10th Annual Conference of the International Speech Communication Association

Brighton, United Kingdom
September 6-10, 2009

How to Select a Good Training-Data Subset for Transcription: Submodular Active Selection for Sequences

Hui Lin, Jeff Bilmes

University of Washington, USA

Given a large un-transcribed corpus of speech utterances, we address the problem of how to select a good subset for word-level transcription under a given fixed transcription budget. We employ submodular active selection on a Fisher-kernel based graph over un-transcribed utterances. The selection is theoretically guaranteed to be near-optimal. Moreover, our approach is able to bootstrap without requiring any initial transcribed data, whereas traditional approaches rely heavily on the quality of an initial model trained on some labeled data. Our experiments on phone recognition show that our approach outperforms both average-case random selection and uncertainty sampling significantly.

Full Paper

Bibliographic reference.  Lin, Hui / Bilmes, Jeff (2009): "How to select a good training-data subset for transcription: submodular active selection for sequences", In INTERSPEECH-2009, 2859-2862.