# Doug Rank

**Statistics**

RANK**9,182**

of 242,482

REPUTATION**3**

CONTRIBUTIONS

**15** Questions

**2** Answers

ANSWER ACCEPTANCE **
20.0%
**

VOTES RECEIVED**3**

RANK

of 16,994

REPUTATION**N/A**

AVERAGE RATING**0.00**

CONTRIBUTIONS**0** Files

DOWNLOADS **0**

ALL TIME DOWNLOADS**0**

CONTRIBUTIONS**0 Posts**

CONTRIBUTIONS**0** Public Channels

AVERAGE RATING

CONTRIBUTIONS**0** Highlights

AVERAGE NO. OF LIKES

**Content Feed**

Question

Genetic algorithm custom crossover/mutation argument questions

Hi, I have custom crossover and mutation functions for an implementation of MATLAB's build-in genetic algorithm (ga). I was ab...

6 months ago | 1 answer | 0

### 1

answerQuestion

Is there a way to save additional information in a custom crossover function for the ga and then pass it to the output function?

I have custom crossover, mutation, and output functions for my implementation of the ga (genetic algorithm). I would like to be...

6 months ago | 1 answer | 0

### 1

answerQuestion

Is there a bug in the genetic algorithm (ga) under certain conditions?

I discovered some abnormal behavior in the ga when I made changes. The fitness function is evaluated far more times than I wo...

7 months ago | 1 answer | 0

### 1

answerQuestion

Unable to import matlab.engine into PyCharm environment

The Mathworks instructions were not sufficient for me, but I was able to follow the advice from this link to patch up the differ...

1 year ago | 0 answers | 1

### 0

answersQuestion

Is it not possible to call a Matlab .DLL from .NET in parallel?

I have a compiled Matlab DLL called "GeneticAlgorithmOptimizer.dll" with a class/method "gaOptimizer.optimize()" that uses said ...

2 years ago | 0 answers | 0

### 0

answersQuestion

Does encoding method matter in Genetic Algorithm with linear+integer constraints, with respect to crossover?

(Preface: There are a few details here that may raise yellow/red flags to a reader. Rest assured that the choice of algorithm a...

2 years ago | 1 answer | 0

### 1

answerI have a large array of small integer inputs and want to create a small array of Double outputs. Best machine learning approach?

Thank you! I will check out those options and see which are appropriate.

2 years ago | 0

Question

I have a large array of small integer inputs and want to create a small array of Double outputs. Best machine learning approach?

I have a large amount of training data (about 10,000) wherein I have a large array (~500,000) of small integer inputs (typically...

2 years ago | 2 answers | 0

### 2

answersQuestion

MKL 2018 supposedly supports integer matrix multiplication. Can this feature be added to Matlab?

According to the bottom answer on this link, the reason why Matlab hasn't included support for matrix multiplication on integer ...

2 years ago | 1 answer | 0

### 1

answerQuestion

Could I see a significant time boost using int16 instead of double on large array operations?

I am using the genetic algorithm with a custom fitness function that is necessarily very complicated. Many addition/subtraction...

2 years ago | 1 answer | 0

### 1

answerQuestion

Is there an Optimization tool like intlinprog that includes nonlinear constraints?

I have a program that uses the genetic algorithm in matlab to optimize the solution. Historically, I have used intlinprog befor...

3 years ago | 1 answer | 1

### 1

answerQuestion

Is there a simple way to convert all fields of a struct to local variables?

I have a matlab program with a lot of variables (boolean, arrays, doubles, logicals, strings), to the point where it becomes unw...

3 years ago | 2 answers | 0

### 2

answersQuestion

Is it possible to use a different fitness function for certain population members in the Genetic Algorithm?

I am using the genetic algorithm to solve a integer (binary) problem with linear constraints. Because the solution space is s...

3 years ago | 0 answers | 1

### 0

answersRunning on AWS server does not benefit from more cores in parallel pool?

I believe I have investigated using other options, but none of them had the necessary components. The objective function is w...

4 years ago | 0

Question

Running on AWS server does not benefit from more cores in parallel pool?

I am using the built in Genetic Algorithm functionality in the Optimization Toolbox and time is a serious constraint when runnin...

4 years ago | 2 answers | 0

### 2

answersQuestion

What are some methods to maintain population diversity in genetic algorithm (binary, linear constraints)?

I am using the built in ga() function to solve a problem whose solution is represented by a binary vector of length ~300. There...

4 years ago | 1 answer | 0

### 1

answerQuestion

Is there a way to use a custom method for the linkage function?

I can see <https://www.mathworks.com/help/stats/linkage.html#inputarg_method here> that using Z = linkage(X,method,metric) allow...

4 years ago | 0 answers | 0