A System for Knowledge-Based Information Extraction.
Frank von MartialFrank VictorHiroshi IshiiPublished in: DEXA (1990)
Keyphrases
- information extraction
- natural language processing
- free text
- precision and recall
- text mining
- named entity recognition
- named entities
- text documents
- ontology based information extraction
- machine learning
- expert systems
- structured data
- relational learning
- web documents
- question answering
- information retrieval
- semi structured
- conditional random fields
- open domain
- unstructured text
- relation extraction
- natural language
- semantic tagging
- data extraction
- natural language text
- text processing
- text summarization
- web mining
- learning algorithm
- artificial intelligence
- computer vision
- information extraction systems
- decision making