Approaches for 2000
Automatic Speech Recognition
- HMM, word-based - most
- NN/HMM hybrid-based, Sheffield
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Retrieval
- OKAPI Probabilistic Model - all
- Blind Relevance Feedback and parallel corpus BRF for query expansion - all
Story boundary unknown retrieval
- passage windowing, retrieval and merging - all
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Use of automatically-recognized non-lexical features
- repeat and commercial detection - CU