Sökning: "CHRISTOPHER TELJSTEDT"

Hittade 2 uppsatser innehållade orden CHRISTOPHER TELJSTEDT.

  1. 1. Separating Tweets from Croaks : Detecting Automated Twitter Accounts with Supervised Learning and Synthetically Constructed Training Data

    Master-uppsats, KTH/Skolan för datavetenskap och kommunikation (CSC)

    Författare :Erik Christopher Teljstedt; [2016]
    Nyckelord :bot detection; information operations; synthetically constructed training data; social media analysis; classification; learning systems; social networking online ; bot detection; classification performance; classification results; machine learning approaches; military conflicts; semi-automatic; automation;

    Sammanfattning : In this thesis, we have studied the problem of detecting automated Twitter accounts related to the Ukraine conflict using supervised learning. A striking problem with the collected data set is that it was initially lacking a ground truth. LÄS MER

  3. 2. RB-PoW: A reputation based approach tocryptographic mitigation of denial-of-serviceattacks

    Kandidat-uppsats, KTH/Skolan för datavetenskap och kommunikation (CSC)

    Författare :FREDRIK LILKAER; CHRISTOPHER TELJSTEDT; [2013]
    Nyckelord :;

    Sammanfattning : Denial of Service (DoS) aims to drain the underlying resources of a service and is a increasing problem for today’s service providers. In this paper, we propose a novel reputation based proof-of-work (RB-PoW) protocol based on adaptive scaling of puzzle difficulties to mitigate various denial-of-service attacks. LÄS MER