# Hierarchical Ancestor Retrieval on WordNet noun hierarchy (100 stratified leaf nodes)

Source: [Hierarchical Ancestor Retrieval on WordNet noun hierarchy (100 stratified leaf nodes)](<https://www.sota2.com/research/sota/hierarchical-ancestor-retrieval-on-wordnet-noun-hierarchy-100-stratified-leaf-nodes>)

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

Data updated: 2026-03-11T07:02:32.901Z

Evaluation of Hierarchical Ancestor Retrieval performance on the specific subset of WordNet consisting of 100 stratified leaf nodes, measured using metrics like Kendall τ, Recall@k, and MRR.

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 | Hierarchical Ancestor Retrieval |
| Dataset (including any stated split) | WordNet noun hierarchy (100 stratified leaf nodes) |
| Metric | Kendall's τ |
| Unit | SCALAR |
| Direction | Higher is better |
| Results loaded | 1 of 1 |
| 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

- [Kendall's τ](<https://www.sota2.com/research/sota/hierarchical-ancestor-retrieval-on-wordnet-noun-hierarchy-100-stratified-leaf-nodes.md?metric=Kendall%27s%20%CF%84>): Higher is better; unit: SCALAR.

- [Recall@1](<https://www.sota2.com/research/sota/hierarchical-ancestor-retrieval-on-wordnet-noun-hierarchy-100-stratified-leaf-nodes.md?metric=Recall%401>): Higher is better; unit: PERCENT.

- [Recall@2](<https://www.sota2.com/research/sota/hierarchical-ancestor-retrieval-on-wordnet-noun-hierarchy-100-stratified-leaf-nodes.md?metric=Recall%402>): Higher is better; unit: PERCENT.

- [Precision@0.5](<https://www.sota2.com/research/sota/hierarchical-ancestor-retrieval-on-wordnet-noun-hierarchy-100-stratified-leaf-nodes.md?metric=Precision%400.5>): Higher is better; unit: PERCENT.

- [MRR (focus)](<https://www.sota2.com/research/sota/hierarchical-ancestor-retrieval-on-wordnet-noun-hierarchy-100-stratified-leaf-nodes.md?metric=MRR%20(focus)>): Higher is better; unit: SCALAR.

- [Avg. Peaks/Node](<https://www.sota2.com/research/sota/hierarchical-ancestor-retrieval-on-wordnet-noun-hierarchy-100-stratified-leaf-nodes.md?metric=Avg.%20Peaks%2FNode>): Higher is better; unit: SCALAR.

## Recorded results

| Method | Kendall's τ | Result date | Report paper |
| --- | --- | --- | --- |
| BoundaryScan | 0.79 | Not recorded | 69b0f6f12d603e6de3e45c21 |

### BoundaryScan

Kendall's τ: 0.79. Result ID: 69b1128e6dbb7075b95ae96d.

[Reporting paper](<https://www.sota2.com/research/paper/69b0f6f12d603e6de3e45c21.md>)

[Method origin paper](<https://www.sota2.com/research/paper/69b0f6f12d603e6de3e45c21.md>)

Recorded evaluation configuration: {"Embedding":"Poincaré embeddings","Space":"B^10","kNN Graph":"k=50"}. This record does not assert independent reproduction.

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