Essays about: "permutation"

Showing result 21 - 25 of 52 essays containing the word permutation.

  1. 21. Counting Double-Descents and Double-Inversions in Permutations

    University essay from Mälardalens högskola/Akademin för utbildning, kultur och kommunikation

    Author : Jonas Boberg; [2021]
    Keywords : Combinatorics; Permutations; Permutation Statistics; Descent; Inversion;

    Abstract : In this paper, new variations of some well-known permutation statistics are introduced and studied. Firstly, a double-descent of a permutation π is defined as a position i where πi ≥ 2πi+1. By proofs by induction and direct proofs, recursive and explicit expressions for the number of n-permutations with k double-descents are presented. READ MORE

  3. 22. Machine Learning Applied to Reach Classification in a Northern Sweden Catchment

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Mariana dos Santos Toledo Busarello; [2021]
    Keywords : machine learning; geomorphology; random forest; channel type;

    Abstract : An accurate fine resolution classification of river systems positively impacts the process of assessment and monitoring of water courses, as stressed by the European Commission’s Water Framework Directive. Being able to attribute classes using remotely obtained data can be advantageous to perform extensive classification of reaches without the use of field work, with some methods also allowing to identify which features best described each of the process domains. READ MORE

  4. 23. The Impact of the COVID-19 Lockdown on the Urban Air Quality: A Machine Learning Approach.

    University essay from Högskolan Dalarna/Institutionen för information och teknik

    Author : Srinivas Bobba; [2021]
    Keywords : Covid-19; air pollutants; Lockdown; AVOVA; Permutation Test; Machine Learning; feature importance.;

    Abstract : ‘‘SARS-CoV-2’’ which is responsible for the current pandemic of COVID-19 disease was first reported from Wuhan, China, on 31 December 2019. Since then, to prevent its propagation around the world, a set of rapid and strict countermeasures have been taken. READ MORE

  5. 24. Improving Brain Tumor Segmentation using synthetic images from GANs

    University essay from Linköpings universitet/Statistik och maskininlärning

    Author : Aashana Nijhawan; [2021]
    Keywords : Image segmentation; Generative Adversarial Networks; GANs; Computer Vision; synthetic images; generator; discriminator; uncertainty estimation; deep neural networks; U-net; PGGAN;

    Abstract : Artificial intelligence (AI) has been seeing a great amount of hype around it for a few years but more so now in the field of diagnostic medical imaging. AI-based diagnoses have shown improvements in detecting the smallest abnormalities present in tumors and lesions. This can tremendously help public healthcare. READ MORE

  6. 25. Estimating Football Position from Context

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

    Author : Lucas Queiroz Gongora; [2021]
    Keywords : Transformer network; Inception time network; Time series; Tracking data; Permutation-invariance.; Transformer-nätverket; Inception Time nätverket; Tidsserier; spårningsdata; Permutation-invarians.;

    Abstract : Tracking algorithms provide the model to recognize objects’ motion in the past. Moreover, applied to an artificial intelligence algorithm, these algorithms allow, to some degree, the capacity to forecast the future position of an object. READ MORE