An Algebraic Approach to Rule-Based Information Extraction.
Frederick ReissSriram RaghavanRajasekar KrishnamurthyHuaiyu ZhuShivakumar VaithyanathanPublished in: ICDE (2008)
Keyphrases
- information extraction
- precision and recall
- expert systems
- free text
- text mining
- natural language processing
- question answering
- information retrieval
- data driven
- semi structured
- machine learning
- named entity recognition
- natural language
- web mining
- relation extraction
- conditional random fields
- named entities
- machine translation
- semantic tagging
- web documents
- text processing
- rule based systems
- text summarization
- structured data
- textual data
- knowledge base
- social networks
- decision trees
- genetic algorithm
- relational databases
- data extraction
- open domain
- algebraic operations
- extraction rules
- text documents