Unsupervised Discovery of Scenario-Level Patterns for Information Extraction.
Roman YangarberRalph GrishmanPasi TapanainenPublished in: ANLP (2000)
Keyphrases
- information extraction
- natural language processing
- text mining
- precision and recall
- question answering
- database
- machine learning
- information retrieval
- abstraction levels
- knowledge discovery
- web mining
- extracting meaningful
- pattern discovery
- conditional random fields
- frequent patterns
- higher level
- web pages
- search engine
- data sets