Kritik sistemlerin savunma planlaması için iki seviyeli çoklu saldırı tipli koruma modelleri

Kritik tesisler, bir ülke için yüksek önem düzeyine sahip, herhangi bir sebeple savaş, terörist saldırı, doğal afetler vb. gibi kendilerine verilecek zarar neticesinde, ülkeyi önemli ölçüde etkileyebilecek tesislerdir. Bu tesislerin korunması önemli problemlerden biridir. Özellikle 11 Eylül 2001’deki ve AB ülkelerinde gerçekleşen terör saldırıları ile birlikte kritik tesislerin güvenliğine yönelik ABD, AB ve gelişmiş diğer ülkelerde pek çok çalışma başlamıştır. Bu çalışma belirli bir bölgenin talebinin kesintisiz olarak sağlanması için hangi tesislerin korunacağının belirlenmesine yönelik ele alınan NP zor sınıftaki tesis koruma problemlerinden biri ile ilgilidir. Bu çalışmada kritik sistemlerin savunma planlaması için iki yeni matematiksel model sunulmuştur. Bu modeller, daha önceki çalışmalarda göz ardı edilmiş olan farklı saldırı tipleri ve karşı gelen savunma tipleri göz önüne alınmıştır. Ayrıca sınırlı kaynaklara sahip sistemler için Arz Talep dengesinin bozulmasına yönelik öncelikli amaç modele dahil edilmiştir. Problemin çözümü için, Scaparra (2008)’nın RIMF (r-interdiction median problem with fortification) modeli temel alınmıştır. İlk model saldırı ve koruma tiplerini göz önüne alan ve eniyi koruma stratejisini veren iki seviyeli modelidir, ikinci model arz talep dengesini bozma amaçlı saldırıların göz önüne alındığı modelidir. Çeşitli güvelik sebebleri ile gerçek verilere ulaşmak güçtür, bu nedenle modellerin testi için üretilen test verileri ile modeller eniyi çözümü vermiştir. Ancak daha büyük ölçekli problemler için sezgisel bir yaklaşım gerekmektedir ve bunun üzerinde çalışmaktayız.

Anahtar Kelimeler:

Yasaklama problemleri, koruma problemleri, iki seviyeli programlama, savunma planlaması, saldırı tipleri, arz-talep dengesi

Bi-level Multiple Attack Type Protection Models for Defense Planning of Critical Systems

Critical facilities are highly important for a country. Damage the facilities as a result of war, terrorist attack, natural disasters etc., the country is affected significantly. Protection of these facilities is one of the major problems. Especially with the 11 September 2001 attack and terrorist attacks of EU countries, many studies have started in the USA, EU and other developed countries for the security of critical facilities. This paper is one of NP hard facility protection problems and determines which facilities are to be protected to meet the demand of a particular zone. In previous studies, different attack and defence types have been disregarded for this problem. This paper presents two new mathematical models for defense planning of critical systems . Our models consider different attack and defense options. The decision of which facilities under the risk of different attacks are to be protected to meet the demand of a particular zone is of interest. Also preferential aim to disrupt the supply-demand balance are included in the model. Solution of problem has based RIMF (r-interdiction median problem with fortification) model of Scaparra (2008). First model proposed is called as which considers these different attack and defense types and decides the best protection strategy, second model is called as and this model tries to disrupt the supply-demand balance. Due to the security reasons, obtaining real data for such problems are almost impossible. Therefore we generate test data to use models. We obtain results but for bigger sized problems, a heuristic approach is needed and we are working on that.

Keywords:

Interdiction problem, protection problem, bi-level programing, defense planning, attack types, supply-demand balance,

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