Viewing Knowledge Transfer in Multilingual Machine Translation Through a Representational Lens
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Abstract (arXiv)
We argue that translation quality alone is not a sufficient metric for measuring knowledge transfer in multilingual neural machine translation. To support this claim, we introduce Representational Transfer Potential (RTP), which measures representational similarities between languages. We show that RTP can measure both positive and negative transfer (interference), and find that RTP is strongly correlated with changes in translation quality, indicating that transfer does occur. Furthermore, we investigate data and language characteristics that are relevant for transfer, and find that multi-parallel overlap is an important yet under-explored feature. Based on this, we develop a novel training scheme, which uses an auxiliary similarity loss that encourages representations to be more invariant across languages by taking advantage of multi-parallel data. We show that our method yields increased translation quality for low- and mid-resource languages across multiple data and model setups.
Key facts. Cited by 15 papers in the map (data through 7 Oct 2026). Builds on 34 of its 46 references that are in the map. First posted on arXiv 19 May 2023.
Builds on
34 of 46 references.
References · 34
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22 more
- 2019Massively Multilingual Neural Machine Translationcited by 246
- 2016Transfer Learning for Low-Resource Neural Machine Translationcited by 188
- 2019Cross-Lingual Ability of Multilingual BERT: An Empirical Studycited by 182
- 2019Emerging Cross-lingual Structure in Pretrained Language Modelscited by 180
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Citing papers per year: 2023: 3; 2024: 6; 2025: 2; 2026: 4.
15 papers.
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- 2023Towards a Better Understanding of Variations in Zero-Shot Neural Machine Translation Performancecited by 10
- 2024Mitigating the Linguistic Gap with Phonemic Representations for Robust Cross-lingual Transfercited by 6
- 2023Multilingual k-Nearest-Neighbor Machine Translationcited by 3
- 2024A Systematic Analysis of Subwords and Cross-Lingual Transfer in Multilingual Translationcited by 3
- 2024Languages Transferred Within the Encoder: On Representation Transfer in Zero-Shot Multilingual Translationcited by 3
- 2024Disentangling the Roles of Target-Side Transfer and Regularization in Multilingual Machine Translationcited by 2
- 2024Investigating the translation capabilities of Large Language Models trained on parallel data onlycited by 2
- 2023UvA-MT's Participation in the WMT23 General Translation Shared Taskcited by 1
- 2025The Effect of Language Diversity When Fine-Tuning Large Language Models for Translationcited by 1
- 2024Improving Language Transfer Capability of Decoder-only Architecture in Multilingual Neural Machine Translationcited by 0
- 2025Registering Source Tokens to Target Language Spaces in Multilingual Neural Machine Translationcited by 0
- 2026Analyzing and Improving Cross-lingual Knowledge Transfer for Machine Translationcited by 0
3 more
- 2026One Form to Transfer Them All: Pretraining Multilingual Language Models Beyond Native Orthography26 Aug 2026
- 2026Cross-Lingual Transfer for Machine Translation in Turkic Languages31 Jul 2026
- 2026The Impact of Vocabulary Overlaps on Knowledge Transfer in Multilingual Machine Translation5 May 2026
- 2026Analyzing and Improving Cross-lingual Knowledge Transfer for Machine Translation7 Jan 2026
- 2025The Effect of Language Diversity When Fine-Tuning Large Language Models for Translation19 May 2025
- 2025Registering Source Tokens to Target Language Spaces in Multilingual Neural Machine Translation6 Jan 2025
- 2024Improving Language Transfer Capability of Decoder-only Architecture in Multilingual Neural Machine Translation3 Dec 2024
- 2024Investigating the translation capabilities of Large Language Models trained on parallel data only13 Jun 2024
- 2024Languages Transferred Within the Encoder: On Representation Transfer in Zero-Shot Multilingual Translation12 Jun 2024
- 2024A Systematic Analysis of Subwords and Cross-Lingual Transfer in Multilingual Translation29 Mar 2024
- 2024Mitigating the Linguistic Gap with Phonemic Representations for Robust Cross-lingual Transfer22 Feb 2024
- 2024Disentangling the Roles of Target-Side Transfer and Regularization in Multilingual Machine Translation1 Feb 2024
- 2023Towards a Better Understanding of Variations in Zero-Shot Neural Machine Translation Performancecited by 10
- 2024Mitigating the Linguistic Gap with Phonemic Representations for Robust Cross-lingual Transfercited by 6
- 2023Multilingual k-Nearest-Neighbor Machine Translationcited by 3
- 2024A Systematic Analysis of Subwords and Cross-Lingual Transfer in Multilingual Translationcited by 3
- 2024Languages Transferred Within the Encoder: On Representation Transfer in Zero-Shot Multilingual Translationcited by 3
- 2024Disentangling the Roles of Target-Side Transfer and Regularization in Multilingual Machine Translationcited by 2
- 2024Investigating the translation capabilities of Large Language Models trained on parallel data onlycited by 2
- 2023UvA-MT's Participation in the WMT23 General Translation Shared Taskcited by 1
- 2025The Effect of Language Diversity When Fine-Tuning Large Language Models for Translationcited by 1
- 2024Improving Language Transfer Capability of Decoder-only Architecture in Multilingual Neural Machine Translationcited by 0
- 2025Registering Source Tokens to Target Language Spaces in Multilingual Neural Machine Translationcited by 0
- 2026Analyzing and Improving Cross-lingual Knowledge Transfer for Machine Translationcited by 0
12 most cited of 15 All 15 (JSON)
- 2026One Form to Transfer Them All: Pretraining Multilingual Language Models Beyond Native Orthography26 Aug 2026
- 2026Cross-Lingual Transfer for Machine Translation in Turkic Languages31 Jul 2026
- 2026The Impact of Vocabulary Overlaps on Knowledge Transfer in Multilingual Machine Translation5 May 2026
- 2026Analyzing and Improving Cross-lingual Knowledge Transfer for Machine Translation7 Jan 2026
- 2025The Effect of Language Diversity When Fine-Tuning Large Language Models for Translation19 May 2025
- 2025Registering Source Tokens to Target Language Spaces in Multilingual Neural Machine Translation6 Jan 2025
- 2024Improving Language Transfer Capability of Decoder-only Architecture in Multilingual Neural Machine Translation3 Dec 2024
- 2024Investigating the translation capabilities of Large Language Models trained on parallel data only13 Jun 2024
- 2024Languages Transferred Within the Encoder: On Representation Transfer in Zero-Shot Multilingual Translation12 Jun 2024
- 2024A Systematic Analysis of Subwords and Cross-Lingual Transfer in Multilingual Translation29 Mar 2024
- 2024Mitigating the Linguistic Gap with Phonemic Representations for Robust Cross-lingual Transfer22 Feb 2024
- 2024Disentangling the Roles of Target-Side Transfer and Regularization in Multilingual Machine Translation1 Feb 2024
12 newest of 15 All 15 (JSON)