Online Social Networks (OSN) are increasingly being used as platform for an effective communication, to engage with other users, and to create a social worth via number of likes, followers and shares. Such metrics and crowd-sourced ratings give the OSN user a sense of social reputation which she tries to maintain and boost to be more influential. Users artificially bolster their social reputati...

Consider two identical discrete-time, finite-dimensional, linear and time-invariant systems denoted as leader and follower. The leader system is driven by a deterministic control input and by a zero-mean white Gaussian process noise. In this paper, we address the problem of designing a networked control scheme for the follower system that guarantees that the state of the follower system tracks ...

The third generation technology will confer to mobile phones all the capacity and speed of a fixed line phone with the additional flexibility of mobility. Major investments in 3G installation facilities are planned in developed economies; the reported investment plans indicate “leader-follower” patterns. Using three real competition options models, we determine the optimal timing of 3G investme...

For a duopoly environment, we model the leader and follower real value functions assuming that the leader’s “market share” evolves according to an immigration (birth) and death process. We derive analytical solutions for the follower and leader options to invest, and numerical solutions for the leader’s optimal investment timing. Then we calculate the partial derivatives of the leader and follo...

Interpersonal coordination during joint action depends on the perception of the partner's movements. In many such situations - for example, while moving furniture together or dancing a tango - there are kinesthetic interactions between the partners due to the forces shared between them that allow them to directly perceive one another's movements. Joint action of this type often involves a contr...

This paper introduces the notion of manipulability to mobile, multi-agent networks as a tool to analyze the instantaneous effectiveness of injecting control inputs at certain, so-called leader nodes in the network. Effectiveness is interpreted to characterize how the movements of the leader nodes translate into responses among the remaining follower nodes. This notion of effectiveness is a func...

* This work is partially supported by NSFC Grant #61340041 and 61374079 and The Project-sponsored by SRF for ROCS, SEM to Yunzhong Song. Abstract: In order to explore the rendezvous problems of leader-follower multi-agent system further, three different kinds of strategies, namely the democracy strategy, the autarchy strategy as well as the mixed strategy, which were inspired by the mankind sys...

This paper addresses schemes for fault detection and isolation in a semi-decentralized environment. Now-a-days, sensor fault and failure are prevalent issues in numerous wireless sensor networks. We propose a few algorithms based on simple phenomenon of data fusion. Initially, a mutual consensus has been built among followers (e.g., Unmanned Autonomous Vehicles in this case) who are tracking a ...

Introduction F ORMATION flight of multiple aircraft has been an active research topic for many years. For the classical lead–follower configuration, when the follower is properly positioned with respect to the lead, the drag on the follower aircraft can be remarkably reduced due to strong wingtip vortices generated by the lead aircraft. Such close-formation flight configurations can lead to red...

Steering rods are subject to variety kinds of loads which will eventually cause failure. Automobile manufacturers and engineers are seeking ways to test the fatigue life of the steering rods. Steering rods under periodic loads over millions of cycles will get fatigued. We here provide a fatigue test bench for steering rods which applies periodic loads to the rod with a cam loading system. Cyclo...