Reputation mechanisms for distributed e-Communities are vital tools for facilitating trust decisions regarding transactions between entities. Motivated by the current challenges in the area of P2P reputation systems regarding their desgign, credibilty enhancement and objective evaluation, in this thesis we worked towards (1) creating a framework for the development and evaluation of secure repu...

Website: http://courses.cs.washington.edu/courses/cse517/16wi Lectures: Smith 102, Mondays and Wednesdays 1:30–2:50 pm Instructor: Noah A. Smith ([email protected]) Instructor office hours: CSE 532, Fridays 1:30–2:30 pm or by appointment Teaching assistants: Jesse Dodge ([email protected]) Eunsol Choi ([email protected]) Kenton Lee ([email protected]) TA office hours: CSE 220, Mo...

High-quality chest compressions are pivotal to improve survival from cardiac arrest. Basic life support training of school students is an international priority. The aim of this trial was to assess the effectiveness of a real-time training software (Laerdal QCPR®) compared to a standard instructor-based feedback for chest compressions acquisition in secondary school students. After an interacti...

he epidemiological study of burned patients in   west azarbalian (1382)   m. khoshkalam [1] ,m.s. jamirzadeh [2] , m.s .     abstract     introduction: bum injuries still produce a significant morbidity and mortality in iran. this study was carried out to show the epidemiology, mortality, and etiological factors of burned patients in province of west azarbaijan.   methods & materials: this stud...

This paper describes our participation at RepLab 2014, a competitive evaluation for reputation monitoring on Twitter. The following tasks were addressed: (1) categorisation of tweets with respect to standard reputation dimensions and (2) characterisation of Twitter profiles, which includes: (2.1) identifying the type of those profiles, such as journalist or investor, and (2.2) ranking the autho...

Reputation plays a central role in human societies. Empirical and theoretical work indicates that a good reputation is valuable in that it increases one's expected payoff in the future. Here, we explore a game that couples a repeated Prisoner's Dilemma (PD), in which participants can earn and can benefit from a good reputation, with a market in which reputation can be bought and sold. This game...

Assume you are rolling a dice over and over again. How long to expect until it shows “6” for the first time? More generally, we observe a random process that is either “successful” or “not successful” in every round. All rounds are independent and in each we get the outcome “successful” with probability p. Let T denote the random variable indicating the number of rounds it takes until we see “s...

We never know with certainty the validity of a hypothesis unless we examine the entire population. What we can say is the probability of observing our sample data if the hypothesis was correct. If this probability is extremely small we would argue that it is unlikely that the hypothesis is valid. We then “reject the hypothesis.” The null hypothesis (denoted H0) is the hypothesis we test, the re...