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Open standard for mathematical programming interoperability

License: Apache License 2.0

Rust 38.45% Python 61.55%

mathematical-programming ommx optimization

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Modeler API for quadradic and polynomials

#68 only added API for linear function.

Set labels to Pull Requests by GitHub Actions

There are three labels for PR

proto
python
rust

each of which corresponds to the API changes. I'd like to set these labels automatically by Action based on the diff of PR.

Add CITATION file

https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-citation-files

Setup CLA (contributor license agreement)

https://cla-assistant.io/

Quadratic term cannot be created by * operator

In ommx version 1.1.0, the following code raises a RecursionError:

import ommx.v1 as ommx

def qubo_to_ommx(qubo: dict[tuple[int, int], float]):
    spins = {}
    def get_spin(i):
        if i not in spins:
            spins[i] = ommx.DecisionVariable.binary(i)
        return spins[i]
    objective = 0
    for (i, j), value in qubo.items():
        spin_i = get_spin(i)
        spin_j = get_spin(j)
        objective += value * spin_i * spin_j
    return objective

qubo_to_ommx({(0, 1): 1, (1, 2): 1, (2, 0): -1})

Upon execution, a RecursionError occurs:

---------------------------------------------------------------------------
RecursionError                            Traceback (most recent call last)
Cell In[29], line 14
     11         objective += value * spin_i * spin_j
     12     return objective
---> 14 qubo_to_ommx({(0, 1): 1, (1, 2): 1, (2, 0): -1})

Cell In[29], line 11
      9     spin_i = get_spin(i)
     10     spin_j = get_spin(j)
---> 11     objective += value * spin_i * spin_j
     12 return objective

File ~/.venv/lib/python3.10/site-packages/ommx/v1/__init__.py:496, in DecisionVariable.__rmul__(self, other)
    495 def __rmul__(self, other) -> Linear:
--> 496     return self * other

File ~/.venv/lib/python3.10/site-packages/ommx/v1/__init__.py:588, in Linear.__rmul__(self, other)
    587 def __rmul__(self, other) -> Linear:
--> 588     return self * other

File ~/.venv/lib/python3.10/site-packages/ommx/v1/__init__.py:496, in DecisionVariable.__rmul__(self, other)
    495 def __rmul__(self, other) -> Linear:
--> 496     return self * other
...
    583             constant=self.raw.constant * other,
    584         )
    585     return NotImplemented

RecursionError: maximum recursion depth exceeded while calling a Python object

Push/Pull OMMX binaries to GitHub container registry (ghcr.io)

Requires #18

Clarification needed on the triangularity of the Quadratic message in OMMX

I have a question regarding the definition of the Quadratic message in OMMX.

ommx/proto/ommx/v1/quadratic.proto

Line 11 in 621a64a

message Quadratic {

In the current implementation, is the Quadratic message defined to be strictly an upper triangular matrix, or is it allowed to be a general square matrix?
I couldn't find a clear specification on this in the documentation, so I would appreciate if you could clarify this point.

Python API reference

Create API reference for Python API like

and add link to it in README

Save/Load OMMX binaries to local filesystem

We have to add a metadata in addition to the protobuf binaries when storing it on local disk (this issue) or container registry #20 in order to distinguish what the binary data means.
TBW

Publish to Buf Schema Registry

https://buf.build/docs/bsr/introduction

Release note generator setting

Setting for https://docs.github.com/ja/repositories/releasing-projects-on-github/automatically-generated-release-notes, Related to #13

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