Biased beam search for re-translation based simultaneous translation · facebookresearch/fairseq#4286

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enhancementhelp wantedneeds triage

倉庫指標

Star: (29,107 star)
PR 合併指標: (30 天內沒有已合併 PR)

描述

🚀 Feature Request

Biased Beam Search

Motivation

Due to incremental nature of source input in streaming translation, the vanilla beam search based model produces unstable translations causing flickers in the translation. The biased beam search reduces flickers and allows stable translation so that users can follow the translation output.

Pitch

Stable Translation for Re-Translation based Simultaneous, Spoken Language Translation,

Additional context

Implements of biased beam search (Section 4.2) as described in Re-Translation Strategies For Long Form, Simultaneous, Spoken Language Translation, ICASSP 2020

貢獻者指南

研究方向: 檢查 fairseq 中當前的 beam search 實作（可能在 fairseq/search.py 中）。理解用於同步翻譯的重翻譯架構。實作參考文獻（Re Translation Strategies For Long Form, Simultaneous, Spoken Language Translation, ICASSP 2020）第 4.2 節中描述的偏置 beam search。該實作應透過懲罰不穩定的翻譯來減少翻譯閃爍。查閱現有的討論或程式碼註解以獲取指引。
技術棧: python
領域: machine learning
議題類型: 功能
難度: 4
預計時間: 3-5 天
活動狀態: 新近可參與
清晰度: 大致清晰
前置要求: PythonBeam search basics
新手友善度: 30