; heart rate; HRV; biosensors; movement; behavioral; user experience; UX; spatial computing; metaverse; extended reality; XR; data- och systemvetenskap; Computer and Systems Sciences;

    Sammanfattning : Research in human-computer interaction (HCI) has focused on designing technological systems that serve a beneficial purpose, offer intuitive interfaces, and adapt to a person's expectations, goals, and abilities. Nearly all digital services available in our daily lives have personalization capabilities, mainly due to the ubiquity of mobile devices and the progress that has been made in machine learning (ML) algorithms. LÄS MER