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This work shows improvement with a modified form of the
existing partially-mapped crossover operator for the traveling salesman
problem. This novel crossover approach has been presented to get solutions by order of a list, and “permutation crossover”operators, while preserving the legality of offspring. Results are compared with many existing
schemes for permutation representation, like partially-mapped, order, and
cycle crossovers, etc. Our modified form of partially-mapped crossover
operator searches the existing bits outside the crossover sites, whereas the
existing partially-mapped crossover searches within the crossover sites.
This approach is easy to understand as well as to apply on benchmark
problems. Comparison of the proposed operator with traditional ones for
several benchmarks TSPLIB instances widely shows its advantages at the
same accuracy level. Also, it requires less time for tuning of genetic parameters and provides much narrower confidence intervals on the results,
compared to other operators.
Abid Hussain, Yousaf Shad Muhammad, Muhammad Nauman Sajid. (2019) A Simulated Study of Genetic Algorithm with a New Crossover Operator using Traveling Salesman Problem, Punjab University Journal of Mathematics, Volume 51, Issue 5.
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