Sökning: "Invariant sets"

Visar resultat 1 - 5 av 12 uppsatser innehållade orden Invariant sets.

  1. 1. Event categorisation and Machine-learning Techniques in Searches for Higgs Boson Pairs in the ATLAS Experiment at the LHC

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Högenergifysik

    Författare :Milads Emadi; [2023]
    Nyckelord :Particle Physics; ATLAS; BDT; Boosted Decision Tree; Decision Tree; Optimization; Machine Learning; Analysis;

    Sammanfattning : This thesis investigates the pair production of Higgs bosons (di-Higgs events) at the ATLAS experiment in the Large Hadron Collider (LHC), focusing on the channel where one Higgs boson decays into two bottom quarks and the other decays into two tau leptons. The main objective was to determine whether introducing a split in the invariant mass of the decay products from the two Higgs bosons (the di-Higgs mass) and using this as an analysis variable improves the sensitivity of the Boosted Decision Tree (BDT) machine learning algorithm to the di-Higgs signal. LÄS MER

  3. 2. Extraction of Loudspeaker- and room impulse responses under overlapping conditions

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Signaler och system

    Författare :Felix Gustafsson; [2022]
    Nyckelord :Signal processing; Optimization; Acoustics; Dereverberation; Sparse deconvolution; Multipath propagation;

    Sammanfattning : A loudspeaker is often considered to be a Linear Time Invariant (LTI) system, which can be completely categorized by its impulse response. What sets loudspeakers apart from other LTI-systems is the acoustical aspect including echoes, which makes it a lot harder to take accurate noise free measurements compared to other LTI-systems such as a simple RC circuit. LÄS MER

  4. 3. Accelerated test for vehicle body durability basedon vehicle dynamics simulations using pseudodamage

    Master-uppsats, KTH/Fordonsdynamik

    Författare :Nicola Giacomini; [2020]
    Nyckelord :;

    Sammanfattning : Vehicle body durability evaluation strongly relies on the possibility of testing areal prototype on different testing surfaces, such as proving grounds, test rigsand real roads. Although many efforts have been made to reduce time requiredfor testing, this still remains one of the main resource-demanding phases in avehicle development. LÄS MER

  5. 4. Motion Planning using Positively Invariant Sets on a Small-Scale Autonomous Vehicle

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Richard Bai; Karl Fredrik Erliksson; [2018]
    Nyckelord :Technology and Engineering;

    Sammanfattning : Self-driving technology has the opportunity to increase safety in automotive transportation by reducing the impact of human error. Motion planning is a key component of an autonomous system, responsible for providing reference trajectories and paths that the vehicle should follow. LÄS MER

  7. 5. An investigation of Recent Deep Learning Techniques Applied to Blood Cell Image Analysis

    Master-uppsats, Lunds universitet/Matematik LTH

    Författare :Andreas Forslöw; [2018]
    Nyckelord :deep learning; machine learning; capsule networks; neural networks; Geoffrey Hinton; Sara Sabour; Hinton; Sabour; Frosst; dynamic routing; em routing; cellavision; andreas forslöw; anders heyden; mattias nilsson; image classification; image analysis; blood cells; white blood cells; Mathematics and Statistics;

    Sammanfattning : This project has investigated the performances of Capsule Networks in comparison to Convolutional Neural Networks (CNNs) on white blood cell image classification at CellaVision. The Capsule Network models that were investigated are EM Routing Capsule Networks (EMCNs) and Dynamic Routing Capsule Networks (DCNs). LÄS MER