The Public Discourse Corpus (PDC): A Speaker-Attributed Dataset for Valence and Epistemic Modality with Target Speaker Participation
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Computer Science > Computation and Language
arXiv:2609.20232 (cs)
[Submitted on 27 Jul 2026]
Title:The Public Discourse Corpus (PDC): A Speaker-Attributed Dataset for Valence and Epistemic Modality with Target Speaker Participation
Authors:Bo Chen
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Abstract:We introduce the \textbf{Public Discourse Corpus (PDC)}, the first dataset of public-figure interview speech jointly annotated for affective valence and epistemic modality. The corpus contains 998 videos from 100 speakers across seven professional domains, yielding 186,642 sentences (3.1 million words) after sentence segmentation and filtering. To ensure that all retained videos contain analyzable speech from the intended speaker, we introduce \textbf{Target Speaker Participation (TSP)}---a five-category annotation taxonomy with documented inter-annotator reliability ($\kappa = 0.616$)---as a key methodological contribution that any corpus construction project can adopt. Target-speaker turns are separated from interviewer and third-party speech through an \textbf{audio-first diarization pipeline} combining local Whisper ASR with pyannote speaker separation, released as an open-source implementation. We release the annotated corpus, the annotation tools, the cross-provider validation sample, and the complete processing pipeline. The dataset is available at this https URL.
| Comments: | 16 pages, 1 figure |
| Subjects: | Computation and Language (cs.CL) |
| Cite as: | arXiv:2609.20232 [cs.CL] |
| (or arXiv:2609.20232v1 [cs.CL] for this version) | |
| https://doi.org/10.48550/arXiv.2609.20232
arXiv-issued DOI via DataCite (pending registration)
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View a PDF of the paper titled The Public Discourse Corpus (PDC): A Speaker-Attributed Dataset for Valence and Epistemic Modality with Target Speaker Participation, by Bo Chen
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