I'd like to choose the best algorithm for future. I found some solutions, but I didn't understand which R-Squared value is correct.

## Difference between Artificial Intelligence and Machine Learning?

What exactly is the difference between Artificial Intelligence (AI) and Machine Learning (ML). According to Wikipedia I found :

## std::function has performances issues, how to avoid it?

I have classes which allow to compound covariance functions (also called Kernels see https://stats.stackexchange.com/questions/228552/covariance-functions-or-kernels-what-exactly-are-they) and then compute the covariance given the new kernel for example :

## Learn the order of elements

I want to find an efficient way (in Perl preferably) to learn the fixed order of a family of words by comparing their order in multiple subsets of the group. (They are job parameters. There are about 30 different ones. Different jobs need different combinations of parameters & there are...

## Is there a better way to guess possible unknown variables without brute force than I am doing? Machine learning?

I have a game with the following rules:User is given fruit prices and has a chance to buy or sell items in their fruit basket every turn.