Sökning: "time series outliers"

Visar resultat 21 - 25 av 26 uppsatser innehållade orden time series outliers.

  1. 21. Online Outlier Detection in Financial Time Series

    Master-uppsats, KTH/Matematisk statistik

    Författare :Robin Sedman; [2018]
    Nyckelord :;

    Sammanfattning : In this Master’s thesis, different models for outlier detection in financial time series are examined. The financial time series are price series such as index prices or asset prices. Outliers are, in this thesis, defined as extreme and false points, but this definition is also investigated and revised. LÄS MER

  3. 22. Time series prediction for algorithmic rescaling in the cloud

    Master-uppsats, Lunds universitet/Matematik LTH

    Författare :Björn Elmers Bonnedal; [2016]
    Nyckelord :Mathematics and Statistics; Technology and Engineering;

    Sammanfattning : The main goal of this thesis is to predict the number of players in some instance of DICE’s gaming platforms, e.g. Battlefield 3 for PC, 15 minutes in the future. This prediction may be used by the company when buying on-demand cloud servers to tell them how much they need to buy. LÄS MER

  4. 23. Wisdom-volkano : a novel tool based on open GIS and time-series to analyse and share volcanic data

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Fulgencio Sanmartín; [2016]
    Nyckelord :GIS; volcanic eruption; interferogram; time-series; seismology; GNSS; Physical Geography and Ecosystem analysis; Earth and Environmental Sciences;

    Sammanfattning : Active volcanoes threaten life around. In order to predict their eruptions earlier and mitigate their hazards, several variables must be observed and compared. Geographical information systems (GIS) combine different geospatial images from remote or local sensing. However, GIS often miss how maps change during the time. LÄS MER

  5. 24. An automated forecasting method for workloads on web-based systems : Employing an adaptive method using splines to forecast seasonal time series with outliers

    Master-uppsats, Umeå universitet/Institutionen för matematik och matematisk statistik

    Författare :Ali-Reza Rezaie; [2014]
    Nyckelord :;

    Sammanfattning : This thesis introduces an automated forecasting method of time series for popular websites type of workload, such as the Wikimedia workload. These type of workloads are characterized by slowly, pronounced, changing seasonal pattern with occasional missing values and extreme outliers. LÄS MER

  7. 25. Extremvärdesanalys av grundvattennivåmätserier.

    Master-uppsats, KTH/Mark- och vattenteknik

    Författare :Ezra Haaf; [2014]
    Nyckelord :Grundvattennivå; Extremvärdesteori; Mätintervall; Årstidsfluktuation;

    Sammanfattning : Syftet med detta examensarbete är att kunna beräkna sannolikheten av extrema grundvattennivåers återkomsttid. Detta är av betydelse för till exempel dimensionering av grundläggning när risken för hydraulisk bottenupptryckning eller skredrisk måste vantifieras. LÄS MER