Study On Facility Protection Strategy Under Uncertain Intelligence Of Attack Behavior

In a network of supply systems,we call the operators of the network the defenders,and the spontaneous or deliberate attacks the attackers.In this article,we will attack attack intelligent degree is defined as its aggressive behavior is a reflection of the before is to make the recognition of information,acquiring,processing capacity,and organizational planning process conducted by the degree of rational thinking,analysis,reasoning,judgment.To a certain extent,it is reflected by the scientific nature and effectiveness of aggression.Then,the specific strategy of the attacker to deploy the attack resources he has can reflect the intelligence of the attack.If attack ability to obtain the necessary information as well as the game against strategy game,and defense party and defense party formulate defense strategy are interactive,and will reflect the process on the attack,then we will think the attack has a relatively high degree of intelligence;When an attack tactics,follow a particular behavior(e.g.,carried out in accordance with the node degrees descending attack,carried out in accordance with the node flow ascending attack,etc.),the attack will be identified as time level intelligent degree of aggression;If the attacker makes random attacks on the network without any difference,then the attack is considered to have the lowest intelligence.In reality,as defenders of the supply system network,because it is difficult to perfect mastery of information,to attack the party also may not be completely accurate prediction,defenders are likely to overestimate or underestimate the intelligence of aggression.In this paper,the results show that the overvalued or undervalued attack degree of intelligence will undoubtedly increase the actual loss of the defenders,but even if the attack will be reflected in the game process of attack rate is much smaller than 50%,through the game model of defense strategy is superior to the game model of defense strategy.The conclusion drawn from the analysis of this paper is that compared with the non-game model,the defensive resource allocation based on the game model will not generate too much additional expected loss.At the same time,we also under the assumption that the defending that attacks the probability of using game attacks,on the basis of establishing the aggression of the intelligent degree under uncertainty facility protection model,and accordingly determine the defense strategies both in the face of the kind of attack,won’t produce too much extra expected losses.At the same time,through the analysis of some parameters,some other conclusions are also drawn.(2)as a defensive party,when the defense resources are small,the benefits of increasing the defense resources are very high;(3)as the attacking party,the marginal benefit of attacking resources investment is increasing.