Essays about: "Wavelet analysis"

Showing result 16 - 20 of 59 essays containing the words Wavelet analysis.

  1. 16. Automatic segmentation of articular cartilage in arthroscopic images using deep neural networks and multifractal analysis

    University essay from Linköpings universitet/Institutionen för medicinsk teknik

    Author : Mikael Ångman; Hampus Viken; [2020]
    Keywords : Convolutional neural networks; multifractal analysis; arthroscopy; semantic segmentation; wavelet leaders; wavelet p-leaders;

    Abstract : Osteoarthritis is a large problem affecting many patients globally, and diagnosis of osteoarthritis is often done using evidence from arthroscopic surgeries. Making a correct diagnosis is hard, and takes years of experience and training on thousands of images. READ MORE

  3. 17. The Causal Relationships Between ESG and Financial Asset Classes : A multiple investment horizon wavelet approach of the non-linear directionality

    University essay from Linköpings universitet/Nationalekonomi

    Author : Emil Andersson; Mahim Hoque; [2019]
    Keywords : ESG; Non-linear; Granger causality; Wavelet; Return performance; Directionality; Responsible investing; Sustainability; DCC-GARCH; VAR; Climate; Asset class; Investment horizon;

    Abstract : This thesis investigates if Environmental, Social and Governance (ESG) investments can be considered as an independent asset class. As ESG and responsible investing has increased substantially in recent years, responsible investments have entered the portfolios with other asset classes too. READ MORE

  4. 18. Automatic post-fault analysis based on disturbance data stored in substation devices : Approach towards the preventive maintenance

    University essay from KTH/Hälsoinformatik och logistik

    Author : Riad Yalda; Miroslav Urosevic; [2019]
    Keywords : COMTRADE file; preventive maintenance; relay protection; automatic post-fault analysis; IEC 61850; wavelet transform.; COMTRADE filer; förebyggande underhåll; reläskydd; automatisk efterfelsanalys; IEC 61850; wavelettransform.;

    Abstract : This report studies the possibilities of minimizing unplanned maintenance work and improving the availability of power supply by enabling preventive maintenance in power systems, without having to make additional investments in the existing systems. This was done using information from COMTRADE files (disturbance recording files) that are created in the event of a fault in the power system. READ MORE

  5. 19. Waveform clustering - Grouping similar power system events

    University essay from Mälardalens högskola/Akademin för innovation, design och teknik

    Author : Therése Eriksson; Mohamed Mahmoud Abdelnaeim; [2019]
    Keywords : Unsupervised learning; clustering; multivariate time-series data; discrete wavelet transform; power transformer;

    Abstract : Over the last decade, data has become a highly valuable resource. Electrical power grids deal with large quantities of data, and continuously collect this for analytical purposes. READ MORE

  6. 20. A Wavelet-Based Surface Electromyogram Feature Extraction for Hand Gesture Recognition

    University essay from Mälardalens högskola/Akademin för innovation, design och teknik

    Author : Axel Forsberg; [2018]
    Keywords : ;

    Abstract : The research field of robotic prosthetic hands have expanded immensely in the last couple of decades and prostheses are in more commercial use than ever. Classification of hand gestures using sensory data from electromyographic signals in the forearm are primary for any advanced prosthetic hand. READ MORE