Revisiting the Relation Between Language Model Perplexity and ASR Word Error Rate for Modern End-to-End Speech Recognition

arXiv:2607.05612 · cs.CL, eess.AS · Submitted 2026-07-06 · Read on arXiv

cs.CL, eess.AS

Submitted: 2026-07-06

Updated: 2026-10-18

Comments: Accepted at IEEE SLT 2026

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Decoder — 2× in this paper · explained in 2 episodes
• Perplexity — 2× in this paper · explained in 3 episodes
• Automatic Speech Recognition (ASR) — 1× in this paper · explained in 2 episodes
• Large Language Models (LLMs) — 1× in this paper · explained in 8 episodes

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