Sökning: "Kohonen"

Visar resultat 1 - 5 av 13 uppsatser innehållade ordet Kohonen.

  1. 1. Geophysical Data from Norrbotten, Sweden - Evidence for the Presence of a Crustal Scale Fault?

    Master-uppsats, Luleå tekniska universitet/Geovetenskap och miljöteknik

    Författare :Jimmy Markström; [2022]
    Nyckelord :Self-Organizing Maps; Magnetic Anomaly; Radioisotopes; Geological Faults;

    Sammanfattning : The method of combining multiple geophysical, geological, or geochemical datasets can reveal patterns of otherwise hidden features in the Earth’s crust. This may aid in geological mapping, locating economic mineral deposits and for general anomaly/feature detection. LÄS MER

  3. 2. Sammanbrott i familjehemsvård : En kvalitativ intervju- och vinjettstudie om barnsekreterares erfarenheter och upplevelser av barnperspektivet och barnets perspektiv

    Kandidat-uppsats, Högskolan i Gävle/Avdelningen för socialt arbete och kriminologi

    Författare :Paula Hedenström Quiroz; Sara Kohonen; [2021]
    Nyckelord :child perspective; child’s perspective; child welfare social worker; foster care; placement breakdown; barnets perspektiv; barnperspektiv; barnsekreterare; familjehemsvård; sammanbrott;

    Sammanfattning : Barn i familjehemsvård har rätt till stabil vård. Trots detta blir familjehemsvården inte alltid kontinuerlig och resulterar i sammanbrott, vilket försätter barnet i en ännu mer utsatt situation. LÄS MER

  4. 3. Clustering of Financial Account Time Series Using Self Organizing Maps

    Master-uppsats, KTH/Matematisk statistik

    Författare :Magnus Nordlinder; [2021]
    Nyckelord :Kohonen; financial accounts; self organizing maps; clustring; time series; Kohonen; finansiella konton; klustring; tidsserier;

    Sammanfattning : This thesis aims to cluster financial account time series by extracting global features from the time series and by using two different dimensionality reduction methods, Kohonen Self Organizing Maps and principal component analysis, to cluster the set of the time series by using K-means. The results are then used to further cluster a set of financial services provided by a financial institution, to determine if it is possible to find a set of services which coincide with the time series clusters. LÄS MER

  5. 4. Classify part of day and snow on the load of timber stacks : A comparative study between partitional clustering and competitive learning

    Uppsats för yrkesexamina på avancerad nivå, Mittuniversitetet/Institutionen för informationssystem och –teknologi

    Författare :My Nordqvist; [2021]
    Nyckelord :Machine Learning ML ; Unsupervised Learning; Cluster Analysis; Partitional Clustering; Competitive Learning; Dimensionality Reduction; Principal Component Analysis PCA ; K-means; Kohonen Self-Organizing Map SOM ; Timber;

    Sammanfattning : In today's society, companies are trying to find ways to utilize all the data they have, which considers valuable information and insights to make better decisions. This includes data used to keeping track of timber that flows between forest and industry. LÄS MER

  7. 5. Using Self-Organizing Maps to Identify Operational Risk

    Master-uppsats, Lunds universitet/Matematisk statistik

    Författare :Lukas Ljungblom; Jonatan Berggren; [2018]
    Nyckelord :Self-organizing Map; Machine Learning; Neural Network; Clustering; Operational Risk; Audit Change; Mathematics and Statistics;

    Sammanfattning : In recent years, the awareness and concern for operational risk in financial institutions have increased, and several disastrous events in the last two decades been caused by human error. With this, the regulatory demands have increased on the financial institutions to control operational risk. LÄS MER