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

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enhancementhelp wantedneeds triage

仓库指标

Star: (29,107 star)
PR 合并指标: (30 天内没有已合并 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

贡献者指南

研究方向: 检查 fairseq 中当前的 beam search 实现（可能在 fairseq/search.py 中）。理解用于同声传译的重翻译架构。实现参考文献（Re Translation Strategies For Long Form, Simultaneous, Spoken Language Translation, ICASSP 2020）第 4.2 节中描述的偏置 beam search。该实现应通过惩罚不稳定的翻译来减少翻译闪烁。查阅现有的讨论或代码注释以获取指导。
技术栈: python
领域: machine learning
议题类型: 功能
难度: 4
预计时间: 3-5 天
活动状态: 新近可参与
清晰度: 基本清晰
前置要求: PythonBeam search basics
新手友好度: 30