Sparse Information Extraction: Unsupervised Language Models to the Rescue.
Doug DowneyStefan SchoenmackersOren EtzioniPublished in: ACL (2007)
Keyphrases
- language model
- information extraction
- information retrieval
- language modeling
- document retrieval
- n gram
- probabilistic model
- natural language processing
- language modelling
- speech recognition
- machine learning
- query expansion
- precision and recall
- test collection
- text mining
- high dimensional
- language models for information retrieval
- smoothing methods
- semi supervised
- context sensitive
- question answering
- free text
- language model for information retrieval
- retrieval model
- unsupervised learning
- conditional random fields
- pseudo relevance feedback
- web documents
- statistical language models
- vector space model
- machine translation
- named entity recognition
- relevance model
- document ranking
- relevant documents
- search engine
- cross lingual
- named entities
- web mining
- automatic speech recognition
- query specific
- natural language
- text documents
- query terms