Query Expansion for Sentence Retrieval Using Pseudo Relevance Feedback and Word Embedding.
Piyush AroraJennifer FosterGareth J. F. JonesPublished in: CLEF (2017)
Keyphrases
- sentence retrieval
- query expansion
- pseudo relevance feedback
- retrieval model
- short queries
- language modeling
- retrieval effectiveness
- language model
- information retrieval systems
- information retrieval
- retrieved documents
- passage retrieval
- term frequency
- automatic query expansion
- vocabulary mismatch
- relevant documents
- text retrieval
- n gram
- expansion terms
- relevance feedback
- co occurrence
- original query
- query terms
- interactive query expansion
- vector space
- relevance model
- query specific
- pseudo feedback
- document retrieval
- word sense disambiguation
- spoken document retrieval
- average precision
- out of vocabulary
- active learning
- structured queries
- feature space
- machine learning
- learning process
- tf idf