uhh-lt/Taxonomy_Refinement_Embeddings

Leverages Poincaré embeddings in hyperbolic space to detect and correct misplaced hyponyms and reconnect orphaned terms in pre-induced taxonomies, outperforming Euclidean embeddings on hierarchical lexical relationships. The pipeline operates on partial taxonomies from existing systems (TAXI, USAAR, JUNLP) across multiple languages and domains, comparing word2vec and hyperbolic embeddings trained on both WordNet and noisy corpus-extracted relations. Achieves state-of-the-art results on SemEval-2016 Task 13 taxonomy extraction benchmarks.

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