Papers by Ozan Caglayan
Simultaneous Machine Translation with Visual Context (2020.emnlp-main)
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| Challenge: | Simultaneous machine translation (SiMT) aims to reproduce human interpretation, where an interpreter translates spoken utterances as they are produced. |
| Approach: | They propose to add visual context to siMT to compensate for the missing source context . they show visual-grounded models are much better than commonly used global features . |
| Outcome: | The proposed models reach up to 3 BLEU points improvement under low latency scenarios. |
Exploiting Multimodal Reinforcement Learning for Simultaneous Machine Translation (2021.eacl-main)
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| Challenge: | Existing studies on multimodality in simultaneous machine translation have highlighted the challenges for the agent to maintain good translation quality while learning an optimal translation path. |
| Approach: | They propose a multimodal approach to simultaneous machine translation using reinforcement learning with strategies to integrate visual and textual information in both the agent and the environment. |
| Outcome: | The proposed multimodal approach improves translation quality while keeping latency low while providing visual cues. |
Probing the Need for Visual Context in Multimodal Machine Translation (N19-1)
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| Challenge: | Current work on multimodal machine translation (MMT) suggests that the visual modality is either unnecessary or only marginally beneficial. |
| Approach: | They propose to use the visual modality to combine visual and textual information to generate better translations by partially depriving models from source-side textual context. |
| Outcome: | The proposed model can combine visual and textual information to generate better translations under limited textual context. |
BERTGen: Multi-task Generation through BERT (2021.acl-long)
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| Challenge: | Recent work in unsupervised and self-supervised pre-training has revolutionised the field of natural language understanding (NLU). |
| Approach: | They propose to use multimodal and multilingual pre-trained models to extend BERT by fusing them together for language generation tasks. |
| Outcome: | The proposed model outperforms baseline models in image captioning, machine translation and multimodal machine translation tasks and is competitive with supervised counterparts. |
Curious Case of Language Generation Evaluation Metrics: A Cautionary Tale (2020.coling-main)
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| Challenge: | a few popular metrics are still used to evaluate language generation systems despite their known limitations. |
| Approach: | They propose to use automatic metrics to evaluate language generation systems . they show that they prefer system outputs to human-authored texts . |
| Outcome: | The proposed metrics are insensitive to correct translations of rare words and can yield high scores when given a single sentence as system output for the entire test set. |
Cross-lingual Visual Pre-training for Multimodal Machine Translation (2021.eacl-main)
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Ozan Caglayan, Menekse Kuyu, Mustafa Sercan Amac, Pranava Madhyastha, Erkut Erdem, Aykut Erdem, Lucia Specia
| Challenge: | Pre-trained language models have been shown to improve performance in many natural language tasks. |
| Approach: | They propose to combine cross-lingual and visual pre-training to learn visually-grounded cross-linguistic representations using masked region classification and three-way parallel vision & language corpora. |
| Outcome: | The proposed models obtain state-of-the-art performance when fine-tuned for multimodal machine translation. |