ommx.dataset

Functions

`miplib2017`(→ ommx.v1.Instance)	Load a MIPLIB 2017 instance as OMMX Artifact.
`miplib2017_instance_annotations`(→ dict[str, dict[str, ...)	Return MIPLIB 2017 instance annotations.

Module Contents

ommx.dataset.miplib2017(name: str) → ommx.v1.Instance

Load a MIPLIB 2017 instance as OMMX Artifact.

>>> from ommx.dataset import miplib2017
>>> instance = miplib2017("air05")

Common annotations

>>> instance.title
'air05'
>>> instance.authors
['G. Astfalk']
>>> instance.license
'CC-BY-SA-4.0'
>>> instance.num_variables
7195
>>> instance.num_constraints
426

MIPLIB-specific annotations are stored with org.ommx.miplib.* keys.

>>> instance.annotations["org.ommx.miplib.binaries"]
'7195'
>>> instance.annotations["org.ommx.miplib.integers"]
'0'
>>> instance.annotations["org.ommx.miplib.continuous"]
'0'
>>> instance.annotations["org.ommx.miplib.non_zero"]
'52121'

>>> instance.annotations["org.ommx.miplib.status"]
'easy'
>>> instance.annotations["org.ommx.miplib.objective"]
'26374'
>>> instance.annotations["org.ommx.miplib.url"]
'https://miplib.zib.de/instance_details_air05.html'
>>> instance.annotations["org.ommx.miplib.tags"]
'benchmark,binary,benchmark_suitable,set_partitioning'

ommx.dataset.miplib2017_instance_annotations() → dict[str, dict[str, str]]

Return MIPLIB 2017 instance annotations.

>>> from ommx.dataset import miplib2017_instance_annotations
>>> annotations = miplib2017_instance_annotations()
>>> sorted(annotations.keys())
['10teams', ..., 'air05', ...]
>>> annotations["air05"]["org.ommx.miplib.status"]
'easy'