Term Selection and Result Reranking for Question Retrieval by Exploiting Hierarchical Classification.
Wen ChanJintao DuWeidong YangJinhui TangXiangdong ZhouPublished in: CIKM (2014)
Keyphrases
- hierarchical classification
- term selection
- query expansion
- ad hoc retrieval
- hierarchical structure
- text classification
- information retrieval
- document retrieval
- test collection
- relevance feedback
- classification algorithm
- relevant documents
- knn
- image retrieval
- language model
- information retrieval systems
- k nearest neighbor
- machine learning
- visual features
- retrieval model
- relevance model
- pairwise