Spatio-temporal Pseudo Relevance Feedback for Large-Scale and Heterogeneous Scientific Repositories.
Shin'ichi TakeuchiYuhei AkahoshiBun Theang OngKomei SugiuraKoji ZettsuPublished in: BigData Congress (2014)
Keyphrases
- pseudo relevance feedback
- spatio temporal
- query expansion
- retrieval effectiveness
- document retrieval
- ad hoc retrieval
- relevance feedback
- language model
- relevant documents
- retrieval accuracy
- automatic query expansion
- metadata
- query specific
- retrieved documents
- digital libraries
- information retrieval systems
- relevance model
- average precision
- information retrieval
- pseudo feedback
- scientific data
- query terms
- test collection
- probabilistic model
- data mining
- language modeling
- text retrieval
- document collections
- wordnet
- ad hoc information retrieval