2021.naacl-srw.13@ACL

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#1 Morphology-Aware Meta-Embeddings for Tamil [PDF] [Copy] [Kimi] [REL]

Authors: Arjun Sai Krishnan ; Seyoon Ragavan

In this work, we explore generating morphologically enhanced word embeddings for Tamil, a highly agglutinative South Indian language with rich morphology that remains low-resource with regards to NLP tasks. We present here the first-ever word analogy dataset for Tamil, consisting of 4499 hand-curated word tetrads across 10 semantic and 13 morphological relation types. Using a rules-based segmenter to capture morphology as well as meta-embedding techniques, we train meta-embeddings that outperform existing baselines by 16% on our analogy task and appear to mitigate a previously observed trade-off between semantic and morphological accuracy.