Let's Fuse Step by Step: A Generative Fusion Decoding Algorithm with LLMs for Robust and Instruction-Aware ASR and OCR
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Abstract (arXiv)
We propose "Generative Fusion Decoding" (GFD), a novel shallow fusion framework designed to integrate large language models (LLMs) into cross-modal text recognition systems for automatic speech recognition (ASR) and optical character recognition (OCR). We derive the necessary formulations to enable GFD to operate across mismatched token spaces of different models by calculating likelihood at the byte level, thereby enabling seamless fusion and synchronous progression during the decoding process. GFD is plug-and-play by design, making it readily compatible with various auto-regressive models without the need for any re-training. GFD proves effective for general ASR and OCR tasks through intermediate and frequent interactions with LLMs, surpassing cascaded methods in English and Mandarin benchmarks. In addition, GFD transfers in-context learning abilities of LLMs and allows for adaptive ASR in instruction-aware and long-context settings, yielding significant WER reductions of up to 17.7%.
Key facts. Cited by 4 papers in the map (data through 7 Oct 2026). Builds on 34 of its 47 references that are in the map. First posted on arXiv 23 May 2024.
Builds on
34 of 47 references.
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22 more
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Built on by
Citing papers per year: 2026: 4.
4 papers.
- 2026Measuring the Redundancy of Decoder Layers in SpeechLLMscited by 0
- 2026Voice Memory for Agentic Speech Recognitioncited by 0
- 2026Anchoring Speech with Semantics: A Multimodal Adapter Mechanism for Automatic Speech Recognition in Low-Resource Languagescited by 0
- 2026Listen to the Latents: Self-Correcting Speech Recognition in Large Audio Language Models Through Hidden-State Interactionscited by 0
- 2026Listen to the Latents: Self-Correcting Speech Recognition in Large Audio Language Models Through Hidden-State Interactions31 Aug 2026
- 2026Anchoring Speech with Semantics: A Multimodal Adapter Mechanism for Automatic Speech Recognition in Low-Resource Languages29 Aug 2026
- 2026Voice Memory for Agentic Speech Recognition29 Jul 2026
- 2026Measuring the Redundancy of Decoder Layers in SpeechLLMs5 Mar 2026