{"slug": "mllp-vrain-upv-system-for-the-iwslt-2026-simultaneous-speech-translation-task", "title": "MLLP-VRAIN UPV system for the IWSLT 2026 Simultaneous Speech Translation task", "summary": "The MLLP-VRAIN research group submitted a cascaded system for the IWSLT 2026 Simultaneous Speech Translation task, using Parakeet and Qwen 3.5 models with adaptive policies. Their system achieved a +5.82 XCOMET-XL quality improvement on the MCIF En→De test set compared to last year, and a context track further boosted performance by +1.03.", "body_md": "arXiv:2606.17255v1 Announce Type: new\nAbstract: This work describes the participation of the MLLP-VRAIN research group in the shared task of the IWSLT 2026 Simultaneous Speech Translation track. Our submission utilizes the recently released Parakeet and Qwen 3.5 models to create a robust, cascaded solution for long-form SimulST through the use of adaptive \"black-box\" policies. We explore relaxations of these policies to achieve better quality-latency trade-offs. Compared to last year, we participate on all language directions. In addition to this, for the En$\\rightarrow${De, It, Zh} directions we also participate in this year's new context track employing a combination of ASR word-boosting and a RAG mechanism of offline pre-translated exemplars to guide generation and enrich our system with domain-specific context. Finally, we provide a detailed latency analysis of our system. Compared to last year, results on the MCIF En$\\rightarrow$De test set shows a substantial quality improvement of +5.82 XCOMET-XL. Our context track processing further improves performance by +1.03.", "url": "https://wpnews.pro/news/mllp-vrain-upv-system-for-the-iwslt-2026-simultaneous-speech-translation-task", "canonical_source": "https://arxiv.org/abs/2606.17255", "published_at": "2026-06-17 04:00:00+00:00", "updated_at": "2026-06-17 04:27:14.736279+00:00", "lang": "en", "topics": ["natural-language-processing", "large-language-models", "ai-research"], "entities": ["MLLP-VRAIN", "IWSLT", "Parakeet", "Qwen 3.5", "MCIF"], "alternates": {"html": "https://wpnews.pro/news/mllp-vrain-upv-system-for-the-iwslt-2026-simultaneous-speech-translation-task", "markdown": "https://wpnews.pro/news/mllp-vrain-upv-system-for-the-iwslt-2026-simultaneous-speech-translation-task.md", "text": "https://wpnews.pro/news/mllp-vrain-upv-system-for-the-iwslt-2026-simultaneous-speech-translation-task.txt", "jsonld": "https://wpnews.pro/news/mllp-vrain-upv-system-for-the-iwslt-2026-simultaneous-speech-translation-task.jsonld"}}