# Quadratic Assignment Problem on QAP-chr12a

Source: [Quadratic Assignment Problem on QAP-chr12a](<https://www.sota2.com/research/sota/quadratic-assignment-problem-on-qap-chr12a>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2026-02-26T05:51:58.858Z

Evaluation results for the Quadratic Assignment Problem instance 'chr12a' from QAPLIB, reporting summary statistics such as Mean Cost and Rank.

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

| Scope | Recorded value |
| --- | --- |
| Task | Quadratic Assignment Problem |
| Dataset (including any stated split) | QAP-chr12a |
| Metric | Mean Cost |
| Unit | SCALAR |
| Direction | Lower is better |
| Results loaded | 9 of 9 |
| Coverage | All results currently returned for this benchmark |

Evaluation settings may differ between results. The original papers and recorded configurations are needed to establish comparability. A shared metric name alone does not establish an identical protocol.

## Metrics

- [Mean Cost](<https://www.sota2.com/research/sota/quadratic-assignment-problem-on-qap-chr12a.md?metric=Mean%20Cost>): Lower is better; unit: SCALAR.

- [Standard Error](<https://www.sota2.com/research/sota/quadratic-assignment-problem-on-qap-chr12a.md?metric=Standard%20Error>): Lower is better; unit: SCALAR.

- [Rank](<https://www.sota2.com/research/sota/quadratic-assignment-problem-on-qap-chr12a.md?metric=Rank>): Lower is better; unit: SCALAR.

## Recorded results

| Method | Mean Cost | Result date | Report paper |
| --- | --- | --- | --- |
| q-EST | 11790 | Not recorded | 68fa6e761e209131cea4006b |
| LAW-EI | 11914 | Not recorded | 68fa6e761e209131cea4006b |
| LAW-EST | 12067 | Not recorded | 68fa6e761e209131cea4006b |
| q-EI | 12769 | Not recorded | 68fa6e761e209131cea4006b |
| MACE-UCB | 13440 | Not recorded | 68fa6e761e209131cea4006b |
| MACE-EST | 14126 | Not recorded | 68fa6e761e209131cea4006b |
| DPP-MAX-EST | 14732 | Not recorded | 68fa6e761e209131cea4006b |
| BUCB | 18105 | Not recorded | 68fa6e761e209131cea4006b |
| DPP-SMP-EST | 19970 | Not recorded | 68fa6e761e209131cea4006b |

### q-EST

Mean Cost: 11790. Result ID: 699031463a6c314849fec900.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6e761e209131cea4006b.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa58231e209131ce9ab9df.md>)

Recorded evaluation configuration: {"Batch":5}. This record does not assert independent reproduction.

### LAW-EI

Mean Cost: 11914. Result ID: 699031463a6c314849fec901.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6e761e209131cea4006b.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6e761e209131cea4006b.md>)

[Implementation](<https://github.com/ChangYong-Oh/LAW2ORDER>)

Recorded evaluation configuration: {"Batch":5}. This record does not assert independent reproduction.

### LAW-EST

Mean Cost: 12067. Result ID: 699031463a6c314849fec902.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6e761e209131cea4006b.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6e761e209131cea4006b.md>)

[Implementation](<https://github.com/ChangYong-Oh/LAW2ORDER>)

Recorded evaluation configuration: {"Batch":5}. This record does not assert independent reproduction.

### q-EI

Mean Cost: 12769. Result ID: 699031463a6c314849fec8ff.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6e761e209131cea4006b.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa58231e209131ce9ab9df.md>)

Recorded evaluation configuration: {"Batch":5}. This record does not assert independent reproduction.

### MACE-UCB

Mean Cost: 13440. Result ID: 699031463a6c314849fec8fd.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6e761e209131cea4006b.md>)

Recorded evaluation configuration: {"Batch":5}. This record does not assert independent reproduction.

### MACE-EST

Mean Cost: 14126. Result ID: 699031463a6c314849fec8fe.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6e761e209131cea4006b.md>)

Recorded evaluation configuration: {"Batch":5}. This record does not assert independent reproduction.

### DPP-MAX-EST

Mean Cost: 14732. Result ID: 699031463a6c314849fec8fb.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6e761e209131cea4006b.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa62d71e209131ce9fb8b8.md>)

Recorded evaluation configuration: {"Batch":5}. This record does not assert independent reproduction.

### BUCB

Mean Cost: 18105. Result ID: 699031463a6c314849fec8fa.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6e761e209131cea4006b.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa60a01e209131ce9f0479.md>)

Recorded evaluation configuration: {"Batch":5}. This record does not assert independent reproduction.

### DPP-SMP-EST

Mean Cost: 19970. Result ID: 699031463a6c314849fec8fc.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6e761e209131cea4006b.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa62d71e209131ce9fb8b8.md>)

Recorded evaluation configuration: {"Batch":5}. This record does not assert independent reproduction.

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