Sökning: "Modellering av data"

Visar resultat 1 - 5 av 659 uppsatser innehållade orden Modellering av data.

  1. 1. Supervised Machine Learning Modeling in Secondary Metallurgy : Predicting the Liquid Steel Temperature After the Vacuum Treatment Step of the Vacuum Tank Degasser

    Master-uppsats, KTH/Materialvetenskap

    Författare :Roberto Vita; [2022]
    Nyckelord :Industy 4.0; Machine Learning; Statistical Modeling; Temperature Prediction; Vacuum Tank Degasser; Vacuum Treatment Step.; Industri 4.0; Maskininlärning; Statistisk modellering; Temperaturförutsägelse; Vakuumbehandlingssteg; Vakuumtankavgasare;

    Sammanfattning : In recent years the steelmaking industry has been subjected to continuous attempts to improve its production route. The main goals has been to increase the competitiveness and to reduce the environmental impact. The development of predictive models has therefore been of crucial importance in order to achieve such optimization. LÄS MER

  2. 2. A Deep Learning Based Approach to Object Recognition from LiDAR Data Along Swedish Railroads

    Master-uppsats, KTH/Fastigheter och byggande

    Författare :Egil Morast; [2022]
    Nyckelord :Deep learning; DGCNN; LiDAR; Object recognition; Railroad; Automatisation; Sweden; Point cloud; Djupinlärning; DGCNN; LiDAR; Objektigenkänning; Järnväg; Automatisering; Sverige; Punktmoln;

    Sammanfattning : Malfunction in the overhead contact line system is a common cause of disturbances in the train traffic in Sweden. Due to the preventive methods being inefficient, the Swedish Transport Administration has stated the need to develop the railroad maintenance services and has identified Artificial Intelligence (AI) as an important tool for this undertaking. LÄS MER

  3. 3. Modeling of a Hydraulic Rock Drill for Condition Monitoring

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Adam Kagebeck; Mahdi Najafi; [2022]
    Nyckelord :Condition Monitoring System; Hydraulic Rock Drill; Diagnostic; Modeling; State Space Model;

    Sammanfattning : This thesis aims to investigate the possibility of using a mathematical model to detect several common faults in a hydraulic rock drill. To this end, a parameterized state space model of the hydraulic drill, which simulate its behavior, is created. LÄS MER

  4. 4. Relationen mellan ledarskap och organisationskultur i krishantering: En empirisk studie av Crisis Response Leadership Matrix

    Kandidat-uppsats, Högskolan i Gävle/Företagsekonomi

    Författare :David Agius; Andreas Jansson; [2022]
    Nyckelord :Crisis; leadership; leadership competencies; crisis management; organizational culture.;

    Sammanfattning : Syfte: Organisationer är beroende av en ledare i krissituationer, men hur behöver ledarskapet anpassas till den rådande organisationskulturen? Tidigare forskning har presenterat en modell Crisis Response Leadership Matrix (CRLM) för att matcha rätt ledare för given organisationskultur. Syftet med denna studie är att genom empiriska observationer utveckla CRLM modellens spektrum. LÄS MER

  5. 5. Optimization and Bayesian Modeling of Road Distance for Inventory of Potholes in Gävle Municipality

    Kandidat-uppsats, Stockholms universitet/Statistiska institutionen

    Författare :Timothy Rafael Lindblom; Oskar Tollin; [2022]
    Nyckelord :Traveling salesman problem; Bayesian inference; Simulated annealing; Nearest neighbour algorithm; Markov Chain Monte Carlo; MCMC; Potholes; Haversine formula; Metropolis-Hastings; Posterior predictive distribution; Handelsresande problemet; bayesiansk inferens; simulerad anlöpning; nearest neighbour algorithm; Markov Chain Monte Carlo; MCMC; potthål; storcirkelavstånd; Metropolis-Hastings; posterior predictive distribution;

    Sammanfattning : Time management and distance evaluation have long been a difficult task for workers and companies. This thesis studies 6712 pothole coordinates in Gävle municipality, and evaluates the minimal total road distance needed to visit each pothole once, and return to an initial pothole. LÄS MER