Genetic Algorithms Quiz
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Questions and Answers

What is the primary purpose of a genetic algorithm?

  • To find a good solution to a problem (correct)
  • To evaluate a set of stochastic operators
  • To keep the best solutions discovered
  • To generate a new set of parents
  • What is the main difference between mutation and crossover?

  • Mutation is explorative and crossover is exploitative
  • Mutation is exploitative and crossover is explorative (correct)
  • Mutation is used for bit-string and crossover for integer representations
  • Mutation is used for integer and crossover for bit-string representations
  • What is the process called when a set of parents is replaced by the offspring?

  • Elitism
  • Mutation
  • Crossover
  • Steady-state replacement (correct)
  • What is the main goal of schema theory?

    <p>To give a theoretical justification for the efficacy of genetic algorithms</p> Signup and view all the answers

    What is a schema?

    <p>A template for new gene arrangements</p> Signup and view all the answers

    Study Notes

    • A genetic algorithm (GA) is a computer program that tries to find a good solution to a problem by evolving a population of candidate solutions.
    • The GA maintains a population of solutions and makes it evolve by iteratively applying a set of stochastic operators.
    • The GA has been subject of many (early) studies and still often used as a benchmark for novel GAs.
    • The GA shows many shortcomings, e.g. it is too restrictive in its representation of solutions, mutation and crossovers only applicable for bit-string and integer representations, and selection mechanism sensitive for converging populations with close fitness values.
    • We will use Tournament Selection to choose a solution and place it in the mating pool. Two other solutions will be picked and another solution in the mating pool will be filled up with the better solution.
    • Order-1 crossover is explorative and mutation is exploitative.
    • Mating individualsto generate pop_size offspring is a steady-state replacement process.
    • Each individualsurvives for exactly one generation and the entire set of parents is replaced by the offspring.
    • The elitism option is used to keep one or more of the best solutions discovered so far and copy them to the next generation.
    • Schema theory seeks to give a theoretical justification for the efficacy of the field of genetic algorithms.
    • What is a schema:
    • a template for new gene arrangements  {0,1,*} where * is a don't care.
    • Schema is favorable traits in a solution, where a favorable schema is called an above average schema.

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    Description

    Test your knowledge about genetic algorithms, a computer program for finding solutions through evolving populations of candidate solutions. This quiz covers topics such as genetic algorithm operators, shortcomings, selection mechanisms, and schema theory.

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