Sökning: "window query"

Hittade 5 uppsatser innehållade orden window query.

  1. 1. Post-Correction of time series forecasts

    Uppsats för yrkesexamina på avancerad nivå, Högskolan i Halmstad/Akademin för informationsteknologi

    Författare :Arunas Kalinauskas; Dennis Slepov; [2023]
    Nyckelord :time series forecasting;

    Sammanfattning : Time series forecasting is an important problem with various applications in different domains. Improving forecast performance has been the center of investigation in the last decades. Several pieces of research show that old statistical methods, such as ARIMA, are still state-of-the-art in many domains and applications. LÄS MER

  3. 2. Maintaining Stream Data Distribution Over Sliding Window

    Master-uppsats, Mittuniversitetet/Avdelningen för informationssystem och -teknologi

    Författare :Jian Chen; [2018]
    Nyckelord :Datastream; online algorithm; quantile problem; online analysis;

    Sammanfattning : In modern applications, it is a big challenge that analyzing the order statistics about the most recent parts of the high-volume and high velocity stream data. There are some online quantile algorithms that can keep the sketch of the data in the sliding window and they can answer the quantile or rank query in a very short time. LÄS MER

  4. 3. Generating geospatial heatmaps : Optimizing point-region quadtrees for window queries

    Master-uppsats, KTH/Skolan för datavetenskap och kommunikation (CSC)

    Författare :Jesper Norberg; [2015]
    Nyckelord :geospatial; geographic; heatmap; point region; point-region; quadtree; window query; värmekarta; fönsterförfrågning; geografisk;

    Sammanfattning : This study aims to investigate and identify how to effectively generate blurred geospatial heatmaps for use in geo-spatial map engines. We focus on how to store the points in a way that facilitates efficient window querying, with support for zoom-level handling. LÄS MER

  5. 4. An Android mobile GIS application for facilitating field work in electric utility

    Kandidat-uppsats, Högskolan i Gävle/Avdelningen för Industriell utveckling, IT och Samhällsbyggnad

    Författare :Xiaoguo Wan; [2014]
    Nyckelord :Mobile GIS; electric utilities; field work; Android; mobile application;

    Sammanfattning : Geographic Information System (GIS) is a technology that can help collect, edit, store, manage, transform, analyze and represent data. This research aimed to show how mobile GIS application can  be designed, developed and applied to electric field work. An Android mobile application, which had been integrated with GIS was developed in Java. LÄS MER

  7. 5. Frequent Route Based Continuous Moving Object Location and Density Prediction on Road Networks

    Master-uppsats, Institutionen för informationsteknologi

    Författare :Manohar Kaul; [2011]
    Nyckelord :;

    Sammanfattning : Emerging trends in urban mobility have accelerated the need for effective traffic management and prediction systems. Simultaneously, the widespread adoption of GPS-enabled mobile devices has opened radical new possibilities for such systems. LÄS MER