Approximating Document Frequency for Self-Index based Top-k Document Retrieval.
Tokinori SuzukiAtsushi FujiiPublished in: AINA Workshops (2015)
Keyphrases
- document retrieval
- document frequency
- retrieved documents
- inverted index
- retrieval model
- term frequency
- language model
- n gram
- text categorization
- information retrieval
- document collections
- tf idf
- document representation
- information gain
- relevance feedback
- query processing
- text retrieval
- pseudo relevance feedback
- language modeling
- ranking functions
- learning to rank
- query terms
- feature selection
- relevant documents
- information retrieval systems
- data mining
- vector space model
- retrieval effectiveness
- text documents
- data fusion
- text classification
- feature space
- database systems