Add disambiguated WordNet dataset with name+definition format

MixedHop-RandomNegatives-Pairs/test.parquet

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MixedHop-RandomNegatives-Pairs/train.parquet

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MixedHop-RandomNegatives-Pairs/val.parquet

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MixedHop-RandomNegatives-Triplets/test.parquet

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MixedHop-RandomNegatives-Triplets/train.parquet

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MixedHop-RandomNegatives-Triplets/val.parquet

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README.md

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+# WordNetNoun (Disambiguated Version)
+
+This is a **disambiguated version** of the WordNet Noun hierarchy dataset, where entity names are formatted as `name: definition` to resolve polysemy issues.
+
+## Disambiguation
+
+**Original format (ambiguous):**
+```
+child: "bank"
+parent: "slope"
+```
+
+**New format (disambiguated):**
+```
+child: "bank: sloping land (especially the slope beside a body of water)"
+parent: "slope: an elevated geological formation"
+```
+
+## Problem Solved
+
+In the original dataset, the word "bank" appears with multiple meanings:
+- bank.n.01: "sloping land" → parent: slope
+- bank.n.09: "a building in which banking transacted" → parent: depository  
+- bank.n.10: "flight maneuver" → parent: flight maneuver
+- ... (8 different senses total)
+
+This caused **training signal conflicts** where the same text "bank" needed to be embedded close to multiple different parents simultaneously.
+
+## Dataset Structure
+
+Following the same structure as [Hierarchy-Transformers/WordNetNoun](https://huggingface.co/datasets/Hierarchy-Transformers/WordNetNoun):
+
+- `MixedHop-RandomNegatives-Pairs/`: (child, parent, label) format for evaluation
+- `MixedHop-RandomNegatives-Triplets/`: (child, parent, negative) format for training
+
+Each contains train/val/test splits in parquet format.
+
+## Statistics
+
+- **Train**: 750,915 pairs / 682,650 triplets
+- **Val**: 364,925 pairs / 331,750 triplets  
+- **Test**: 364,936 pairs / 331,760 triplets
+- **Total entities**: 74,401 (with definitions)
+
+## Source
+
+- **Original data**: [Zenodo 10511042](https://doi.org/10.5281/zenodo.10511042)
+- **Modification**: Added WordNet definitions to entity names for disambiguation
+- **Code**: Modified `hierarchy_transformers.datasets.load` module
+
+## Usage
+
+```python
+from datasets import load_dataset
+
+# Load disambiguated dataset
+ds = load_dataset("Jinrui/WordNetNoun", "MixedHop-RandomNegatives-Pairs")
+
+# Example
+print(ds['train'][0])
+# {
+#   'child': 'boarhound: large hound used in hunting wild boars',
+#   'parent': 'hound: any of several breeds of dog used for hunting...',
+#   'label': 1
+# }
+```
+
+## Citation
+
+If you use this dataset, please cite the original HierarchyTransformers paper:
+
+```bibtex
+@inproceedings{he2024language,
+  title={Language Models as Hierarchy Encoders},
+  author={He, Yuan and Yuan, Zhangdie and Chen, Jiaoyan and Horrocks, Ian},
+  booktitle={Advances in Neural Information Processing Systems},
+  year={2024}
+}
+```
+
+## License
+
+Same as the original dataset (Apache 2.0).
+