QUBOLib.jl

QUBO Instances for benchmarking

Introduction

This package provides a wrapper around QUBOLibData.jl's artifact to easily access QUBO / Ising instances. Instances are retrieved as model objects from QUBOTools.jl.

Getting Started

Installation

julia> import Pkg; Pkg.add(url="https://github.com/pedromxavier/QUBOLib.jl")

julia> using QUBOLib

Example

julia> coll = first(list_collections())   # get code of the first registered collection

julia> inst = first(list_instances(coll)) # get code of the first instance from that collection

julia> model = load_instance(coll, inst)  # retrieve QUBOTools model

Accessing the instance index database

Warning This requires SQLite.jl and DataFrames.jl to be installed.

julia> using SQLite, DataFrames

julia> db = QUBOLib.database()

julia> df = DBInterface.execute(
           db,
           "SELECT collection, instance FROM instances WHERE size BETWEEN 100 AND 200;"
       ) |> DataFrame

julia> models = [
           load_instance(coll, inst)
           for (coll, inst) in zip(df[!, :collection], df[!, :instance])
       ]