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I currently work as an Algorithm Engineer at Xiaohongshu Inc. I earned my Bachelor's degree from Northeastern University (2017-2021) and my Master's degree from Tianjin University (2021-2023) in TJUNLP, under the supervision of Prof. Deiyi Xiong.

My research interests are focused on:

• 🌟 Machine Translation, including Document-level Translation, Speech Translation, and Image Translation.
• 🌟 Large Language Model, with a particular emphasis on Reasoning, Retrieval-Augmented Generation, and LLM-based Agent.

• 🧑‍💻 2023.11 ~ Now : Algorithm Engineer, NLP Team, Sheqv Tech, Xiaohongshu Inc. Focus on developing Complex QA system and LLM-based Agent.
• 🧑‍💻 2022.09~2023.08: Intern, Machine Translation Team, OPPO Research Institute. Engaged in research on End-to-End Speech Translation and LLM-enhanced Machine Translation.
• 🧑‍🎓 2021.09~2022.09: Student, TJUNLP Group, Tianjin University. Conducted research in Document-level Machine Translation.

• 📄 Hao Wang, Zhengshan Xue, Yikun Lei, Deyi Xiong. End-to-End Speech Translation with Mutual Knowledge Distillation. ICASSP (2024).
• 📄 Xiaohu Zhao, Haoran Sun, Yikun Lei, Deyi Xiong. Regularizing Cross-Attention Learning for End-to-End Speech Translation with ASR and MT Attention Matrices. Expert Systems with Applications.

• 📄 Yikun Lei, Zhengshan Xue, Xiaohu Zhao, Haoran Sun, Shaolin Zhu, Xiaodong Lin, Deyi Xiong. CKDST: Comprehensively and Effectively Distill Knowledge from Machine Translation to End-to-End Speech Translation. ACL Findings(2023).
• 📄 Shaolin Zhu, Shangjie Li, Yikun Lei, Deyi Xiong. PEIT: Bridging the Modality Gap with Pre-trained Models for End-to-End Image Translation. ACL(2023).
• 📄 Haoran Sun, Xiaohu Zhao, Yikun Lei, Shaolin Zhu, Deyi Xiong. Towards a Deep Understanding of Multilingual End-to-End Speech Translation. EMNLP Findings(2023).
• 📄 Xiaohu Zhao, Haoran Sun, Yikun Lei, Shaolin Zhu, Deyi Xiong. CCSRD: Content-Centric Speech Representation Disentanglement Learning for End-to-End Speech Translation. EMNLP Findings(2023).

• 📄 Yikun Lei, Yuqi Ren, Deyi Xiong. CoDoNMT: Modeling Cohesion Devices for Document-Level Neural Machine Translation. COLING(2022).
• 📄 Haoran Sun, Yikun Lei, Deyi Xiong. Multilingual Neural Machine Transliteration with Adaptive Segmentation Schemes. IALP(2022).