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Document Expansion for Speech Retrieval (Singhal, Pereira)

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Presentation on theme: "Document Expansion for Speech Retrieval (Singhal, Pereira)"— Presentation transcript:

1 Document Expansion for Speech Retrieval (Singhal, Pereira)
Teoman Toraman Çağrı Toraman Bilkent University, 2010

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

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

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

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

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

7 Solution Corrupted / Erroneous Expanded Document Expansion 7 / 10

8 What is Document Expansion ?
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 %10-15 loss %20-25 loss 10 / 10


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