Discriminative estimation of probabilistic context-free grammars for mathematical expression recognition and retrieval.
Ernesto NoyaJosé-Miguel BenedíJoan-Andreu SánchezDan AniteiPublished in: Pattern Anal. Appl. (2023)
Keyphrases
- expression recognition
- facial expression recognition
- facial expressions
- probabilistic context free grammars
- information retrieval
- feature extraction
- face detection
- natural language parsing
- face images
- face identification
- image database
- facial features
- finite state
- image retrieval
- semi supervised
- image classification
- facial images
- expert systems
- feature selection