This paper empirically explores relations between network positions in knowledge networks and trust. In social network theory the closure argument and the gossip argument describe this relation. These two arguments do not distinguish between different dimensions of trust. In this paper we estimate effects of closure positions on two dimensions of trust (trust in abilities and trust in intention...

In order to successfully monitor a large-scale distributed system, it is an important issue that the monitoring function fully covers all the entities in the system. To this end, a key challenge is to efficiently transmit state information of the entities in the system. This paper solves this challenge from two aspects. First, in virtue of the idea of self-organizing networks, this paper propos...

Over the last decade, we have seen a revolution in connectivity between computers, and a resulting paradigm shift from centralized to highly distributed systems. With massive scale also comes massive instability, as node and link failures become the norm rather than the exception. For such highly volatile systems, decentralized gossip-based protocols are emerging as an approach to maintaining s...

Gossip is universal, and multiple studies have demonstrated that it can beneficial group-level outcomes when negative reports help identify defectors or norm-violators. Gossip, however, seldom happens in a social vacuum. Instead, enmeshed fabric of positive relationships creates opportunities, constraints, also motives to gossip. This article the importance friendships antipathies among three c...

Gossiping refers to the following task: In a group of individuals connected by a communication network, every node has a piece of information and needs to transmit it to all the nodes in the network. The networks are modeled by graphs, where the vertices represent the nodes, and the edges, the communication links. In this paper, we concentrate on minimum gossip graphs of even order, that is, gr...

We consider a recent model in which agents hold opinions about each other and influence other’s during random pair interactions. When the are initially close, on short term, all tend to increase over time. On contrary, when very unequal, of high status increase, but low stagnate without gossip decrease with gossip. derive moment approximation average opinion changes that explains these observat...