Papers by José A. R. Fonollosa
Multilingual Machine Translation: Closing the Gap between Shared and Language-specific Encoder-Decoders (2021.eacl-main)
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| Challenge: | State-of-the-art multilingual machine translation relies on a universal encoder-decoder, which requires retraining the entire system to add new languages. |
| Approach: | They propose an encoder-decoder approach that can be extended to new languages by learning their corresponding modules. |
| Outcome: | The proposed approach outperforms the universal encoder-decoder by 3.28 BLEU points on average while allowing to add new languages without retraining the rest of the modules. |
Automatic Spanish Translation of SQuAD Dataset for Multi-lingual Question Answering (2020.lrec-1)
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| Challenge: | Existing methods to train multilingual QA systems are limited for other languages . cross-lingual learning is a technique that transfers knowledge from source to target language with fewer training data. |
| Approach: | They propose a translation method to translate the Stanford Question Answering Dataset to Spanish and a multilingual-BERT model to train Spanish QA systems. |
| Outcome: | The proposed method outperforms the previous benchmarks for cross-lingual extractive QA. |
From Bilingual to Multilingual Neural Machine Translation by Incremental Training (P19-2)
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| Challenge: | Existing approaches to multilingual neural machine translation are based on task specific models and the addition of one more language is only possible by retraining the whole system. |
| Approach: | They propose a training schedule that scales to more languages without modification of previous components. |
| Outcome: | The proposed training schedule shows close results to state-of-the-art in the WMT task. |
Combining Subword Representations into Word-level Representations in the Transformer Architecture (2020.acl-srw)
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| Challenge: | Currently dominant approaches use word-level tokens, but this increases the length of the sequences and makes it difficult to profit from word-based information. |
| Approach: | They propose to combine subword-level representations into word-level ones in the first layers of the encoder, reducing the effective length of the sequences in the following layers. |
| Outcome: | The proposed model maintains translation quality with no extra word-level information . it is superior to the current dominant method for incorporating word- level source language information a priori . |