Sökning: "data poisoning"

Visar resultat 1 - 5 av 30 avhandlingar innehållade orden data poisoning.

  1. 1. Analysis of Attacks on Controlled Stochastic Systems

    Författare :Alessio Russo; Alexandre Proutiere; György Dán; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; reinforcement learning; markov decision process; attack; detection; data poisoning; online learning; Datalogi; Computer Science; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : In this thesis, we investigate attack vectors against Markov decision processes anddynamical systems. This work is motivated by the recent interest in the researchcommunity towards making Machine Learning models safer to malicious attacks. LÄS MER

  3. 2. Råd och ruelse : Moral och samtalsstrategier i Giftinformationscentralens telefonrådgivning

    Författare :Håkan Landqvist; Jan Svennevig; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Scandinavian languages - general; institutional discourse; telephone conversation; hotline; conversation analysis; face-saving strategies; morality; interactional asymmetry; poison information centre; poisoning; advice giving; Swedish; Nordiska språk - allmänt; Scandinavian languages; Nordiska språk; nordiska språk; Scandinavian Languages;

    Sammanfattning : In many different kinds of institutional discourse, the agenda concerns issues that have strong moral implications for the layperson. The present study deals with one such type of discourse, citizens’ calls to the Swedish Poison Information Centre (PIC). LÄS MER

  4. 3. Cyanide in breath as a marker for cyanide poisoning

    Författare :Kristin Stamyr; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Approximately 120 people die every year due to fires in Sweden. A majority of the fire victims die due to toxic fire gases. Carbon monoxide is often thought to be the major cause of death. Still, another very toxic fire gas, hydrogen cyanide, is formed when materials containing nitrogen burn, e. LÄS MER

  5. 4. Efficient Exploration and Robustness in Controlled Dynamical Systems

    Författare :Alessio Russo; Alexandre Proutiere; Henrik Sandberg; Marcello Restelli; Nikolai Matni; Jana Tumova; Mikael Asplund; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; reinforcement learning; efficient exploration; bandit algorithms; adversarial attacks; conformal prediction; data posioning; markov decision processes; attack detectability; optimal control; adaptive control; Electrical Engineering; Elektro- och systemteknik; Datalogi; Computer Science; Mathematical Statistics; Matematisk statistik;

    Sammanfattning : In this thesis, we explore two distinct topics. The first part of the thesis delves into efficient exploration in  multi-task bandit models and model-free exploration in large Markov decision processes (MDPs). LÄS MER

  7. 5. Suicide and drugs. Drug related suicide mortality and physicians' prescription patterns

    Författare :Anders Carlsten; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Suicide; drug use; drug poisoning; antidepressants; benzodiazepines; prevention.;

    Sammanfattning : Aim: The aims of the study were to 1) analyse a possible association between changes in drug sales and the occurrence of drug poisoning suicides 2) assess the role of benzodiazepines in elderly suicides 3) analyse changes in suicide mortality after the introduction of the selective serotonin reuptake inhibitors, SSRIs 4) examine physicians' inclination to prescribe benzodiazepines in low and high prescribing areas. Method: Information on suicide mortality and death certificates were obtained from Statistics Sweden. LÄS MER