Genetic algorithms: mutation and crossing over

  Рет қаралды 762

Maciej Komosinski

Maciej Komosinski

Күн бұрын

Script available at www.cs.put.pozn...

Пікірлер: 1
@itsmemario1298
@itsmemario1298 11 ай бұрын
Here is a quick summary for those of you who didnt actually understand the main idea of this video😃: Introduction to Biologically Inspired Algorithms: Discussion on biologically inspired algorithms in artificial life, artificial intelligence, and computer science. Previous discussions covered selection in evolutionary algorithms and the main loop of the algorithm. Crossing Over and Mutation: Introduction to the crossing over operator in evolutionary algorithms. Questioning whether crossing over is mandatory for the algorithm to work efficiently. Mention of the analogous operation in other algorithms, termed as "mutation." Necessity of Crossing Over: The discussion on whether crossing over is necessary for the algorithm to function efficiently. Emphasis on the importance of assessing whether crossing over adds value and whether it fulfills the requirements for an efficient operation. Mention of various types of crossing over operations, such as single point crossover and uniform crossover. Challenges of Crossing Over: Highlighting that crossing over creates new solutions by inheriting information from two or more parent solutions. Challenges in implementation: merging information from diverse parents to create a valid and effective child solution. Mention that crossing over may sometimes work like a large mutation, potentially teleporting solutions to unrelated regions. Mutation Operator: Introduction to the mutation operator, which is likened to the neighborhood operator. Questioning the necessity of the mutation operator when crossing over is present. Emphasis on the role of mutation in introducing diversity to the population and preventing premature convergence. Importance of Mutation: Mutation is considered essential unless crossing over fulfills the role of introducing sufficient diversity. Mutation is crucial for traversing the fitness landscape and discovering optimal solutions. Comparison of Crossing Over and Mutation: Crossing over is useful when a child solution should be similar to parents, fulfilling specific requirements. Mutation creates a new solution inheriting information from a single parent, preventing convergence and introducing variability. Conclusion: The importance of both crossing over and mutation in evolutionary algorithms. Acknowledgment that the discussion on crossing over and mutation will continue when exploring representations other than binary, such as vectors of real numbers.
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