Boltzmann Machine Implementation

[Bhaney44]

Hi,

I hope this note finds everyone well. I am working on implementing a Boltzmann Machine (BM) and am having some trouble. I started a repository for the project. The repository has the complete code as well as some of my other Leap code examples. I tried to start by logging into LEAP and running the following code in a Jupyter Notebook to setup a Graph and BM object:

from dwave_bm.rbm import BM

# Model dimensions.
num_visible = 10

# the hidden layer is a bipartite graph of 9 by 5
num_hidden = [9, 5] 

# Create the Boltzmann machine object
r = BM(num_visible=num_visible, num_hidden=num_hidden)
r

However, I am getting a response:

ModuleNotFoundError: No module named 'dwave_bm'

I am not sure what is causing the error. I am also having a lot of trouble finding documentation for the dwave_bm module. I am considering trying to use the dwave_networkx package instead, to try and create a BM using a a graph. An additional questions is whether the fact I am running the system through a Jupyter notebook could be causing the problem. I am wondering whether if I ran the script from the command line, I may have more success.

Generally, my goal is to implement a simple BM model on the QPU, as demonstrated in John Dorband's paper A Boltzmann Machine Implementation for the D-Wave. I will probably use the MNIST Dataset , because it was the one John use and it seems the most straightforward.

In sum, I would really appreciate any thoughts, guidance, or suggestions on how to proceed.

With thanks,

Brian

[randomir]

Hi Brian, the module you're referring to, dwave_bm was privately available to a customer of D-Wave. It is not publicly available, nor it is open-sourced.

[Bhaney44]

Yeah it was available to me during a course I took, as a customer, to learn about programming the D-Wave Machine. Is it no longer available to me?

[randomir]

I'm not sure if those materials are still available to you, you should check with the course organizer. But dwave_bm package is not publicly available.

[Bhaney44]

I'm not sure if those materials are still available to you, you should check with the course organizer. But dwave_bm package is not publicly available.

I actually don't remember who the course organizer was or their contact information. However, I would like access to dwave_bm. Is there a contact method you may be able to provide, or other information on how I can gain access? Thanks!

[randomir]

Hey Brian, unfortunately that package is no longer available. Even if it would be made available for you, you still wouldn't be able to use it with our stable/supported libraries.

We don't discuss BMs in our docs, but this page might be a good starting point if you decide to implement it yourself.

[Bhaney44]

Ok - Thank you.