Essays about: "autoencoder"

Showing result 1 - 5 of 126 essays containing the word autoencoder.

  1. 1. Insurance Fraud Detection using Unsupervised Sequential Anomaly Detection

    University essay from Linköpings universitet/Institutionen för datavetenskap

    Author : Anton Hansson; Hugo Cedervall; [2022]
    Keywords : Insurance Fraud Detection; Anomaly Detection; Long Short-Term Memory Networks LSTM ; Unsupervised Learning; Autoencoder AE ; Variational Autoencoder VAE ; Interpretable Machine Learning; Feature Engineering; Feature Selection; Feature Importance;

    Abstract : Fraud is a common crime within the insurance industry, and insurance companies want to quickly identify fraudulent claimants as they often result in higher premiums for honest customers. Due to the digital transformation where the sheer volume and complexity of available data has grown, manual fraud detection is no longer suitable. READ MORE

  2. 2. Iterative full-genome phasing and imputation using neural networks

    University essay from Uppsala universitet/Människans evolution

    Author : Lotta Rydin; [2022]
    Keywords : Machine learning; Genotype data; U-Net; Convolutional neural networks;

    Abstract : In this project, a model based on a convolutional neural network have been developed with the aim of imputing missing genotype data. This model was based on an already existing autoencoder that was modified into a U-Net structure. The network was trained and used iteratively with the intention that the result would improve in each iteration. READ MORE

  3. 3. Nonlinear Methods of Aerodynamic Data-driven Reduced Order Modeling

    University essay from Uppsala universitet/Avdelningen för beräkningsvetenskap

    Author : Arvid Forsberg; [2022]
    Keywords : machine learning; aerodynamics; autoencoder; kernel transformation; principal component analysis; nonlinear; regression; modeling; surrogate model; reduced order modeling; neural network;

    Abstract : Being able to accurately approximate outputs of computationally expensive simulations for arbitrary input parameters, also called missing points estimation, is central in many different areas of research and development with applications ranging from uncertainty propagation to control system design to name a few. This project investigates the potential of kernel transformations and nonlinear autoencoders as methods of improving the accuracy of the proper orthogonal decomposition method combined with regression. READ MORE

  4. 4. Anomaly Detection in Riding Behaviours : Using Unsupervised Machine Learning Methods on Time Series Data from Micromobility Services

    University essay from Umeå universitet/Institutionen för matematik och matematisk statistik

    Author : Indra Hansson; Julia Congreve Lifh; [2022]
    Keywords : Unsupervised Machine Learning; Sensor Data; Anomaly Detection; Micromobility; Övervakad Maskininlärning; Sensordata; Anomalidetektering; Mikromobilitet;

    Abstract : The global micromobility market is a fast growing market valued at USD 40.19 Billion in 2020. As the market grows, it is of great importance for companies to gain market shares in order to stay competitive and be the first choice within micromobility services. This can be achieved by, e. READ MORE

  5. 5. Representation learning for single cell morphological phenotyping

    University essay from Umeå universitet/Institutionen för fysik

    Author : Andreas Nenner; [2022]
    Keywords : Deep learning; Image-based profiling;

    Abstract : Preclinical research for developing new drugs is a long and expensive procedure. Experiments relying on image acquisition and analysis tend to be low throughput and use reporter systems that may influence the studied cells. READ MORE