Reusing Latent Speech Representations for Query-Conditioned Topic Localization in Transcripts
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Computer Science > Computation and Language
arXiv:2609.21844 (cs)
[Submitted on 18 Sep 2026]
Title:Reusing Latent Speech Representations for Query-Conditioned Topic Localization in Transcripts
Authors:Steffen Freisinger, Philipp Seeberger, Thomas Ranzenberger, Tobias Bocklet, Korbinian Riedhammer
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Abstract:Long transcripts are costly inputs for downstream NLP systems and often contain irrelevant context. We study query-conditioned topic localization: predicting the sentence span in a transcript that best addresses a topic-title query. To improve span localization, we reuse ASR encoder states as sentence-level representations and fuse them with textual embeddings. This lets lightweight span locators exploit speech information without running a separate audio encoder. Experiments on two public datasets show consistent gains over text-only baselines, especially under strict boundary-matching criteria. Cross-dataset experiments further indicate that the benefits are strongest for structured or semi-structured speech, while gains on spontaneous speech are limited and mixed.
| Comments: | Accepted at EMNLP 2026 Main Conference |
| Subjects: | Computation and Language (cs.CL); Audio and Speech Processing (eess.AS) |
| ACM classes: | I.2.7; H.3.3 |
| Cite as: | arXiv:2609.21844 [cs.CL] |
| (or arXiv:2609.21844v1 [cs.CL] for this version) | |
| https://doi.org/10.48550/arXiv.2609.21844
arXiv-issued DOI via DataCite (pending registration)
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Submission history
From: Steffen Freisinger [view email][v1] Fri, 18 Sep 2026 14:41:30 UTC (2,316 KB)
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View a PDF of the paper titled Reusing Latent Speech Representations for Query-Conditioned Topic Localization in Transcripts, by Steffen Freisinger and 4 other authors
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