An STD system for OOV query terms using various subword units.
Hiroyuki SaitoTakuya NakanoShiro NarumiToshiaki ChibaKazuma KonnoYoshiaki ItohPublished in: NTCIR (2011)
Keyphrases
- out of vocabulary
- query terms
- language model
- co occurrence
- spoken document retrieval
- retrieval effectiveness
- query expansion
- cross language information retrieval
- user queries
- information retrieval
- document retrieval
- document collections
- retrieval model
- information retrieval systems
- relevant documents
- broadcast news
- word segmentation
- search queries
- n gram
- pseudo relevance feedback
- spoken term detection
- language modeling
- term frequency
- search terms
- parallel corpora
- digital libraries
- similarity search
- information extraction
- search engine
- learning algorithm