Improved Semantic Retrieval of Spoken Content by Document/Query Expansion with Random Walk Over Acoustic Similarity Graphs.
Hung-yi LeeLin-Shan LeePublished in: IEEE ACM Trans. Audio Speech Lang. Process. (2014)
Keyphrases
- random walk
- query expansion
- semantic retrieval
- information retrieval systems
- relevant documents
- information retrieval
- query terms
- retrieved documents
- retrieval effectiveness
- language model
- initial query
- pseudo relevance feedback
- relevance feedback
- web graph
- similarity measure
- text summarization
- relevance model
- document collections
- retrieval model
- retrieval systems
- image annotation
- markov chain
- document retrieval
- link prediction
- keywords
- document clustering
- image retrieval
- biomedical information retrieval
- information extraction
- information access
- feature extraction
- reinforcement learning
- distance measure
- machine learning