Sökning: "Anomaly"

Visar resultat 11 - 15 av 569 uppsatser innehållade ordet Anomaly.

1. 11. Exploring the Idiosyncratic Volatility Anomaly in the Swedish Stock Market: An Empirical Analysis of its Impact on Returns

   Master-uppsats, Göteborgs universitet/Graduate School

   Författare :Anton Ahlqvist; Walter Uong; [2023-06-29]
   Nyckelord :;

   Sammanfattning : We examine the cross-sectional relationship between idiosyncratic volatility relative to the Fama-French three factor model and expected stock returns. We find that portfolios containing the firms with the lowest idiosyncratic risk offers excess returns in relation to the prediction of the Fama-French three factor model, while those with the highest idiosyncratic risk do not. LÄS MER

3. 12. Neural Network-based Anomaly Detection Models and Interpretability Methods for Multivariate Time Series Data

   Master-uppsats, Stockholms universitet/Institutionen för data- och systemvetenskap

   Författare :Deepthy Prasad; Swathi Hampapura Sripada; [2023]
   Nyckelord :multivariate - time series; anomaly detection; neural networks; autoencoders; interpretability; counterfactuals;

   Sammanfattning : Anomaly detection plays a crucial role in various domains, such as transportation, cybersecurity, and industrial monitoring, where the timely identification of unusual patterns or outliers is of utmost importance. Traditional statistical techniques have limitations in handling complex and highdimensional data, which motivates the use of deep learning approaches. LÄS MER

4. 13. ANOMALY DETECTION FOR INDUSTRIAL APPLICATIONS USING COMMODITY HARDWARE

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

   Författare :John Moberg; Jonathan Widén; [2023]
   Nyckelord :Computer Vision; Anomaly Detection; Single Board Computer; Embedded systems;

   Sammanfattning : As the Automotive industry is heavily regulated from a quality point of view, excellence in pro-duction is obligatory. Due to the fact that removing human error from humans is impossible, new solutions must be found. LÄS MER

5. 14. Literature review on trustworthiness of Signature-Based and Anomaly detection in Wireless Networks

   Kandidat-uppsats, Stockholms universitet/Institutionen för data- och systemvetenskap

   Författare :Josephine Spångberg; Vainius Mikelinskas; [2023]
   Nyckelord :Cyber threats; Malware; Cyber attacks; Signature Based Detection; Anomaly Detection; Cyber defense; Sophisticated attacks; Modern cyberattacks; malware detection in wireless network; IoT;

   Sammanfattning : The internet has become an essential part of most people's daily lives in recent years, and as more devices connect to the internet, the risk of cyber threats increases dramatically. As malware becomes more sophisticated, traditional security prevention measures are becoming less effective at defending from cyber attacks. LÄS MER

7. 15. DISTRIBUTED ARTIFICIAL INTELLIGENCE FOR ANOMALY DETECTION IN A MODULAR MANUFACTURING ENVIRONMENT

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

   Författare :Hana Hodzic; [2023]
   Nyckelord :;

   Sammanfattning : This thesis investigates anomaly detection and classification in a simulated modular manufacturingenvironment using Machine Learning algorithm Random Forest. This algorithm is tested on a localcomputer and an embedded device, specifically the Raspberry PI. LÄS MER