Sökning: "squares"

Visar resultat 21 - 25 av 809 uppsatser innehållade ordet squares.

  1. 21. Ranging Error Correction in a Narrowband, Sub-GHz, RF Localization System

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Silvia Barrett; [2023]
    Nyckelord :Localization; Narrowband; Sub-GHz; Radio Frequency; RSSI; Time-of-Flight; Error mitigation; Machine Learning; Linear Regression; LeastSquares Support Vector Machine Regression; Gaussian Process Regression; Loalisering; Narrowband; Sub-GHz; Radiofrekvens; RSSI; Time-of-Flight; Felkorrigering; Machine Learning; Linear Regression; LeastSquares Support Vector Machine Regression; Gaussian Process Regression;

    Sammanfattning : Being able to keep track of ones assets is a very useful thing, from avoiding losing ones keys or phone to being able to find the needed equipment in a busy hospital or on a construction site. The area of localization is actively evolving to find the best ways to accurately track objects and devices in an energy efficient manner, at any range, and in any type of environment. LÄS MER

  3. 22. Magnetic field separation for current prediction in three-phase systems : Regression-based current prediction

    Master-uppsats, Mälardalens universitet/Akademin för innovation, design och teknik

    Författare :Sara Lenman; Sofia Blaad; [2023]
    Nyckelord :Alternating Current; Crosstalk Separation; Magnetic field sensors; Regression; Sensor technology; Three-phase system;

    Sammanfattning : Current controls the motion of a manipulator. The manipulators at ABB are powered by a three-phase alternating current system where shunt resistors are utilised to measure the current to the motors. Magnetic field sensors are instead investigated to eliminate issues with power losses, the number of components and the cost of the shunt resistors. LÄS MER

  4. 23. A review of the Kaczmarz method

    Kandidat-uppsats, Lunds universitet/Matematikcentrum; Lunds universitet/Matematik (naturvetenskapliga fakulteten)

    Författare :Carl Lokrantz; [2023]
    Nyckelord :Kaczmarz method; Least squares; Image reconstruction; Iterative method; Linear system of equations; Projection; Numerical Linear Algebra; Block Kaczmarz; Greedy Kaczmarz; Randomized Kaczmarz; Mathematics and Statistics;

    Sammanfattning : The Kaczmarz method is an iterative method for solving linear systems of equations. The Kaczmarz method has been around since it was developed by Kaczmarz 1937. The main idea behind the original Kaczmarz method is to orthogonally project the previous x_k onto the solution space given by a row of the system. LÄS MER

  5. 24. Coverage initiations : an exploratory casestudy

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Lina Ek; Maria Karlsson Osipova; [2023]
    Nyckelord :Commissioned equity research; Initiation report; Event study; Abnormal return; Trading volume; Uppdragsanalys; Initieringsrapport; Eventstudie; Abnormal avkastning; Handelsvolym;

    Sammanfattning : This master thesis is exploring the influence of coverage initiation reports issued by commissioned equity research analysts on stock prices and trading volumes. Equity research actors, with their expertise and skill, are providing the market with valuable information and filling the knowledge gaps that investors may have. LÄS MER

  7. 25. De nordiska techbolagens resa till börsen. En billig sista minuten charter?

    Kandidat-uppsats, Lunds universitet/Företagsekonomiska institutionen

    Författare :Erik Lindfors; Joen Sundmark; David Åhlander; [2023]
    Nyckelord :Underprissättning; Techbolag; IPO; Norden; Informationsasymmetri; Business and Economics;

    Sammanfattning : Forskningsfrågor: Förekommer det en skillnad i underprissättning mellan techbolag och icke-techbolag som noteras på aktiemarknader i Norden? Hur påverkar specifika variabler underprissättning på de nordiska börsmarknaderna? Syfte: Studien syftar till att undersöka om det finns en skillnad i underprissättning mellan techbolag och icke-techbolag samt hur specifika variabler påverkar underprissättning vid IPOs i Norden. Metod: Studien använder en kvantitativ forskningsmetod med en deduktiv ansats där börsintroduktioner mellan 2010-01-01 och 2019-12-31 undersöks. LÄS MER