Sökning: "Knowledge Discovery from Data"

Visar resultat 1 - 5 av 57 uppsatser innehållade orden Knowledge Discovery from Data.

  1. 1. Decay Chains of Fast Alpha Emitters in the Actinide Region

    Magister-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Partikel- och kärnfysik

    Författare :Tanvir Sayed; [2024]
    Nyckelord :alpha decay; alpha emissions; fine structure; decay chain; decay scheme; alpha spectrometry; actinide; nucleus; nuclear structure; nuclear states; energy levels; uranium isotopes; U310 experiment; parasitic runs; decay station; TASISpec ; moving window deconvolution; digitisers; alpha-gamma coincidence; 221-Th decay; fine structure of alpha decay to 217-Ra; GSI; Gamow s theory; Geiger-Nuttall; chain search; short half-lives; Physics and Astronomy;

    Sammanfattning : With the advent of increasingly advanced spectroscopic instruments after the turn of the century, it has become accessible to unravel the structure of instantly ‘vanishing’ nuclei, with lifetimes as short as 1 μs, and responsible for pile-up events in analog electronics. Experimental data has been recorded by the Nuclear Structure Group at Lund University for 48Ca/50Ti + nat. LÄS MER

  3. 2. Hur hanteras missbruksproblem på arbetsplatsen? En kvalitativ studie om HR- och personalchefers strategier att hantera personal med missbruksproblematik

    Kandidat-uppsats, Göteborgs universitet / / Institutionen för sociologi och arbetsvetenskap

    Författare :Christian Svensson; Selma Mattsson; [2023-09-13]
    Nyckelord :education; rehabilitation; prevention; substance abuse problem;

    Sammanfattning : The purpose of this study was to investigate what strategies HR and managers with staff responsibilities use to detect, rehabilitate and prevent alcohol- and drug abuse in the workplace. Furthermore, if these strategies differ when employees work remotely or from the office. LÄS MER

  4. 3. Using Machine Learning to Optimize Near-Earth Object Sighting Data at the Golden Ears Observatory

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

    Författare :Laura Murphy; [2023]
    Nyckelord :Near-Earth Object Detection; Machine Learning; Deep Learning; Visual Transformers;

    Sammanfattning : This research project focuses on improving Near-Earth Object (NEO) detection using advanced machine learning techniques, particularly Vision Transformers (ViTs). The study addresses challenges such as noise, limited data, and class imbalance. LÄS MER

  5. 4. Exploring information security culture within Swedish municipalities : A qualitative study

    Master-uppsats, Högskolan i Skövde/Institutionen för informationsteknologi

    Författare :Haydar Ameri; [2023]
    Nyckelord :Municipality; security awareness; security culture; information security; cybersecurity;

    Sammanfattning : The human aspect in the context of security has been a well-debated topic over the last two decades among researchers and practitioners. It has been recognized that technology alone cannot provide full protection, but should be combined with information security culture. LÄS MER

  7. 5. Neural Networks for Predictive Maintenance on Highly Imbalanced Industrial Data

    Master-uppsats, Stockholms universitet/Institutionen för data- och systemvetenskap

    Författare :Oscar Montilla Tabares; [2023]
    Nyckelord :Class Imbalance; Cost Sensitivity; Cost-Sensitive Learning; Focal Loss; Binary Classification; Machine Learning; Deep Learning;

    Sammanfattning : Preventive maintenance plays a vital role in optimizing industrial operations. However, detecting equipment needing such maintenance using available data can be particularly challenging due to the class imbalance prevalent in real-world applications. LÄS MER