Essays about: "Anomalous"

Showing result 1 - 5 of 147 essays containing the word Anomalous.

1. 1. Uncertainty Estimation in Radiation Dose Prediction U-Net

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

   Author : Frida Skarf; [2023]
   Keywords : Radiation dose prediction models; U-net; quantile regression; Monte Carlo Dropout; epistemic uncertainty estimation; aleatoric uncertainty estimation; Stråldospredicerande modeller; U-net; kvantilregression; Monte Carlo Dropout; epistemisk osäkerhetsskattning; aletorisk osäkerhetsskattning;

   Abstract : The ability to quantify uncertainties associated with neural network predictions is crucial when they are relied upon in decision-making processes, especially in safety-critical applications like radiation therapy. In this paper, a single-model estimator of both epistemic and aleatoric uncertainties in a regression 3D U-net used for radiation dose prediction is presented. READ MORE

3. 2. Knowledge distillation for anomaly detection

   University essay from Uppsala universitet/Institutionen för informationsteknologi

   Author : Nils Gustav Erik Pettersson; [2023]
   Keywords : ;

   Abstract : The implementation of systems and methodologies for time series anomaly detection holds the potential of providing timely detection of faults and issues in a wide variety of technical systems. Ideally, these systems are able to identify deviations from the normal behavior of systems even before any problems manifest, thus enabling proactive maintenance. READ MORE

4. 3. Finding Anomalous Energy ConsumersUsing Time Series Clustering in the Swedish Energy Market

   University essay from Umeå universitet/Institutionen för datavetenskap

   Author : Lukas Tonneman; [2023]
   Keywords : time-series analysis; clustering; electricity consumer clustering; anomaly detection; gaussian mixture model; hierarchical clustering;

   Abstract : Improving the energy efficiency of buildings is important for many reasons. There is a large body of data detailing the hourly energy consumption of buildings. This work studies a large data set from the Swedish energy market. READ MORE

5. 4. Unauthorised Session Detection with RNN-LSTM Models and Topological Data Analysis

   University essay from KTH/Matematik (Avd.)

   Author : Nazar Maksymchuk Netterström; [2023]
   Keywords : Recurrent Neural Network; Long-Short-Term-Memory; Topological Data Analysis; Session based data; Anomaly detection; Time-series analysis; Imbalanced data; Master thesis; Neurala nätverk; Topologisk data analys; Detektion av avvikelse; Sessionsbaserad data; Tidserieanalys; Inbalancerad data; Masteruppsats;

   Abstract : This thesis explores the possibility of using session-based customers data from Svenska Handelsbanken AB to detect fraudulent sessions. Tools within Topological Data Analysis are employed to analyse customers behavior and examine topological properties such as homology and stable rank at the individual level. READ MORE

6. 5. Unsupervised Anomaly Detection and Explainability for Ladok Logs

   University essay from Umeå universitet/Institutionen för datavetenskap

   Author : Mimmi Edholm; [2023]
   Keywords : machine learing; anomaly detection; ml;

   Abstract : Anomaly detection is the process of finding outliers in data. This report will explore the use of unsupervised machine learning for anomaly detection as well as the importance of explaining the decision making of the model. READ MORE