Essays about: "Inverse Problem"

Showing result 1 - 5 of 61 essays containing the words Inverse Problem.

  1. 1. Gamma Knife treatment planning with new degrees of freedom

    University essay from KTH/Optimeringslära och systemteori

    Author : Emil Norell; [2019]
    Keywords : Stereotactic radiosurgery; Leksell Gamma Knife®; inverse planning; clustering; optimization; column generation; Stereotaktisk radiokirurgi; strålkniven; inversplanering; klustring; optimering; kolumn-generering;

    Abstract : The Leksell Gamma Knife® is an instrument designed for high precision treatment of tumours and lesions located in the brain and upper spine. Today, the radioactive cobalt-60 sources can only move linearly along the radiation unit, but the machine could be modified to include rotational motion as well. READ MORE

  2. 2. Domain similarity metrics for predicting transfer learning performance

    University essay from Linköpings universitet/Interaktiva och kognitiva system

    Author : Jesper Bäck; [2019]
    Keywords : nlp.natural language processing; machine learning; transfer learning; similarity metrics; similarity; predict; performance;

    Abstract : The lack of training data is a common problem in machine learning. One solution to thisproblem is to use transfer learning to remove or reduce the requirement of training data.Selecting datasets for transfer learning can be difficult however. READ MORE

  3. 3. Diffusion MRI of Brain Tissue: Importance of Axonal Trajectory

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Kärnfysik

    Author : Jan Brabec; [2018]
    Keywords : dMRI; diffusion magnetic resonance; axonal trajectory; axonal geometry; undulations; modeling; axons; inverse problem; diffusion spectrum; time-dependent diffusion; Physics and Astronomy;

    Abstract : Obtaining microstructural information non-invasively on brain tissue remains a challenge. Diffusion magnetic resonance imaging (dMRI) is an imaging method that can provide such information. That includes geometrical considerations of nerve cells projections, axons, that are present in the white matter of the human brain. READ MORE

  4. 4. Understanding Customer Problems through Text Categorisation

    University essay from Uppsala universitet/Institutionen för informationsteknologi

    Author : Fatimah Ilona Asa Sabsono; [2018]
    Keywords : ;

    Abstract : Customer problem is a common problem that needs to be handled in the company that provides support to their customer. Abundant data that it produced makes it inefficient to do it manually, which makes machine learning as an approach that could help to solve it. READ MORE

  5. 5. Inverse Diffusion by Proximal Optimization with TensorFlow

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

    Author : Johan Sörell; Elias Ågeby; [2018]
    Keywords : ;

    Abstract : We present a method for implementing a large scale, proximal optimization algorithm in a machine learning framework to solve an inverse problem. The algorithm is based on a previously developed method for analyzing data of some imagebased immunoassays in the context of detecting diffused cells. READ MORE