Essays about: "arcs"

Showing result 16 - 20 of 36 essays containing the word arcs.

  1. 16. Dynamic Programming Algorithms for Semantic Dependency Parsing

    University essay from Linköpings universitet/Interaktiva och kognitiva system

    Author : Nils Axelsson; [2017]
    Keywords : semantic dependency parsing; machine learning; parsing; logic; deduction system; crossing edges; SemEval; coverage; crossing arcs; graph; graph class; non-crossing; QAC; quartic; acyclic; semantisk dependensparsning; maskininlärning; parsning; logik; deduktionssystem; korsande bågar; SemEval; täckning; korsande kanter; graf; grafklass; ickekorsande; QAC; kvartiskt; acykliskt;

    Abstract : Dependency parsing can be a useful tool to allow computers to parse text. In 2015, Kuhlmann and Jonsson proposed a logical deduction system that parsed to non-crossing dependency graphs with an asymptotic time complexity of O(n3), where “n” is the length of the sentence to parse. READ MORE

  3. 17. Utilizing the Degrees of Freedom in Radiation Therapy Optimization

    University essay from KTH/Optimeringslära och systemteori

    Author : Henrik Olsson; [2017]
    Keywords : ;

    Abstract : The development of advanced software for radiation therapy treatment has had a significant role in the last decades’ improvements in cancer treatment. By optimizing the radiation dose given to each patient, the probability of a successful treatment increases. READ MORE

  4. 18. Design and Implementation of Circle Fitting on Largely Incomplete Circular Objects

    University essay from Mittuniversitetet/Avdelningen för elektronikkonstruktion

    Author : Sohran Eliassi Sarzali; [2017]
    Keywords : Circle fitting; Hyper fit;

    Abstract : In many applications, e.g. medical, industrial and military systems, it is of interest to fit a circle to scattered data points belonging to a complete or incomplete circular arc. READ MORE

  5. 19. Effect of bladder volume changes and verification of CTV on CBCT for rectal cancer patients

    University essay from Lunds universitet/Medicinsk strålningsfysik, Lund; Lunds universitet/Sjukhusfysikerutbildningen

    Author : Lina Andersson; [2016]
    Keywords : Medicine and Health Sciences;

    Abstract : Background and purpose: During radiotherapy, rectal cancer patients show inter-fractional internal motion that effects the delivered dose distribution. The purpose of this work is to study I) the inter-fractional bladder volume change, II) the effect of bladder volume change on bowel dose distribution, III) the effect of bladder optimization on the relationship between bladder volume and bowel dose and IV) the possibilities and difficulties of validating the clinical target volume (CTV) using a surrogate on cone-beam computed tomography (CBCT) scans. READ MORE

  6. 20. Flattening filter free volumetric modulated arc therapy for extreme hypofractionation of prostate cancer - Decreasing the treatment time and reducing the impact of prostate motion

    University essay from Lunds universitet/Sjukhusfysikerutbildningen; Lunds universitet/Medicinsk strålningsfysik, Lund

    Author : Minna Ahlström; [2015]
    Keywords : Medicine and Health Sciences;

    Abstract : Purpose: This work examined the feasibility of flattening filter free (FFF) volumetric modulated arc therapy (VMAT) for extreme hypofractionation of prostate cancer. The aim was to investigate the potential gain in treatment time per fraction for extreme hypofractionation of prostate cancer, while preserving or improving the treatment plan quality and radiation delivery quality. READ MORE