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    Wyświetlanie 1-5 z 5
    Tytuł:
    Partner Selection Using Reputation Information in n-player Cooperative Games
    Autorzy:
    Mariano, P.
    Correia, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/308277.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    evolution of cooperation
    multi-agent systems
    n-player games
    partner selection
    reputation
    Opis:
    To study cooperation evolution in populations, it is common to use games to model the individuals interactions. When these games are n-player it might be di cult to assign defection responsibility to any particular individual. In this paper the authors present an agent based model where each agent maintains reputation information of other agents. This information is used for partner selection before each game. Any agent collects information from the successive games it plays and updates a private reputation estimate of its candidate partners. This approach is integrated with an approach of variable sized population where agents are born, interact, reproduce and die, thus presenting a possibility of extinction. The results now obtained, for cooperation evolution in a population, show an improvement over previous models where partner selection did not use any reputation information. Populations are able to survive longer by selecting partners taking merely into account an estimate of others' reputations.
    Źródło:
    Journal of Telecommunications and Information Technology; 2014, 4; 53-60
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study of the temporal-statistics-based reputation models for q&a systems
    Autorzy:
    Adamska, P.
    Juźwin, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/305724.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    Q&A systems
    reputation systems
    expertise
    online communities
    Opis:
    Q&A systems are becoming a vital source of knowledge in many different domains. In some cases, they are also associated with services which provide employers with important information regarding the expertise of its potential employees. Therefore, the reputation earned in such communities can be associated with better job opportunities, and its significance is increasing. However, in a community where there is no direct financial motivation for participation, a reputation score is not solely an expertise metric. It is also a powerful motivator for remaining an active community member. Regardless of this complexity, algorithms for calculating reputation scores need to be as easy to understand (and implement) as possible. Therefore, the designers of the Q&A reputation system often implement a set of fixed rules, to some extent trading quality for quantity. Our goal is to study whether (and how) temporal statistics of a Q&A website can be incorporated into its reputation system. We want the proposed mechanism to dynamically adjust the impact of a single-answer evaluation on the reputation of its producer. We would like the proposed model to accurately reflect the expertise of content producers.
    Źródło:
    Computer Science; 2015, 16 (3); 253-263
    1508-2806
    2300-7036
    Pojawia się w:
    Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Oracle - a New Intelligent Cooperative Strategy of Attacks on Trust and Reputation Systems
    Autorzy:
    Janiszewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/106242.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
    Tematy:
    reputation systems
    Oracle attack
    malicious nodes
    model of the attack
    Opis:
    The paper presents a new concept of attack on trust and reputation systems. The oracle attack could violate the security provided by some of the existing reputation systems. The formal model of the attack is presented in the article on the base of the reference trust model, provided bythe author. The author has proved that this type of attack could be eficient. On the other hand,a sort of measures is provided in the paper which could be implemented in the reputation systems to overcome identified vulnerabilities, unfortunately at the cost of increase of system complication.The paper also provides a definition of intelligent strategies of attacks on trust and reputation systems based on cooperation of many malicious nodes and justifies why this type of attacks is a serious threat.
    Źródło:
    Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2014, 14, 2; 86-102
    1732-1360
    2083-3628
    Pojawia się w:
    Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Towards an Evaluation Model of Trust and Reputation Management Systems
    Autorzy:
    Janiszewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/226314.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    trust
    reputation
    attacks
    trust and reputation management system
    TRM
    attacks on trust and reputation management systems
    Opis:
    The paper presents a set of concepts which can establish a basis for the creation of new evaluation model of trust and reputation management systems (TRM). The presented approach takes into account essential characteristics of such systems to provide an assessment of its robustness. The model also specifies measures of effectiveness of trust and reputation systems. There is still a need to create a comprehensive evaluation model of attacks on trust and reputation management systems and evaluation model of TRM systems itself, which could facilitate establishing a framework to deeply evaluate the security of existing TRM systems. We believe that this paper could be perceived as a small step forward towards this goal.
    Źródło:
    International Journal of Electronics and Telecommunications; 2017, 63, 4; 411-416
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Trust and Risk Assessment Model of Popular Software Based on Known Vulnerabilities
    Autorzy:
    Janiszewski, M.
    Felkner, A.
    Olszak, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/226553.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    software vulnerabilities
    risk assessment
    software management
    trust management models
    reputation management models
    0-day vulnerabilities forecast
    risk of information systems
    prediction model
    Opis:
    This paper presents a new concept of an approach to risk assessment which can be done on the basis of publicly available information about vulnerabilities. The presented approach uses also the notion of trust and implements many concepts used in so called trust and reputation management systems (which are widely used in WSN, MANET or P2P networks, but also in ecommerce platforms). The article shows first outcomes obtained from the presented model. The outcomes demonstrate that the model can be implemented in real system to make software management more quantified and objective process, which can have real and beneficial impact on institutional security. In article, however the emphasis was set not on the model itself (which can be easily changed) but on the possibility of finding useful information about vulnerabilities.
    Źródło:
    International Journal of Electronics and Telecommunications; 2017, 63, 3; 329-336
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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