Keyphrases
- error correction
- phrase structure
- natural language
- error detection
- error correcting
- parse tree
- natural language processing
- data hiding
- context free grammars
- syntactic analysis
- tree structures
- context free
- evolutionary computation
- error analysis
- channel coding
- word order
- error control
- watermarking scheme
- ldpc codes
- barcode
- genetic algorithm
- grammar rules
- semantic analysis
- error detection and correction