Essays about: "Latent variable optimization"

Found 4 essays containing the words Latent variable optimization.

  1. 1. Improving Change Point Detection Using Self-Supervised VAEs : A Study on Distance Metrics and Hyperparameters in Time Series Analysis

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Daniel Workinn; [2023]
    Keywords : Change point detection; Time series data; Segmentation; Machine learning; Data mining; Detektion av brytpunkter; Tidsseriedata; Segmentering; Maskininlärning; Datautvinning;

    Abstract : This thesis addresses the optimization of the Variational Autoencoder-based Change Point Detection (VAE-CP) approach in time series analysis, a vital component in data-driven decision making. We evaluate the impact of various distance metrics and hyperparameters on the model’s performance using a systematic exploration and robustness testing on diverse real-world datasets. READ MORE

  3. 2. Tackling Non-Stationarity in Reinforcement Learning via Latent Representation : An application to Intraday Foreign Exchange Trading

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Adriano Mundo; [2023]
    Keywords : Reinforcement Learning; Latent Representation; VAE; Non-Stationary; FQI; FX Trading; Förstärkningsinlärning; Latent representation; VAE; Icke-stationär; FQI; FX handel;

    Abstract : Reinforcement Learning has applications in various domains, but the typical assumption is of a stationary process. Hence, when this hypothesis does not hold, performance may be sub-optimal. READ MORE

  4. 3. Reconstruction of Hyperspectral Images Using Generative Adversarial Networks

    University essay from Linköpings universitet/Reglerteknik

    Author : Jacob Eek; [2021]
    Keywords : Coded aperture snapshot spectral imaging; CASSI; Raman; Raman spectroscopy; Explosive; Detection; Hyperspectral Image; HSI; Compressed sensing; Compressive Sensing; CS; Machine Learning; Reconstruction; Inverse problem; Generative Adversarial Network; GAN; CGAN; BEGAN; Latent variable optimization;

    Abstract : Fast detection and identification of unknown substances is an area of interest for many parties. Raman spectroscopy is a laser-based method allowing for long range no contact investigation of substances. READ MORE

  5. 4. Thermocline storage for concentrated solar power : Techno-economic performance evaluation of a multi-layered single tank storage for Solar Tower Power Plant

    University essay from KTH/Kraft- och värmeteknologi

    Author : Davide Ferruzza; [2015]
    Keywords : Thermocline storage; Concentrated solar power; CSP; thermal energy storage; techno-economic; multi-objective optimization;

    Abstract : Solar Tower Power Plants with thermal energy storage are a promising technology for dispatchable renewable energy in the near future. Storage integration makes possible to shift the electricity production to more profitable peak hours. READ MORE