Sökning: "Aggregating"

Visar resultat 21 - 25 av 99 uppsatser innehållade ordet Aggregating.

  1. 21. Precipitation Nowcasting using Deep Neural Networks

    Master-uppsats, KTH/Fysik

    Författare :Valter Fallenius; [2022]
    Nyckelord :Deep Neura Networks; Artificial Intelligence; Meteorology; Precipitationa Nowcasting; Djupa neurala nätverk; artificiell intelligens; nederbördsprognoser; meteorologi;

    Sammanfattning : Deep neural networks (DNNs) based on satellite and radar data have shown promising results for precipitation nowcasting, beating physical models and optical flow for time horizons up to 8 hours. “MetNet”, developed by Google AI, is a 225 million parameter DNN combining three different types of architectures that was trained on satellite and radar data over the United States. LÄS MER

  3. 22. EBSD Investigation of High-Temperature Magnetite from Apatite-Iron-Oxide Deposits: Implications for the Formation of Giant Kiruna-Type Deposits

    Master-uppsats, Uppsala universitet/Mineralogi, petrologi och tektonik

    Författare :Jens Henriksson; [2022]
    Nyckelord :Kiruna-type deposit; electron backscattered diffraction; crystal settling; Fe-O systematics; crystal alignment;

    Sammanfattning : European iron production is to a large extent dependant on massive Kiruna type apatite-iron ore deposits. In this contribution, high-temperature magnetite samples from apatite-iron-oxide deposits are investigated by means of Electron Backscattered Diffraction. However, the origin of Kiruna-type deposits is still unresolved. LÄS MER

  4. 23. The Optimal Bidding Strategy of a Wind-Biogas-Hydrogen Hybrid System

    Magister-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Xudong Liu; [2022]
    Nyckelord :bidding strategy; wind; biogas; hydrogen; hybrid system; two-price settlement;

    Sammanfattning : The growing penetration of variable renewable energy has brought all-round challenges to the current power system, no matter for the grid infrastructure, market design or the power producers. The positive and negative externalities caused by the market participators are to be finer priced and a significant amount of flexibility is to be added to the system, in order to counter these problems and facilitate energy transition. LÄS MER

  5. 24. Decomposing the Consumption Response to Monetary Policy Shocks in Australia

    D-uppsats, Handelshögskolan i Stockholm/Institutionen för nationalekonomi

    Författare :Jessica Geraghty; [2022]
    Nyckelord :Consumption; Household heterogeneity; Income distribution; Marginal propensity to consume; Monetary policy transmission;

    Sammanfattning : Does monetary policy affect households differently depending on their position on the income distribution? If so, what drives the differences? This paper attempts to answer these questions by decomposing changes in consumption following a monetary policy shock into several direct and indirect channels of transmission. Although direct channels of transmission are the most important in traditional representative agent models, the indirect channels are dominant when households are heterogeneous. LÄS MER

  7. 25. Data Build Tool (DBT) Jobs in Hopsworks

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

    Författare :Zidi Chen; [2022]
    Nyckelord :feature engineering; Structured Query Language SQL ; funktionsteknik; strukturerat frågespråk SQL ;

    Sammanfattning : Feature engineering at scale is always critical and challenging in the machine learning pipeline. Modern data warehouses enable data analysts to do feature engineering by transforming, validating and aggregating data in Structured Query Language (SQL). LÄS MER