Answering Definition Questions: Dealing with Data Sparseness in Lexicalised Dependency Trees-Based Language Models.
Alejandro FigueroaJohn AtkinsonPublished in: WEBIST (Selected Papers) (2009)
Keyphrases
- data sparseness
- language modeling
- language model
- retrieval model
- n gram
- document retrieval
- probabilistic model
- cross lingual
- test collection
- information retrieval
- query expansion
- relevance model
- vector space model
- query terms
- machine learning
- search engine
- active learning
- domain knowledge
- image retrieval
- high dimensional
- retrieval effectiveness