Abstract
Spider Monkey Optimization (SMO) is a new metaheuristic whose strengths and limitations are yet to be explored by the research community. In this paper, we make a small but hopefully significant effort in this direction by studying the behaviour of SMO under varying perturbation rate schemes. Four versions of SMO are proposed corresponding to constant, random, linearly increasing and linearly decreasing perturbation rate variation strategies. This paper aims at studying the behaviour of SMO technique by incorporating these different perturbation rate variation schemes and to examine which scheme is preferable to others on the benchmark set of problems considered in this paper. A benchmark set of 15 unconstrained scalable problems of different complexities including unimodal, multimodal, discontinuous, etc., serves the purpose of studying this behaviour. Not only numerical results of four proposed versions have been presented, but also the significance in the difference of their results has been verified by a statistical test.
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- Dim:
-
No. of dimensions
- R(a, b):
-
Uniformly generated random number between a and b
- NG:
-
Number of groups in current swarm
- Pr:
-
Perturbation rate
- G[k]:
-
Number of members in the kth group
- I[k][0]:
-
Index of first member of the kth group in the swarm
- I[k][1]:
-
Index of last member of the kth group in the swarm
- S i :
-
Position vector of ith spider monkey in the swarm
- s ij :
-
jth coordinate of the position of ith spider monkey
- S new :
-
A trial vector for creating a new position of a spider monkey
- S r :
-
Position vector of randomly selected member of group
- ll kj :
-
jth co-ordinate of the local leader of the kth group
- gl j :
-
jth co-ordinate of the global leader of the swarm
- s minj :
-
Lower bound on the jth decision variable
- s maxj :
-
Upper bound on the jth decision variable
- fitness (S i ):
-
Fitness of the position of ith spider monkey
- LLC k :
-
Limit count of the local leader of the kth group
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Acknowledgments
The first author would like to acknowledge the Ministry of Human Resource Development, Government of India for financial support.
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© 2016 Springer Science+Business Media Singapore
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Kavita Gupta, Deep, K. (2016). Investigation of Suitable Perturbation Rate Scheme for Spider Monkey Optimization Algorithm. In: Pant, M., Deep, K., Bansal, J., Nagar, A., Das, K. (eds) Proceedings of Fifth International Conference on Soft Computing for Problem Solving. Advances in Intelligent Systems and Computing, vol 437. Springer, Singapore. https://doi.org/10.1007/978-981-10-0451-3_75
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DOI: https://doi.org/10.1007/978-981-10-0451-3_75
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