Essays about: "multivariate data"

Showing result 16 - 20 of 410 essays containing the words multivariate data.

  1. 16. The Application of Multivariate Statistical Process Control during Industrial Hot Isostatic Pressing Sintering Processes : A Case study at Seco Tools AB

    University essay from Luleå tekniska universitet/Institutionen för ekonomi, teknik, konst och samhälle

    Author : Karl Ericsson; [2023]
    Keywords : Multivariate statistical process control; Batch processes; Quality prediction;

    Abstract : This Master's thesis focuses on improving the understanding and monitoring of the Hot Isostatic Pressing (HIP) sintering process used by Seco Tools AB to manufacture cemented carbides for cutting tools. While essential for producing cutting tools with superior hardness and toughness the HIP sintering process introduces a complex relationship between the selected process parameters and the achieved materials properties. READ MORE

  3. 17. Forecasting Swedish FCR-D Prices using Penalized Multivariate Time Series Techniques

    University essay from Lunds universitet/Nationalekonomiska institutionen; Lunds universitet/Statistiska institutionen

    Author : Franz Lennart Wunderlich; Sebastian Brugger; [2023]
    Keywords : Swedish Energy Market; Multivariate Time-Series; Lasso; Forecasting; Noise Filtering; Business and Economics;

    Abstract : The Swedish energy market is becoming more and more sustainable, with an increasing volume and number of diversified energy sources being continuously added to the mix. To stabilize the grid frequency, auctions are held to offer energy providers incentives to produce or consume energy on short notice. READ MORE

  4. 18. Anomaly Detection in the EtherCAT Network of a Power Station : Improving a Graph Convolutional Neural Network Framework

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

    Author : Niklas Barth; [2023]
    Keywords : Unsupervised Learning; Multivariate Time Series; Graph Convolutional Neural Networks; Anomaly Detection; Industrial Control System; EtherCAT; Power Station; Electricity Grid;

    Abstract : In this thesis, an anomaly detection framework is assessed and fine-tuned to detect and explain anomalies in a power station, where EtherCAT, an Industrial Control System, is employed for monitoring. The chosen framework is based on a previously published Graph Neural Network (GNN) model, utilizing attention mechanisms to capture complex relationships between diverse measurements within the EtherCAT system. READ MORE

  5. 19. The Effects of Low-Quality University Education on Young Graduated Labour Outcomes: The Peruvian Experience

    University essay from Lunds universitet/Ekonomisk-historiska institutionen

    Author : Adriana Cristina Raygada Mimbela; [2023]
    Keywords : quality of university education; graduated labour outcomes; Peruvian youth; National Survey of Households ENAHO ; Business and Economics; Social Sciences;

    Abstract : This thesis examines the relationship between university education quality and young graduates' labour outcomes. The thesis employs a micro-level data analysis based on the National Survey of Households (ENAHO) and information from the National Board of University Education (SUNEDU). READ MORE

  6. 20. Air quality prediction in metropolitan areas using deep learning methods

    University essay from Stockholms universitet/Institutionen för data- och systemvetenskap

    Author : Augustin Ionut Ionascu; [2023]
    Keywords : air quality; forecasting; time-series; univariate; multivariate; multi-step; Attention; Transformer;

    Abstract : The rapid growth of the world's urban population shows that people are increasingly moving to cities. In recent decades, the frequent occurrence of smog caused by increasing industrialization has brought environmental pollution to record highs. READ MORE