Fast Evolutionary Algorithms - Embedded Intelligent Robotics - Lecture Slides, Slides of Robotics

Course title is Embedded Intelligent Robotics. This course is for Electrical engineering students. Though good thing is everyone can learn about robotics in this course. This lecture includes: Fast Evolutionary Algorithms, Claims, Evolutionary Time, Genetic Algorithm, Adaptive Mutation, Curve Optimization Experiment, Qualitative Comparison

Typology: Slides

2013/2014

Uploaded on 01/29/2014

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HereBoy:
A Fast Evolutionary
Algorithm
docsity.com
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HereBoy:

A Fast Evolutionary

Algorithm

Claims

  • Up to

100X faster

than a

Genetic

  • Up to Algorithm

10X faster

than a

Simulated

  • Significantly better Scalability Annealing

Genetic Algorithm

Population of

Individuals

Survival of the

Fittest Reproduction

with Crossover

Generation

n+

Generation

n

15

60

20 48

Population of

Individuals

Simulated Annealing

1-Bit

Mutate

Score

Chromosome

Mutated

Chromosome

Evaluate

If Better

If Worse

Probability

Test

You still keep

worse

solutions with

some

probability docsity.co

Adaptive Mutation

Convergence

Adaptive Mutation

Chromosome

Mutation Bits =

αααα

= MaxMutationRate = UserFraction x ChromosomeBits

MaxScore - MaxCurrentScore
MaxScore

How many bits to

mutate?

Adaptive Search

Convergence

Acceptance

Probability

0.

Acceptance

Probability

0.

Acceptance

Probability

0.

A B C D E F

Adaptive Search

A

B

Search Probability =

ρ

= MaxSearchProbability = UserFraction

MaxScore - MaxCurrentScore
MaxScore
How to select the probability value?

Curve Optimization Results

Iterations Solving Binary F

99% Complete

100% Complete

x

σ

σ σ

σ

x

σσσσ

Genetic

Algorithm

Annealing Simulated

HereBoy

Easy and Hard Binary F6 Experiments

HereBoy

Simulated Annealing

Genetic

Algorithm

Scale Between

Number of

iterations

docsity.co

Evolvable Hardware Experiment

Pattern Generation

Iteration = 0 Score = 800

Iteration = 3,

Score = 1,

Iteration = 65,

Score = 1,

Pattern Generator Circuit Statistics

10x

20x

Search Space Size

6400

25,

Probability of

Randomly Creating

100% Solution

Qualitative Comparison

HereBoy

Simulated Annealing

Genetic

Algorithm

Maximum Score