Sökning: "categorical features"

Visar resultat 1 - 5 av 19 uppsatser innehållade orden categorical features.

  1. 1. Eurasianism in Sweden - the reception of Dugin's theories in Swedish identitarian forums

    Master-uppsats, Lunds universitet/Sociologi; Lunds universitet/Sociologiska institutionen

    Författare :Jenny Carleheden; [2023]
    Nyckelord :Alexander Dugin; Swedish identitarianism; Eurasianism; nationalism; ontological security; Social Sciences;

    Sammanfattning : With Russia becoming increasingly hostile towards the West with the culmination of the full-scale invasion into Ukraine in February of 2022, the rhetoric of Putin has been linked to the philosophy of a geopolitically aggressive right-wing sociologist called Alexander Dugin. With several previous statements pertaining to the delegitimization of the sovereignty of Europe Dugin has previously argued for the Finlandization of the continent as a way for Russia to reactivate its imperial past. LÄS MER

  3. 2. Restaurant Daily Revenue Prediction : Utilizing Synthetic Time Series Data for Improved Model Performance

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för beräkningsvetenskap

    Författare :Stella Jarlöv; Anton Svensson Dahl; [2023]
    Nyckelord :demand forecasting; data augmentation; time series data; machine learning; restaurant industry; generative adversarial networks; TimeGAN; XGBoost;

    Sammanfattning : This study aims to enhance the accuracy of a demand forecasting model, XGBoost, by incorporating synthetic multivariate restaurant time series data during the training process. The research addresses the limited availability of training data by generating synthetic data using TimeGAN, a generative adversarial deep neural network tailored for time series data. LÄS MER

  4. 3. EVALUATING PERFORMANCE OF GENERATIVE MODELS FOR TIME SERIES SYNTHESIS

    Master-uppsats, Mälardalens universitet/Akademin för innovation, design och teknik

    Författare :Muhammad Junaid Haris; [2023]
    Nyckelord :GAN; Generative Adversarial Network; VQ-VAE; Vector Quantized Variational AutoEncoder; AutoEncoder; VAE; Time Series; Synthesizing; Data Synthesis;

    Sammanfattning : Motivated by successes in the image generation domain, this thesis presents a novel Hybrid VQ-VAE (H-VQ-VAE) approach for generating realistic synthetic time series data with categorical features. The primary motivation behind this work is to address the limitations of existing generative models in accurately capturing the underlying structure and patterns of time series data, especially when dealing with categorical features. LÄS MER

  5. 4. The Dissatisfaction of Utopia in Iain M. Banks's Culture Novels

    Magister-uppsats, Stockholms universitet/Engelska institutionen

    Författare :Björn Carlsten; [2022]
    Nyckelord :utopia; science-fiction; Iain Banks; the Culture; teaching;

    Sammanfattning : The Culture is a utopian civilization that features in the science-fiction novels of Iain M. Banks that has some claim to be as comprehensively satisfactory and universal in its appeal as possible. LÄS MER

  7. 5. Forecasting Efficiency in Cryptocurrency Markets : A machine learning case study

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

    Författare :Erik Persson; [2022]
    Nyckelord :Cryptocurrencies; Financial time-series; Multi step-ahead forecasting; Machine Learning; Feature selection; Kryptovalutor; Finansiella tidsserier; Flerstegsprognoser; Maskininlärning; variabelselektion;

    Sammanfattning : Financial time-series are not uncommon to research in an academic context. This is possibly not only due to its challenging nature with high levels of noise and non-stationary data, but because of the endless possibilities of features and problem formulations it creates. LÄS MER