UnifiedOR-100K

Unified Operations Research foundation dataset combining eight heterogeneous OR benchmarks into a single schema with multi-layer representations.

Source Datasets

Source	Hub Reference	OR Layer
FrontierCO	alirezaaminzadeh/frontierco-instance-features	Combinatorial optimization + solver performance
Text2Opt-Bench	alirezaaminzadeh/opticoder-binding-cases	NL → MILP binding
OptMATH	nvidia/OptiMATH-Train	Math word problems
Learn2Zinc	alirezaaminzadeh/minizinc-debug-100k	NL → MiniZinc
RetailOpt-190	alirezaaminzadeh/retailopt-10k-verified	Retail supply-chain MILP
OR-Space	Chenyu-Zhou/OR-Space	Full-lifecycle OR workspaces
FJSSP Algorithm Selector	alirezaaminzadeh/fjssp-instance-features	Scheduling + meta-solver
SVRPBench	MBZUAI/svrp-bench	Stochastic vehicle routing

Unified Schema

Field	Type	Description
problem_id	string	Unique identifier
domain	string	Scheduling, Routing, Assignment, ...
problem_type	string	e.g. fjssp, cvrp, lot_sizing
natural_language_description	string	Human-readable problem statement
sets	object	Index sets
parameters	object	Instance parameters
variables	object	Decision variables
objective	object	Objective function
constraints	array	Constraint list
instance_data	object	Source-specific payload
solver	string	Solver used
solver_status	string	optimal / feasible / time_limit
optimal_objective	float	Best objective value
best_bound	float	Dual bound
solution	object	Decision values
runtime	float	Solve time (seconds)
difficulty	string	easy / medium / hard / expert
source_dataset	string	Provenance label

Multi-Layer Representations

Each record includes aligned views:

• natural_language
• mathematical_formulation
• pyomo_code
• minizinc_code
• ortools_code
• solver_output
• explanation

Problem Taxonomy

Scheduling · Routing · Assignment · Packing · Facility Location · Inventory · Network Flow · Portfolio · Production · Energy

Generation

Full dataset built on Hugging Face Jobs:

hf jobs uv run -v ./src:/src scripts/run_build_job.py \
  --flavor cpu-upgrade --timeout 12h --secrets HF_TOKEN=$HF_TOKEN --detach

Related Resources

• Interactive Explorer
• Domain Classifier

Citation

@dataset{unifiedor_100k,
  title={UnifiedOR-100K: A Unified Operations Research Foundation Dataset},
  author={UnifiedOR Engineering},
  year={2026},
  publisher={Hugging Face},
  howpublished={\\url{https://huggingface.co/datasets/alirezaaminzadeh/unifiedor-100k}}
}