In many animal groups, coordinated activity is facilitated by the emergence of leaders and followers. Although the identity of leaders is to some extent predictable, most groups experience frequent changes of leadership. How do group members cope with such changes in their social role? Here, we compared the foraging behaviour of pairs of stickleback fish after a period of either (i) role reinfo...

In this paper, the time-varying formation tracking problem of general linear multi-agent system is discussed. A distributed protocol based on Riccati inequalities with adaptive coupling weights among follower agents and leader agent designed for a leader-following under fixed switching topologies. The configuration involved in paper expressed as bounded piecewise continuously differentiable vec...

Studies in human and non-human primates indicate that basic socio-cognitive operations are inherently linked to the power of gaze in capturing reflexively the attention of an observer. Although monkey studies indicate that the automatic tendency to follow the gaze of a conspecific is modulated by the leader-follower social status, evidence for such effects in humans is meager. Here, we used a g...

The current paper addresses the distributed guaranteed-cost synchronization problems for general high-order linear multiagent networks. Existing works on the guaranteedcost synchronization usually require all state information of neighboring agents and cannot give the cost budget previously. For both leaderless and leader-following interaction topologies, the current paper firstly proposes a dy...

We study leader election in unidirectional rings of homonym processes that have no a priori knowledge on the number of processes. We show that message-terminating leader election is impossible for any class of rings Kk with bounded multiplicity k ≥ 2. However, we show that process-terminating leader election is possible in the subclass U∗ ∩ Kk, where U ∗ is the class of rings which contain a pr...

The basic assumption in visual angle car following models is that the following distance between successive vehicles is a function of the object (i.e. leading vehicle) width. This paper examines the validity of this assumption using two types of data. Published real traffic data from instrumented vehicles in the USA and Germany have been used to check the ability of these models to replicate re...

In the leader election problem, n players wish to elect a random leader. The difficulty is that some coalition of players may conspire to elect one of its own members. We adopt the perfect information model: all communication is by broadcast, and the bad players have unlimited computational power. Protocols proceed in rounds: though players are synchronized between rounds, within each round the...

The paper is devoted to the analysis of process political communication in conditions networkization public space. sign-symbolic level considered on example content-semantic filling image a regional leader. purpose this research analyze content leader and identify presence or absence manifestation effect networking it. objectives study are goals, principles their implementation features with ot...

present research studies the relationship between leader empowering behaviors and employee stress in qom agricultural jihad organization. to measure leader empowering behaviors, hoy’s (1994) leader empowering behaviors model and for measure employee distress, rondelof and blackburn questionnaire (1990) have been used. statistical sample consists of 70 employees of qom agricultural jihad organiz...

In this article, the problem of simultaneous leader-following consensus and parameter estimation is studied for a class multiagent systems subject to an uncertain leader system. The system described by sum sinusoids with unknown amplitudes, frequencies, phases. A fully distributed adaptive observer established each agent estimate frequencies without using any global information. It shown that i...