Recognition: no theorem link
Interactive ASR: Towards Human-Like Interaction and Semantic Coherence Evaluation for Agentic Speech Recognition
Pith reviewed 2026-05-10 18:17 UTC · model grok-4.3
The pith
An agentic ASR framework uses LLM judges for semantic evaluation and multi-turn LLM agents for interactive refinement to improve meaning-level accuracy.
A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.
Core claim
The paper establishes that an LLM prompted as a semantic judge can evaluate recognition quality beyond word matches, and that an LLM agent simulating multi-turn human interaction can iteratively refine ASR outputs through semantic feedback, producing higher semantic fidelity on GigaSpeech, WenetSpeech, and ASRU 2019 code-switching sets as measured by both objective and subjective criteria.
What carries the argument
LLM-as-a-Judge semantic evaluation metric together with an LLM-driven multi-turn agent that issues clarification requests and applies corrections to the ASR transcript.
If this is right
- ASR quality can be assessed at the level of sentence meaning rather than individual word matches.
- Systems can recover from recognition errors through dialogue instead of requiring a complete re-recognition pass.
- The approach scales to multiple languages and code-switching without retraining the base ASR model.
- Both automated semantic metrics and human listeners register measurable gains in fidelity and correction capability.
Where Pith is reading between the lines
- Real voice interfaces could adopt similar agents to request user clarifications in live settings rather than waiting for full utterances.
- Post-processing agent layers might reduce reliance on ever-larger training corpora by correcting errors after initial decoding.
- The same judge-plus-agent pattern could apply to other modalities such as video captioning or live translation where semantic drift also occurs.
Load-bearing premise
An LLM prompted as a judge can reliably judge semantic correctness of ASR outputs without injecting its own biases or hallucinations, and the simulated multi-turn interactions do not degrade final accuracy.
What would settle it
A side-by-side human rating study in which raters consistently assign different semantic-correctness scores to the same ASR outputs than the LLM judge, or a blind test showing that adding interactive turns raises rather than lowers final word or semantic error rates.
Figures
read the original abstract
Recent years have witnessed remarkable progress in automatic speech recognition (ASR), driven by advances in model architectures and large-scale training data. However, two important aspects remain underexplored. First, Word Error Rate (WER), the dominant evaluation metric for decades, treats all words equally and often fails to reflect the semantic correctness of an utterance at the sentence level. Second, interactive correction-an essential component of human communication-has rarely been systematically studied in ASR research. In this paper, we integrate these two perspectives under an agentic framework for interactive ASR. We propose leveraging LLM-as-a-Judge as a semantic-aware evaluation metric to assess recognition quality beyond token-level accuracy. Furthermore, we design an LLM-driven agent framework to simulate human-like multi-turn interaction, enabling iterative refinement of recognition outputs through semantic feedback. Extensive experiments are conducted on standard benchmarks, including GigaSpeech (English), WenetSpeech (Chinese), the ASRU 2019 code-switching test set. Both objective and subjective evaluations demonstrate the effectiveness of the proposed framework in improving semantic fidelity and interactive correction capability. We will release the code to facilitate future research in interactive and agentic ASR.
Editorial analysis
A structured set of objections, weighed in public.
Referee Report
Summary. The paper proposes an agentic framework for interactive ASR. It uses an LLM-as-a-Judge to provide semantic-aware evaluation of ASR outputs beyond token-level WER and designs an LLM-driven multi-turn agent to simulate human-like interactive corrections via semantic feedback. Experiments are conducted on GigaSpeech (English), WenetSpeech (Chinese), and the ASRU 2019 code-switching set, with claims that both objective and subjective evaluations show improved semantic fidelity and correction capability. Code release is promised.
Significance. If the LLM judge proves reliable and the agent yields genuine gains without accuracy degradation, the work could meaningfully advance ASR beyond WER-centric evaluation and static decoding toward more interactive, semantically grounded systems. The idea of agentic interaction is timely. However, the absence of any reported validation, baselines, or quantitative evidence in the provided description substantially weakens the potential impact at present.
major comments (3)
- The abstract asserts effectiveness based on experiments on GigaSpeech, WenetSpeech, and ASRU 2019 but supplies no prompting details, baselines, quantitative deltas, statistical significance, or controls for LLM variability, leaving the central claim of improved semantic fidelity and interactive correction unsupported by visible evidence.
- No validation of the LLM-as-Judge metric against human semantic judgments (e.g., correlation coefficients, inter-annotator agreement, or ablation on prompt sensitivity) is described. This is load-bearing because the entire evaluation framework and the agent's feedback loop depend on the judge being free of systematic bias or hallucination when scoring meaning preservation.
- The multi-turn agent framework is presented without analysis of error propagation across turns, comparison to non-agentic correction baselines, or measurement of whether iterative refinement preserves or degrades overall WER. These omissions directly affect the claim that the approach enables human-like interaction without accuracy loss.
minor comments (2)
- Clarify the exact definition of 'semantic coherence' used by the LLM judge and how it differs from existing semantic similarity metrics in the ASR literature.
- The abstract mentions 'standard benchmarks' but does not list exact test-set sizes or splits; include these in the experimental section for reproducibility.
Simulated Author's Rebuttal
We thank the referee for the constructive feedback, which identifies key areas where additional empirical detail and validation will strengthen the paper. We have revised the manuscript to address each major comment directly by expanding the experimental reporting, adding validation studies, and including targeted analyses of the agent framework.
read point-by-point responses
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Referee: The abstract asserts effectiveness based on experiments on GigaSpeech, WenetSpeech, and ASRU 2019 but supplies no prompting details, baselines, quantitative deltas, statistical significance, or controls for LLM variability, leaving the central claim of improved semantic fidelity and interactive correction unsupported by visible evidence.
Authors: We agree the abstract is necessarily concise and omits these specifics. The full manuscript already contains the experimental details in Sections 3 and 4, including the LLM prompts, baseline systems (standard ASR and non-interactive correction), quantitative deltas on both WER and semantic metrics, and significance testing. To improve visibility, we have revised the abstract to reference the key gains and added an explicit summary paragraph plus controls for LLM variability (results averaged over multiple runs with varied seeds) in the experimental section. revision: yes
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Referee: No validation of the LLM-as-Judge metric against human semantic judgments (e.g., correlation coefficients, inter-annotator agreement, or ablation on prompt sensitivity) is described. This is load-bearing because the entire evaluation framework and the agent's feedback loop depend on the judge being free of systematic bias or hallucination when scoring meaning preservation.
Authors: This is a fair and important observation. We have added a dedicated validation subsection that reports Pearson and Spearman correlations with human semantic judgments, inter-annotator agreement statistics, and an ablation on prompt variations to demonstrate robustness. The revised manuscript now explicitly addresses potential biases and how they were mitigated. revision: yes
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Referee: The multi-turn agent framework is presented without analysis of error propagation across turns, comparison to non-agentic correction baselines, or measurement of whether iterative refinement preserves or degrades overall WER. These omissions directly affect the claim that the approach enables human-like interaction without accuracy loss.
Authors: We accept that these analyses are necessary to support the interaction claims. The revision includes new experiments that track WER and semantic scores across turns to quantify error propagation, direct comparisons to non-agentic single-turn baselines, and explicit measurements confirming that iterative refinement preserves (and in some cases slightly improves) WER while raising semantic fidelity. These results appear in updated tables and figures. revision: yes
Circularity Check
No circularity: framework and evaluations are externally grounded
full rationale
The paper introduces an LLM-as-Judge metric and multi-turn agent framework for interactive ASR, with effectiveness claims resting on described experiments across GigaSpeech, WenetSpeech, and code-switching benchmarks rather than any internal derivation. No equations, fitted parameters renamed as predictions, or self-citation chains appear in the provided text that would reduce the central claims to tautological inputs by construction. The methodology applies external LLMs for judgment and correction without redefining success metrics in terms of themselves, making the work self-contained against the reported objective and subjective results.
Axiom & Free-Parameter Ledger
axioms (2)
- domain assumption LLMs can serve as reliable judges of semantic correctness in ASR transcripts
- domain assumption LLM agents can simulate effective human-like multi-turn correction without introducing new errors
invented entities (2)
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LLM-as-a-Judge
no independent evidence
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LLM-driven agent framework
no independent evidence
Reference graph
Works this paper leans on
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Introduction Automatic speech recognition (ASR) plays a pivotal role in human–computer interaction by enabling computers to under- stand users’ intent through speech. In recent years, ASR tech- nologies have achieved remarkable progress, driven by advances in both model architectures and large-scale training data. Ex- tensive research has explored a varie...
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To address this, several semantic-aware metrics have been proposed
Related Works While WER has long served as the standard metric for ASR eval- uation, its inherent design of assigning equal weight to all words fails to capture critical semantic errors. To address this, several semantic-aware metrics have been proposed. Semantic WER
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Moving to embedding-based evaluation, SemDist [18] utilized RoBERTa-based sentence embeddings to measure se- mantic similarity beyond literal overlap
introduced dynamic weighting, which utilizes Named En- tity Recognition to extract keywords, assigning higher weights to critical entities and lower weights to filler words during error cal- culation. Moving to embedding-based evaluation, SemDist [18] utilized RoBERTa-based sentence embeddings to measure se- mantic similarity beyond literal overlap. Most ...
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Unlike these continuous scoring metrics, our LLM-as-a-Judge adopts a binary functional criterion, acting as a strict gatekeeper to determine if the user’s intent is executable
leveraged LLMs to assign graded penalties based on er- ror severity (e.g., ignoring colloquial variations while penalizing meaning changes). Unlike these continuous scoring metrics, our LLM-as-a-Judge adopts a binary functional criterion, acting as a strict gatekeeper to determine if the user’s intent is executable. Regarding error correction based on hum...
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Proposed Paradigm Let 𝐼 denote the user speech and𝑌 the output transcript. Existing ASR systems operate under a single-pass decoding paradigm: 𝑌 = ASR(𝐼) (1) This formulation is static: once a transcription is produced, the system has no mechanism to incorporate subsequent user feed- back. To address this limitation, we propose the Interactive ASR framewo...
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Automated Simulation Framework Large-scale human evaluation of interactive ASR in continuous scenarios is expensive and limits reproducibility. To address this and systematically evaluate the corrective capability of our sys- tem (the right branch in Figure 2), we design an automated sim- ulation framework tailored for single-utterance iterative correc- t...
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We first outline the experimental setup in Section 5.1, detailing the diverse benchmarks and the foun- dational models
Experiments In this section, we comprehensively evaluate the proposed Inter- active ASR framework. We first outline the experimental setup in Section 5.1, detailing the diverse benchmarks and the foun- dational models. Before analyzing the system performance, we conduct a Human-AI Alignment Study in Section 5.2 to es- tablish the credibility of 𝑆2𝐸 𝑅 by d...
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We introduced 𝑆2𝐸 𝑅, a novel met- ric that leverages LLMs as judges to prioritize sentence-level semantic coherence
Conclusion In this work, we addressed two critical limitations in traditional ASR: semantic-blind evaluation and the absence of interactive correction mechanisms. We introduced 𝑆2𝐸 𝑅, a novel met- ric that leverages LLMs as judges to prioritize sentence-level semantic coherence. Furthermore, we proposed an Interactive ASR framework that employs CoT reason...
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