| Challenge: | Multilingual BERT (M-BERT) has been a huge success in both supervised and zero-shot cross-lingual transfer learning. |
| Approach: | They propose a simple but effective approach to extend multilingual BERT to any new language and show an increase in F1 on M-BERT and new languages. |
| Outcome: | The proposed approach improves on languages already in M-BERT and out of it on other languages. |
Similar Papers
How Multilingual is Multilingual BERT? (P19-1)
Copied to clipboard
| Challenge: | Existing studies have shown that deep, contextualized language models can encode syntactic and named entity information, but they have focused on what models trained on English capture about English. |
| Approach: | They propose a multilingual model pre-trained from monolingual Wikipedia corpora . they show that multilingual BERT is surprisingly good at zero-shot cross-lingual model transfer . |
| Outcome: | The proposed model can find translation pairs, but it exhibits systematic deficiencies affecting certain language pairs. |
Identifying Elements Essential for BERT’s Multilinguality (2020.emnlp-main)
Copied to clipboard
| Challenge: | Multilingual BERT (mBERT) does not use any crosslingual signal during training. |
| Approach: | They propose a multilingual pretraining setup that modifies the masking strategy using VecMap to allow for fast experimentation. |
| Outcome: | The proposed setup with pretrained models with three languages shows that it works well. |
Transferring BERT Capabilities from High-Resource to Low-Resource Languages Using Vocabulary Matching (2024.lrec-main)
Copied to clipboard
| Challenge: | Pre-trained language models have revolutionized the natural language understanding landscape, but limited data hinders effective training of such models. |
| Approach: | They propose to transfer BERT capabilities from high-resource to low-resourced languages using vocabulary matching. |
| Outcome: | The proposed technique improves performance even when target language has minimal training data. |
Finding Universal Grammatical Relations in Multilingual BERT (2020.acl-main)
Copied to clipboard
| Challenge: | Recent work has found that multilingual masked language models learn a surprising amount of linguistic structure, despite a lack of direct linguistic supervision. |
| Approach: | They propose an unsupervised method to find syntactic tree distances in languages other than English and that these subspaces are approximately shared across languages. |
| Outcome: | The proposed method shows that mBERT learns representations of syntactic dependency labels, in the form of clusters, which largely agree with the Universal Dependencies taxonomy. |
Can Monolingual Pretrained Models Help Cross-Lingual Classification? (2020.aacl-main)
Copied to clipboard
| Challenge: | Multilingual pretrained language models have shown impressive results for cross-lingual transfer, but due to the constant model capacity, multilingual pre-training usually lags behind the monolingual competitors. |
| Approach: | They propose to transfer the knowledge from monolingual pretrained models to multilingual ones to improve zero-shot cross-lingual classification by using machine translation systems. |
| Outcome: | The proposed methods outperform vanilla multilingual fine-tuning on two cross-lingual classification benchmarks. |
Syntax-augmented Multilingual BERT for Cross-lingual Transfer (2021.acl-long)
Copied to clipboard
| Challenge: | Existing studies show that pre-trained multilingual text encoders capture language syntax, helping cross-lingual transfer. |
| Approach: | They provide language syntax and train mBERT to encode universal dependency tree structure. |
| Outcome: | The proposed model improves cross-lingual transfer on PAWS-X and MLQA benchmarks by 1.4 and 1.6 points on average across all languages. |
E-BERT: Efficient-Yet-Effective Entity Embeddings for BERT (2020.findings-emnlp)
Copied to clipboard
| Challenge: | Existing methods to enhance BERT with factual knowledge about entities require no additional pretraining and no changes to the encoder itself. |
| Approach: | They propose a way to inject factual knowledge into the pretrained BERT model by aligning Wikipedia2Vec entity vectors with BERT's native wordpiece vector space and feeding the aligned entity vector into BERT as if they were wordpieces. |
| Outcome: | The proposed version outperforms baseline models on unsupervised question answering, supervised relation classification and entity linking tasks. |
UNKs Everywhere: Adapting Multilingual Language Models to New Scripts (2021.emnlp-main)
Copied to clipboard
| Challenge: | Massively multilingual language models offer state-of-the-art cross-lingual transfer performance on a range of NLP tasks, but there is a profound performance gap between resource-rich and resource-poor target languages. |
| Approach: | They propose a series of data-efficient methods that enable quick and effective adaptation of pretrained multilingual models to low-resource languages and unseen scripts. |
| Outcome: | The proposed methods improve learning of the new dedicated embedding matrix in the target language and for low-resource languages written in unseen scripts. |
Beto, Bentz, Becas: The Surprising Cross-Lingual Effectiveness of BERT (D19-1)
Copied to clipboard
| Challenge: | Pretrained contextual representation models have pushed forward the state-of-the-art on many NLP tasks. |
| Approach: | They propose to use a model that is pretrained on 104 languages for cross-lingual transfer. |
| Outcome: | The proposed model performs well on 5 NLP tasks covering 39 languages from various language families. |
Cross-Linguistic Syntactic Difference in Multilingual BERT: How Good is It and How Does It Affect Transfer? (2022.emnlp-main)
Copied to clipboard
| Challenge: | Multilingual BERT (mBERT) has demonstrated considerable cross-lingual syntactic ability, but it is not well understood what leads to this variation and whether it fairly reflects difference between languages. |
| Approach: | They propose to use multilingual BERT to enable zero-shot cross-lingual transfer of syntactic knowledge between different languages by generating grammatical relations in 24 different languages. |
| Outcome: | The results show that the distance between the distributions of different languages is highly consistent with the syntactic difference in terms of linguistic formalisms. |