Essays about: "Cross validation"

Showing result 1 - 5 of 224 essays containing the words Cross validation.

  1. 1. All Negative on the Western Front: Analyzing the Sentiment of the Russian News Coverage of Sweden with Generic and Domain-Specific Multinomial Naive Bayes and Support Vector Machines Classifiers

    University essay from Uppsala universitet/Institutionen för lingvistik och filologi

    Author : David Michel; [2021]
    Keywords : sentiment analysis; news sentiment; text classification; cross-domain sentiment classification; domain specificity; domain-transfer problem; transfer learning; knowledge transfer; support vector machines; SVM; multinomial naive Bayes; Sweden; Aurora 17; Russia; Russian news; RT; Sputnik; cyberwarfare; influence campaign; disinformation; fake news; propaganda;

    Abstract : This thesis explores to what extent Multinomial Naive Bayes (MNB) and Support Vector Machines (SVM) classifiers can be used to determine the polarity of news, specifically the news coverage of Sweden by the Russian state-funded news outlets RT and Sputnik. Three experiments are conducted. READ MORE

  2. 2. Pre-planning of Individualized Ankle Implants Based on Computed Tomography - Automated Segmentation and Optimization of Acquisition Parameters

    University essay from KTH/Fysik

    Author : Matilda Engström Messén; Elvira Moser; [2021]
    Keywords : osteochondral lesions of the talus; computed tomography; U-net; convolutional neural network; dice coefficient; fotled; ledbrosk; osteochondral lesion of the talus; datortomografi; U-net; convolutional neuralt nätverk; dicekoefficient;

    Abstract : The structure of the ankle joint complex creates an ideal balance between mobility and stability, which enables gait. If a lesion emerges in the ankle joint complex, the anatomical structure is altered, which may disturb mobility and stability and cause intense pain. READ MORE

  3. 3. ESTIMATING AND EVALUATING THE PROBABILITY OF DEFAULT – A MACHINE LEARNING APPROACH

    University essay from Uppsala universitet/Statistiska institutionen

    Author : Andreas Hild; [2021]
    Keywords : ;

    Abstract : In this thesis, we analyse and evaluate classification models for panel credit risk data. Variables are selected based on results from recursive feature elimination as well as economic reasoning where the probability of default is estimated. READ MORE

  4. 4. Modelling the evolution of an ion beam through a 3 MV Pelletron accelerator

    University essay from Lunds universitet/Kärnfysik

    Author : Niek van Woudenberg; [2021]
    Keywords : accelerator modelling; ion-beam transport; Pelletron simulation; 3D simulation; cross-validation; Physics and Astronomy;

    Abstract : In this work simulations of the LIBAF Pelletron were performed to gain insight into the parameters that govern the machine operation and control. Three simulation packages: COMSOL, WARP and TURTLE/TRANSPORT were employed, and cross-validation of these software packages was performed by test-case simulations. READ MORE

  5. 5. Stickering of Food Products at IKEA – Improving a Process Through Learning from Others

    University essay from Lunds universitet/Teknisk logistik

    Author : John Nyqvist; Victoria Vernet; [2021]
    Keywords : Stickering; labelling; packaging information requirements; food supply chain; process maturity; Technology and Engineering;

    Abstract : Title: Stickering of Food Products at IKEA–Improving a Process Through Learning from Others; Increasing process maturity to ensure future performance Authors: John Nyqvist and Victoria Vernet Supervisors: Eva Berg, Department of Industrial Management and Logistics, Faculty of Engineering, Lund University Problem description: Stickering has been used at IKEA for a long time to create compliant food products on markets where volumes are too low. Low volumes make it economically challenging to create compliant artworks and to produce large enough batches to meet cost requirements. READ MORE