Question Answering Passage Retrieval and Re-ranking Using N-grams and SVM.
Nouha OthmanRim FaizPublished in: Computación y Sistemas (2016)
Keyphrases
- n gram
- passage retrieval
- question answering
- language model
- relevance model
- document retrieval
- language modeling
- information retrieval
- relevance ranking
- bag of words
- query expansion
- sentence retrieval
- learning to rank
- text classification
- retrieval model
- information extraction
- knn
- part of speech
- feature selection
- natural language processing
- ranking algorithm
- probabilistic model
- question answering systems
- web search
- machine learning
- natural language
- cross language
- pseudo relevance feedback
- feature space
- web documents
- test collection
- retrieved documents
- active learning