Sökning: "Features"

Visar resultat 21 - 25 av 7886 uppsatser innehållade ordet Features.

  1. 21. Detecting Fraudulent User Behaviour : A Study of User Behaviour and Machine Learning in Fraud Detection

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Analys och partiella differentialekvationer

    Författare :Patrik Gerdelius; Sjönneby Hugo; [2024]
    Nyckelord :Fraud Detection; User Behaviour; Random Forest; PCA; SMOTE;

    Sammanfattning : This study aims to create a Machine Learning model and investigate its performance of detecting fraudulent user behaviour on an e-commerce platform. The user data was analysed to identify and extract critical features distinguishing regular users from fraudulent users. LÄS MER

  3. 22. Comparison of VADER and Pre-Trained RoBERTa: A Sentiment Analysis Application

    Kandidat-uppsats, Lunds universitet/Statistiska institutionen

    Författare :Linda Erwe; Xin Wang; [2024]
    Nyckelord :sentiment analysis; natural language processing; BERT; VADER; sustainability report; Mathematics and Statistics;

    Sammanfattning : Purpose: The purpose of this study is to examine how the overall sentiment results from VADER and a pre-trained RoBERTa model differ. The study investigates potential differences in terms of the median and shape of the two distributions. Data: The sustainability reports of 50 independent random companies are selected as the sample. LÄS MER

  4. 23. A Comparative Analysis of SecurityServices Using Identity and AccessManagement (IAM)

    Kandidat-uppsats, Blekinge Tekniska Högskola/Institutionen för datavetenskap

    Författare :Nithya Sree Muddychetty; [2024]
    Nyckelord :Access Control Lists; Identity Access Management; Multi-Factor Authentication; One time password; Single sign on; System Usability Scale; Virtual private network;

    Sammanfattning : Background: Identity and Access Management (IAM) is a critical IT securityframework for managing digital identities and resource access. With roots datingback to ancient civilizations, IAM has evolved from basic authentication to sophisticated methods. LÄS MER

  5. 24. Preliminary Design and Conceptual Analysis of an Electrically Actuated Pintle Injector

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Simone Guietti; [2024]
    Nyckelord :Pintle injector; space propulsion; space engineering;

    Sammanfattning : ”The Eagle has landed”. With this words, astronaut Neil Armstrong, together with astronaut Edwin ”Buzz” Aldrin, confirmed the safe landing on the Moon of the Apollo11 on July 20th, 1969. This achievement would have never been possible without the engineering behind the construction of the Moon lander. LÄS MER

  7. 25. Could this phrase be more constructional? : A Construction Grammar approach to the COULD X BE MORE Y phrase from the television show Friends

    Kandidat-uppsats, Stockholms universitet/Engelska institutionen

    Författare :Linn Nordlander; [2024]
    Nyckelord :construction grammar; information structure; CXBMY; SAI; constructions; rhetorical questions; parody;

    Sammanfattning : This thesis investigates the COULD X BE MORE Y phrase (CXBMY), well-known from the television show Friends, to argue for its qualification as a construction. By analyzing the phrase’s formal and functional features, as well as its frequency in the COCA corpus, this thesis compares the findings to the definition of constructions by Goldberg (2006, p. LÄS MER