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README.md
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@@ -37,26 +37,12 @@ The number of triples in each split is summarized in the table below.
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We apply filtering to keep triples with named-entities in either of head or tail (`named-entity filter`).
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Then, we remove predicates if they have less than three triples (`rare-predicate filter`).
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After the filtering, we manually remove too vague and noisy predicate, and unify same predicates with different names (see the annotation [here](https://huggingface.co/datasets/relbert/t_rex/raw/main/predicate_manual_check.csv)).
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| Dataset | `raw` | `named-entity filter` | `rare-predicate` | `unify-denoise-predicate` |
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| Triples | 20,877,472 | 12,561,573 | 12,561,250 | 432,781 |
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| Predicate | 1,616 | 1,470 | 1,237 | 246
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### Filtering to Purify the Dataset
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We reduce the size of the dataset by applying filtering based on the number of predicates and entities in the triples.
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We first remove triples that contain either of subject or object with the occurrence in the dataset that is lower than `min entity`.
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Then, we reduce the number triples in each predicate to be less than `max predicate`.
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If the number of triples in a predicate is higher than `max predicate`,
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we choose top-`max predicate` triples based on the frequency of the subject and the object, or random sampling.
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- distribution of entities
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<img src="https://huggingface.co/datasets/relbert/t_rex/resolve/main/data/stats.entity_distribution.png" alt="" width="600" style="margin-left:'auto' margin-right:'auto' display:'block'"/>
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- distribution of predicates
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<img src="https://huggingface.co/datasets/relbert/t_rex/resolve/main/data/stats.predicate_distribution.png" alt="" width="600" style="margin-left:'auto' margin-right:'auto' display:'block'"/>
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## Dataset Structure
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We apply filtering to keep triples with named-entities in either of head or tail (`named-entity filter`).
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Then, we remove predicates if they have less than three triples (`rare-predicate filter`).
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After the filtering, we manually remove too vague and noisy predicate, and unify same predicates with different names (see the annotation [here](https://huggingface.co/datasets/relbert/t_rex/raw/main/predicate_manual_check.csv)).
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Finally, we remove triples that contain enties that has frequency less than 5 (`frequnecy`).
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| Dataset | `raw` | `named-entity filter` | `rare-predicate` | `unify-denoise-predicate` | `frequnecy` |
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|:----------|-----------:|-----------------------:|-----------------:|--------------------------:|------------:|
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| Triples | 20,877,472 | 12,561,573 | 12,561,250 | 432,781 | 48,768 |
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| Predicate | 1,616 | 1,470 | 1,237 | 246 | 246 |
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## Dataset Structure
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