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JBClion
February 27, 2018
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web ga webzueri
JBClion
February 27, 2018
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Transcript
Genetic Algorithm for Web Developers Jean-Baptiste Clion Google Developer Expert
Web Zürich
10 01 11 00 01 10 00 01 11 10
00 01 11 10 00 00
01100011001001000100110100010101 32 bits = 232 = 4,294,967,296 possibilities four billion,
two hundred and ninety-four million, nine hundred and sixty-seven thousand, two hundred and ninety-six
Search space The set of all possible solutions able to
satisfy a given problem constraints.
00000000000000000000000000000000 TO 11111111111111111111111111111111
Find a single value
Intelligence Capacity to search the most adapted solution to a
given problem in the most efficient way and within the shortest possible time.
01010010110000010000110010010000 | 0.24 11001001100011100000111100000011 | 0.48 01010010110111010010110010010000 | 0.64 Fitness
operator
00000000000000000000000000000000 11111111111111111111111111111111 Crossover operator Solution #1 Solution #2 00110011001100110011001100110011 Solution
#3 Merge two solutions based on a given pattern. [ ]
00110011001100110011001100110011 Mutate operator 00100011011100110011001100100011 [Flip bit] [Flip bit] Inverse bits
on a given probability [ ] Mutation ratio Solution #1 Solution #2
1. Select N random possible solutions in space 2. Appy
Fitness function on selected solutions 3. Sort selected solution by Fitness 4. Extract best solution 5. Is best a valid solution? Yes => STOP 6. Crossover best solution with other solutions 7. Mutate new solutions 8. Add best to avoid regression
Twitter @JBaptisteClion Evoria - GitLab https://gitlab.com/JBClion/Evoria Speakerdeck https://speakerdeck.com/jbclion/web-ga-webzueri Evoria https://evoria-1984.firebaseapp.com
All you need! Example - GitLab https://gitlab.com/JBClion/GA-SIMPLE Long Talk https://www.youtube.com/watch?v=_xVlLHHb-Nw