pengyizhou/IALP-2026-data

IALP-2026: Whisper Open-Set Data-Selection — Query / Dev / Test Sets

Supporting data for the study "Whisper-Based Open-Set Data Selection for NSC Adaptation." This repository holds the fixed target-query, validation, and evaluation sets used across all experiments. Each part is a self-contained .tar.gz.

All audio is 16 kHz mono. Each split ships with:

• audio/ — audio files (FLAC, except GigaSpeech which is WAV PCM_16)
• wav.scp — <utt_id> audio/<file> (Kaldi-style, relative paths)
• text — <utt_id> <transcript>
• utt2spk — <utt_id> <speaker_id>
• manifest.jsonl — one JSON per utterance: {id, speaker, duration, text, audio}

Parts

Archive	Split	Source	#utts	Hours	Role
nsc-query.tar.gz	nsc_query_5h	NSC IMDA Part 6 (train)	~2000	~5.0	Target-domain query set for data selection / EXP0
nsc-dev.tar.gz	nsc_dev_3h	NSC IMDA Part 6 (train)	~1200	~3.0	Validation / checkpoint selection
nsc-test.tar.gz	nsc_test	NSC IMDA Part 6 (test)	3684	~7	In-domain final evaluation
gigaspeech-test.tar.gz	gigaspeech_test	GigaSpeech test	19930	35.4	OOD evaluation (normalized refs)
librispeech-test.tar.gz	librispeech_test_clean + librispeech_test_other	LibriSpeech	2620 + 2939	5.4 + 5.3	OOD evaluation

Split construction (NSC)

• Speaker is the 4th hyphen field of the utterance id (imda-2021-part6-00006-channel001m-...).
• nsc_query_5h, nsc_dev_3h, and nsc_test are mutually speaker-disjoint. Query/dev speakers are sampled (seed=42) from shards spread across the corpus and exclude every speaker appearing in the official test partition.
• Query ≈ 111 speakers; dev ≈ 64 speakers.

Notes

• GigaSpeech text is the standard normalized reference (punctuation tags removed, garbage-tagged segments filtered); it is the icefall/Kaldi test set.
• Licensing follows the upstream corpora: NSC/IMDA (IMDA terms), GigaSpeech (speechcolab/gigaspeech agreement), LibriSpeech (CC BY 4.0). Use is restricted to the respective original licenses.

Usage

tar xzf nsc-query.tar.gz   # -> nsc_query_5h/{audio,wav.scp,text,utt2spk,manifest.jsonl}