We propose new implicit schemes to solve the homogeneous and isotropic Fokker-Planck-Landau equation. These schemes have conservation and entropy properties. Moreover, they allow for large time steps (of the order of the physical relaxation time), contrary to usual explicit schemes. We use in particular fast linear Krylov solvers like the GMRES method. These schemes allow an important gain in t...

The interactions among peers in Peer-to-Peer systems as a distributed collaborative system are based on asynchronous and unreliable communications. Trust is an essential and facilitating component in these interactions specially in such uncertain environments. Various attacks are possible due to large-scale nature and openness of these systems that affects the trust. Peers has not enough inform...

abstract previous research have shown that physical and mental illness and mortality are influenced by class status, material life standards, genetics and infection, but today social context attracted attention. in this paper social capital as a composition of social trust, support and relations seen as a mental health determinant. the aim of this paper is examining the relationship between soc...

The present study intends to investigate social trust among the female students of Ilam universities. The first and the main question of the research were to examine the extent of social trust among female students at Ilam universities, and to figure out the factors which can influence their social trust. The survey was adopted as a main method of research. Based on  statistical sampling, from...

The increasing reliance on information gathered from the web and other internet technologies raise the issue of trust. Through the development of semantic Web, One major difficulty is that, by its very nature, the semantic web is a large, uncensored system to which anyone may contribute. This raises the question of how much credence to give each resource. Each user knows the trustworthiness of ...

While most of the computational trust models devote to truthfully detecting trustworthy individuals, much less attention is paid to how these models are perceived by users, who are the core of the trust machinery. Understanding the relation between trust models and users‟ perception of those models may contribute for reducing their complexity, while improving the user-experience and the system ...

There has been a lot of research and development in the field of computational trust in the past decade. Much of it has acknowledged or claimed that trust is a good thing. We think it’s time to look at the other side of the coin and ask the questions why is it good, what alternatives are there, where do they fit, and is our assumption always correct? We examine the need for an addressing of the...