With the birth of Software-Defined Networking(SDN),integration of both SDN and traditional architectures becomes the development trend of computer networks.Network intrusion detection faces challenges in dealing with ...With the birth of Software-Defined Networking(SDN),integration of both SDN and traditional architectures becomes the development trend of computer networks.Network intrusion detection faces challenges in dealing with complex attacks in SDN environments,thus to address the network security issues from the viewpoint of Artificial Intelligence(AI),this paper introduces the Crayfish Optimization Algorithm(COA)to the field of intrusion detection for both SDN and traditional network architectures,and based on the characteristics of the original COA,an Improved Crayfish Optimization Algorithm(ICOA)is proposed by integrating strategies of elite reverse learning,Levy flight,crowding factor and parameter modification.The ICOA is then utilized for AI-integrated feature selection of intrusion detection for both SDN and traditional network architectures,to reduce the dimensionality of the data and improve the performance of network intrusion detection.Finally,the performance evaluation is performed by testing not only the NSL-KDD dataset and the UNSW-NB 15 dataset for traditional networks but also the InSDN dataset for SDN-based networks.Experimental results show that ICOA improves the accuracy by 0.532%and 2.928%respectively compared with GWO and COA in traditional networks.In SDN networks,the accuracy of ICOA is 0.25%and 0.3%higher than COA and PSO.These findings collectively indicate that AI-integrated feature selection based on the proposed ICOA can promote network intrusion detection for both SDN and traditional architectures.展开更多
螺旋霉素链霉菌生物合成螺旋霉素的过程受许多酶的调控作用。酰基激酶和酰基 Co A合成酶是螺旋霉素内酯环合成的重要酶。实验测定了它们的酶活趋势和酶的影响因子。结果表明 ,酰基激酶和酰基 Co A合成酶都有两个活力峰 ,前者活性集中在...螺旋霉素链霉菌生物合成螺旋霉素的过程受许多酶的调控作用。酰基激酶和酰基 Co A合成酶是螺旋霉素内酯环合成的重要酶。实验测定了它们的酶活趋势和酶的影响因子。结果表明 ,酰基激酶和酰基 Co A合成酶都有两个活力峰 ,前者活性集中在发酵中前期 ,后者活性集中在发酵中后期。实验发现 Co2 + 、Mn2 + 对酰基激酶和酰基 Co A合成酶有较强的激活作用 ,Cu2 + 对酰基激酶有抑制作用 ,但对酰基 Co A合成酶有很强的激活作用。在发酵中期向摇瓶中补加二价阳离子比在发酵初期加入有更明显的激活作用 ,平均效价最高提高了 31 %展开更多
基金supported by the National Natural Science Foundation of China under Grant 61602162the Hubei Provincial Science and Technology Plan Project under Grant 2023BCB041.
文摘With the birth of Software-Defined Networking(SDN),integration of both SDN and traditional architectures becomes the development trend of computer networks.Network intrusion detection faces challenges in dealing with complex attacks in SDN environments,thus to address the network security issues from the viewpoint of Artificial Intelligence(AI),this paper introduces the Crayfish Optimization Algorithm(COA)to the field of intrusion detection for both SDN and traditional network architectures,and based on the characteristics of the original COA,an Improved Crayfish Optimization Algorithm(ICOA)is proposed by integrating strategies of elite reverse learning,Levy flight,crowding factor and parameter modification.The ICOA is then utilized for AI-integrated feature selection of intrusion detection for both SDN and traditional network architectures,to reduce the dimensionality of the data and improve the performance of network intrusion detection.Finally,the performance evaluation is performed by testing not only the NSL-KDD dataset and the UNSW-NB 15 dataset for traditional networks but also the InSDN dataset for SDN-based networks.Experimental results show that ICOA improves the accuracy by 0.532%and 2.928%respectively compared with GWO and COA in traditional networks.In SDN networks,the accuracy of ICOA is 0.25%and 0.3%higher than COA and PSO.These findings collectively indicate that AI-integrated feature selection based on the proposed ICOA can promote network intrusion detection for both SDN and traditional architectures.
文摘螺旋霉素链霉菌生物合成螺旋霉素的过程受许多酶的调控作用。酰基激酶和酰基 Co A合成酶是螺旋霉素内酯环合成的重要酶。实验测定了它们的酶活趋势和酶的影响因子。结果表明 ,酰基激酶和酰基 Co A合成酶都有两个活力峰 ,前者活性集中在发酵中前期 ,后者活性集中在发酵中后期。实验发现 Co2 + 、Mn2 + 对酰基激酶和酰基 Co A合成酶有较强的激活作用 ,Cu2 + 对酰基激酶有抑制作用 ,但对酰基 Co A合成酶有很强的激活作用。在发酵中期向摇瓶中补加二价阳离子比在发酵初期加入有更明显的激活作用 ,平均效价最高提高了 31 %
