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This forum is available for those who have questions about using the Python inspyred library for bio-inspired computing. The posts are monitored regularly, and help can usually be offered quickly.

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Lu Hong, Aaron Garrett2

3/27/22

Questions about including multiple variators

The variators act as a pipeline. The parent selection determines the initial candidates. Then each

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Questions about including multiple variators

The variators act as a pipeline. The parent selection determines the initial candidates. Then each

3/27/22

Sam N, … Aaron Garrett3

9/1/21

ES - diversity over generations

I apologize for not seeing this sooner. Somehow it was funneled to spam. Just to add to Mark's

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ES - diversity over generations

I apologize for not seeing this sooner. Somehow it was funneled to spam. Just to add to Mark's

9/1/21

7/23/21

Selector from human input

For an ongoing research we need to handle human feedback between generations. What would be the best

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Selector from human input

For an ongoing research we need to handle human feedback between generations. What would be the best

7/23/21

Bas van Dam, Aaron Garrett5

6/1/20

Is there an example optimization with mixed variables (continuous and discrete variables)?

Here's some untested code that should at least get you close: def my_crossover(random, candidates

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Is there an example optimization with mixed variables (continuous and discrete variables)?

Here's some untested code that should at least get you close: def my_crossover(random, candidates

6/1/20

space.a...@gmail.com, Aaron Garrett2

4/1/20

Alleleplot -> AttributeError: module 'matplotlib.pyplot' has no attribute 'array'

My guess is that Matplotlib changed their API and you're using a newer version that doesn't

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Alleleplot -> AttributeError: module 'matplotlib.pyplot' has no attribute 'array'

My guess is that Matplotlib changed their API and you're using a newer version that doesn't

4/1/20

space.a...@gmail.com, Aaron Garrett2

3/25/20

Discarding individuals from generation

Well, if you set the fitness of such an individual to be a maximum (if minimizing) or minimum (if

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Discarding individuals from generation

Well, if you set the fitness of such an individual to be a maximum (if minimizing) or minimum (if

3/25/20

bhi...@gmail.com, Aaron Garrett4

2/16/20

Output of candidate solution

Yes. That example assumes you just have a bitstring encoding (as in a canonical GA). Operators are

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Output of candidate solution

Yes. That example assumes you just have a bitstring encoding (as in a canonical GA). Operators are

2/16/20

bhi...@gmail.com, Aaron Garrett6

2/16/20

Multi candidate structure

The whole thing was correct. The args are passed in through evolve just like you presumed. -- Aaron

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Multi candidate structure

The whole thing was correct. The args are passed in through evolve just like you presumed. -- Aaron

2/16/20

jameslau...@gmail.com, Aaron Garrett6

11/7/19

Very new to genetic algorithms

Awesome. Thanks so much. Best, Jamey On Wednesday, November 6, 2019 at 6:28:03 PM UTC-5, Aaron

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Very new to genetic algorithms

Awesome. Thanks so much. Best, Jamey On Wednesday, November 6, 2019 at 6:28:03 PM UTC-5, Aaron

11/7/19

marjorie...@uconn.edu, … mlibe...@gmail.com13

8/18/19

Custom Generator and Evaluator with NSGA2 with binary solutions

The input data are property attributes for my study area - eg, total area, total cost, amount of area

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Custom Generator and Evaluator with NSGA2 with binary solutions

The input data are property attributes for my study area - eg, total area, total cost, amount of area

8/18/19

sambitn...@gmail.com, Aaron Garrett2

7/22/19

Using Black Box models in Inspyred

As long as you can invoke the black box and then read in the result to determine fitness, then you

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Using Black Box models in Inspyred

As long as you can invoke the black box and then read in the result to determine fitness, then you

7/22/19

sambitn...@gmail.com, Aaron Garrett3

7/22/19

How to use all processor cores in optimization?

Thanks a lot Aaron. We are using parallel evaluation and working just fine. :) On Friday, May 31,

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How to use all processor cores in optimization?

Thanks a lot Aaron. We are using parallel evaluation and working just fine. :) On Friday, May 31,

7/22/19

penaflo...@gmail.com, Aaron Garrett3

1/10/19

Various NSGA-II concerns

Thank you very much professor! It's a great help for me. On Fri, Jan 11, 2019, 1:29 AM Aaron

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Various NSGA-II concerns

Thank you very much professor! It's a great help for me. On Fri, Jan 11, 2019, 1:29 AM Aaron

1/10/19

sucheth...@gmail.com, Aaron Garrett5

12/20/18

Using Inspyred for Feature Selection

Thank you for the solution Regards Suchetha

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Using Inspyred for Feature Selection

Thank you for the solution Regards Suchetha

12/20/18

eknoch...@gmail.com, Aaron Garrett2

11/15/18

Multi-objective Optimization - Defining Custom Objective Functions and Evaluator

See if this fixes your code: https://repl.it/@agarrett/InspyredForumPost14Nov2018 On Wed, Nov 14,

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Multi-objective Optimization - Defining Custom Objective Functions and Evaluator

See if this fixes your code: https://repl.it/@agarrett/InspyredForumPost14Nov2018 On Wed, Nov 14,

11/15/18

a...@simerics.com, Aaron Garrett2

11/13/18

Multi-objective optimization using discrete set of points defining the objective functions

I apologize. I don't understand the scenario you're describing, but you don't have to

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Multi-objective optimization using discrete set of points defining the objective functions

I apologize. I don't understand the scenario you're describing, but you don't have to

11/13/18

prav...@gmail.com, Aaron Garrett5

9/26/18

Multi Objective Optimization with constraints

On Tuesday, September 25, 2018 at 5:49:52 PM UTC+5:30, Aaron Garrett wrote: > OK. Try this as a

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Multi Objective Optimization with constraints

On Tuesday, September 25, 2018 at 5:49:52 PM UTC+5:30, Aaron Garrett wrote: > OK. Try this as a

9/26/18

Vibes S., Aaron Garrett5

9/19/18

Implementing multi objective evolutionary optimization with custom input variables

Thank you for your reply. Yes, you are right. The reason I was trying to use multi objective/

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Implementing multi objective evolutionary optimization with custom input variables

Thank you for your reply. Yes, you are right. The reason I was trying to use multi objective/

9/19/18

9/13/18

Re: [inspyred] multiprocessing applies threading instead of multiple processors

The multiprocessing in inspyred just uses the Python standard multiprocessing library. So my guess

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Re: [inspyred] multiprocessing applies threading instead of multiple processors

The multiprocessing in inspyred just uses the Python standard multiprocessing library. So my guess

9/13/18

Nelda Liebenberg, Aaron Garrett4

9/11/18

NSGA-II binary solution success limitations

OK. So my understanding of your problem is that you really have some kind of multiobjective variant

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NSGA-II binary solution success limitations

OK. So my understanding of your problem is that you really have some kind of multiobjective variant

9/11/18

Nelda Liebenberg

9/10/18

Binary limitations

Hi, I was looking through Aaron Garrett's example of an Inspyred NSGA-II problem (see attached

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Binary limitations

Hi, I was looking through Aaron Garrett's example of an Inspyred NSGA-II problem (see attached

9/10/18

Ptr Schttl, … Mark Coletti3

8/24/18

Preferred way to cite Inspyred

For what it's worth, this is the bibtex record I used to cite inspyred: @online{inspyred, Author

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Preferred way to cite Inspyred

For what it's worth, this is the bibtex record I used to cite inspyred: @online{inspyred, Author

8/24/18

Adam Kow, Aaron Garrett2

8/10/18

Using PSO for TSP problem

Well, the PSO (as implemented) is for continuous problems, not discrete problems like the TSP. So it

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Using PSO for TSP problem

Well, the PSO (as implemented) is for continuous problems, not discrete problems like the TSP. So it

8/10/18

marjorie...@uconn.edu, … Aaron Garrett11

6/8/18

Premature Convergence

If you're comfortable sharing the script to the forum, I think it would help to see it. If you

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Premature Convergence

If you're comfortable sharing the script to the forum, I think it would help to see it. If you

6/8/18

peter.s...@gmail.com, Aaron Garrett7

3/23/18

DEA, heuristic_crossover, gaussian_mutation

Yes... that must be true. Not what I intended, but true nonetheless. On Fri, Mar 23, 2018 at 9:43 AM

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DEA, heuristic_crossover, gaussian_mutation

Yes... that must be true. Not what I intended, but true nonetheless. On Fri, Mar 23, 2018 at 9:43 AM

3/23/18

Aaron Garrett, … Will Tsing10

1/9/18

Re: Support for constrained multiobjective optimization

I think you should be able to adapt the previous answer to do what you want, yes. I don't see any

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Re: Support for constrained multiobjective optimization

I think you should be able to adapt the previous answer to do what you want, yes. I don't see any

1/9/18

Will Tsing, Aaron Garrett2

11/14/17

Correct ways to save evaluation informations to a self defined file

Look at the Lunar Explorer example (http://pythonhosted.org/inspyred/tutorial.html#id11) to see how

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Correct ways to save evaluation informations to a self defined file

Look at the Lunar Explorer example (http://pythonhosted.org/inspyred/tutorial.html#id11) to see how

11/14/17

Andrew Dunn, … Mark Coletti14

10/10/17

Implementing a Distributed Pool Architecture within inspyred

On Friday, November 4, 2016 at 2:01:38 PM UTC-4, Arthur-Ervin Avramiea wrote: Fixed using python

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Implementing a Distributed Pool Architecture within inspyred

On Friday, November 4, 2016 at 2:01:38 PM UTC-4, Arthur-Ervin Avramiea wrote: Fixed using python

10/10/17

pedro.s...@gmail.com

7/25/17

Inspyred vs other open source python libraries such as PyGMO, Platypus, or DEAP

Hello, I need an open source multiobjective optimization python library and I can't decide

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Inspyred vs other open source python libraries such as PyGMO, Platypus, or DEAP

Hello, I need an open source multiobjective optimization python library and I can't decide

7/25/17

a3725...@gmail.com, Aaron Garrett4

4/23/17

Optimization Problem with Equal and Inequal constraints

Pass it in as a seed. baseline_candidate = [8, 6, 7, 5, 3, 0, 9] ... ec.evolve(my_generator,

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Optimization Problem with Equal and Inequal constraints

Pass it in as a seed. baseline_candidate = [8, 6, 7, 5, 3, 0, 9] ... ec.evolve(my_generator,

4/23/17

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