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With the rise of network on handheld devices, security of the network has become critical issue. Intrusion detection system is used to predict intrusive packets on network; two-step procedure has been used to predict the intrusion, i.e., feature selection and then classification. Firstly, unwanted and expandable features in data lead to network classification problem which affect the decision capability of the classifiers, so we need optimize feature selection technique. Feature selection technique used in this paper is based on the correlation information known as correlation-based feature selection (CFS). In this paper, CFS's search algorithm is implemented using Chaotic Flower Pollination Algorithm (CFPA) that logically selects the most favorable features for classification referred as CFPA-CFS. Further, hybridization of CFPA and support vector machine classifier is implemented and named as CFPSVM. Finally, novel IDS framework uses CFPA-CFS and CFPSVM in sequence to predict the intrusion. Further, performance of proposed framework is evaluated using two intrusion detection evaluation datasets, namely KDDCup99 and NSL-KDD. The results demonstrate that proposed CFPA-CFS contributes more critical features for CFPSVM to achieve better accuracy compared with the state-of-the-art methods. [ABSTRACT FROM AUTHOR]

Number of associative triples of quasigroup plays an important role in development of quasigroup based cryptographic schemes. In this paper we present algebraic properties of highly non-associative quasigroups and derive the criteria for polynomial completeness based on their multiplicative groups. We develop an algorithm to check the polynomial completeness of the quasigroup Q from its Latin square representation, which is based on the criteria derived by using element of Mult(Q) with specific cycle structure. We also develop and implement an algorithm for deriving associative triples of finite quasigroups based on commutators of their Latin squares. Experimental results on quasigroups of different order and all quasigroups of order 4 of different classes are reported. [ABSTRACT FROM AUTHOR]