A characterization of boolean closures of families of languages.
Detlef WotschkePublished in: Automatentheorie und Formale Sprachen (1973)
Keyphrases
- language independent
- boolean functions
- real valued
- databases
- closed sets
- expressive power
- native language
- boolean queries
- grammatical inference
- cross lingual
- n gram
- information extraction
- relational databases
- text summarization
- case study
- website
- learning algorithm
- multi lingual
- description languages
- information retrieval