CHALLENGES IN BN RECOGNITION
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Variety of sources and background conditions
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Unsegmented, unpartitioned data provided for evaluation
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Additional 50 hours of acoustic training data
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New scoring procedure
- Fragments are optionally deletable
- Unintelligible / foreign words optionally deletable
- Hesitations mapped to single optionally deletable form
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New scoring procedure improves WER by 1% absolute on Hub4 '96