Sökning: "Matthews correlation coefficient"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden Matthews correlation coefficient.

  1. 1. Optimising Machine Learning Models for Imbalanced Swedish Text Financial Datasets: A Study on Receipt Classification : Exploring Balancing Methods, Naive Bayes Algorithms, and Performance Tradeoffs

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för datavetenskap och medieteknik (DM)

    Författare :Li Ang Hu; Long Ma; [2023]
    Nyckelord :Imbalanced datasets; Swedish text financial datasets; Accuracy; Matthews correlation coefficient; Recall; Multinomial Naive Bayes; SMOTE; TomekLinks; Performance optimization;

    Sammanfattning : This thesis investigates imbalanced Swedish text financial datasets, specifically receipt classification using machine learning models. The study explores the effectiveness of under-sampling and over-sampling methods for Naive Bayes algorithms, collaborating with Fortnox for a controlled experiment. LÄS MER

  3. 2. Multiclass Brain Tumour Tissue Classification on Histopathology Images Using Vision Transformers

    Master-uppsats, Linköpings universitet/Statistik och maskininlärning

    Författare :Christoforos Spyretos; [2023]
    Nyckelord :medical imaging; deep learning; classification; CNN; Vision Transformer; glioblastoma; GBM; IvyGAP; brain tumour; histopathology; digital pathology; histology;

    Sammanfattning : Histopathology refers to inspecting and analysing tissue samples under a microscope to identify and examine signs of diseases. The manual investigation procedure of histology slides by pathologists is time-consuming and susceptible to misconceptions. LÄS MER

  4. 3. Machine Activity Recognition with Augmented Self-training

    Master-uppsats, Högskolan i Halmstad/Akademin för informationsteknologi

    Författare :Ruiyun Wang; [2022]
    Nyckelord :Self-training; Activity Recognition; CAN bus data;

    Sammanfattning : One of the most important business elements in primary and secondary industries is monitoring their equipment. Understanding the usage of heavy logistics machinery can help in realizing the potential of these machinery and improving them. LÄS MER

  5. 4. A Comparative Review of SMOTE and ADASYN in Imbalanced Data Classification

    Kandidat-uppsats, Uppsala universitet/Statistiska institutionen

    Författare :Jakob Brandt; Emil Lanzén; [2021]
    Nyckelord :Machine learning; supervised learning; classification; class imbalance; over-sampling; SMOTE; ADASYN; Sensitivity; F-measure; Matthews correlation coefficient;

    Sammanfattning : In this thesis, the performance of two over-sampling techniques, SMOTE and ADASYN, is compared. The comparison is done on three imbalanced data sets using three different classification models and evaluation metrics, while varying the way the data is pre-processed. LÄS MER

  7. 5. Blood-glucose prediction : Comparing insulin treatment methods

    Kandidat-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Henrik Kultala; Simon Persson; [2020]
    Nyckelord :;

    Sammanfattning : Type 1 diabetes requires its patients to inject artificial insulin in their bodies to control their blood-glucose levels. This can to some extent be automated through the use of insulin pumps and continuous blood-glucose monitoring systems, enabling automatic insulin injections and automatic blood-glucose measurements. LÄS MER