The acquaintances network contains the addresses of the friends agents and the enemies agents used to send messages. This network is dynamically constructed and permanently updated. Agents are friends (enemies) if their semantic proximities are strictly positive (negative).

## 4.2 Factual Agent Behaviour

Behavioural Automaton The internal behaviour of a factual agent is described by a generic augmented transition network (ATN). The ATN **is made of**
four states [3] (quoted above) linked by transitions:

- Initialisation **state: the agent is created and enters in activities;**

![0_image_0.png](0_image_0.png) - Deliberation **state: the agent searches in its acquaintances allies in order to**
achieve its goals;
- Decision **state: the agent try to control its enemies to be reinforced;** - Action **state: it is the state-goal of the factual agent, in which the latter**
demonstrates its strength by acting and liquidating its enemies.
ATN transitions are stamped by a set of conditions and a sequence of actions.

Conditions are defined as thresholds using internal indicators. The **agent must** validate thus one of its outgoing current state transitions in order **to pass to the** next state. The actions of the agents may be an enemy aggression **or a friend** help. The choice of the actions to perform depend both on the type **of the agent** and its position in the ATN.

Factual Agent Indicators **The dynamic measurement of an agent behaviour**
and its state progression at a given time are given thanks to indicators. These characters are significant parameters that describe the activities variations of each agent and its structural evolution. In other words, the agent state is specified by the set of these significant characters that allow both the description of its current situation and the prediction of its future behaviour [4] (quoted above).

Factual agent has five indicators, which are pseudoPosition (PP), **pseudoSpeed**
(PS), pseudoAcceleration (PA), satisfactory indicator (SI) and constancy indicator (CI) [8]. The "pseudo" prefix means that these indicators are not a real