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Document Expansion for Speech Retrieval ( Singhal, Pereira)

Document Expansion for Speech Retrieval ( Singhal, Pereira). Teoman Toraman Çağrı Toraman Bilkent University, 2010. Problem Statement. Reasonable Transcription File: news_today.rtf. Speech File: news_today.wav. Automatic (or Manual) Speech Recognition. 2 / 10. Problem Statement.

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Document Expansion for Speech Retrieval ( Singhal, Pereira)

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  1. Document Expansion forSpeech Retrieval(Singhal, Pereira) Teoman ToramanÇağrı ToramanBilkent University, 2010

  2. Problem Statement Reasonable Transcription File: news_today.rtf Speech File: news_today.wav Automatic (or Manual) Speech Recognition 2 / 10

  3. Problem Statement Aboutness: Fatal train crash in Italy Query Indexing Results:D1, D2 3 / 10

  4. Problem Statement Erroneous Transcription File Noisy / Dirty Sound File Corrupted / Erroneous Automatic (or Manual) Speech Recognition 4 / 10

  5. Problem Statement Same Query Erroneous Corrupted / Erroneous Indexing Results:D2 (Vocabulary Mismatch) 5 / 10

  6. Problem Statement Noisy / Dirty Sound File Automatic (or Manual) Speech Recognition Corrupted / Erroneous • Recognition Mistakes: • Deletions • Wrong term weighting • Insertions 6 / 10

  7. Solution Expanded Corrupted / Erroneous Document Expansion 7 / 10

  8. Solution What is Document Expansion ? Step 2) Step 3) Step 1) RELATED CORPUS Corrupted / Erroneous Reweighing & Adding New Terms ... 10 similar files 8 / 10

  9. Experiments & Results 9 / 10

  10. Experiments & Results %10-15loss %20-25loss 10 / 10

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