Bilingual Lexicon Induction through Unsupervised Machine Translation
Table 2: Results of the proposed method in comparison to previous work (P@1). All systems are fully unsupervised and use fastText embeddings trained on Wikipedia with the same hyperparameters.
['[EMPTY]', 'en-es →', 'en-es ←', 'en-fr →', 'en-fr ←', 'en-de →', 'en-de ←', 'en-ru →', 'en-ru ←', 'avg.']
As it can be seen, our proposed method obtains the best published results in all language pairs and directions, outperforming the previous state-of-the-art by a substantial margin. Note, moreover, that these previous systems mostly differ in their cross-lingual mapping algorithm and not the retrieval method, so our improvements are orthogonal.