Malinda

The Numpy [API documentation](https://numpy.org/doc/stable/reference/generated/numpy.linalg.multi_dot.html) recommends using `np.linalg.multi_dot` instead of multiple `np.dot` calls since it is more succinct and effective. This PR is to make the required changes.

-------- Pull Request Description -------- ##### What issue does this change request address? (Use "#" before the issue to link it, i.e., #42.) This is to make the code more...

Hi Maintainers of this repo, Thank you very much for your excellent work, I am new to this repository. I am a researcher studying the best practices of evolving data...

Hi, Thank you very much for your excellent work in [qb](https://github.com/Pinafore/qb). I am a graduate student at the University of Colorado, studying the best practices of evolving ML codes. From...