Ontologies and Bigram-based approach for Isolated Non-word Errors Correction in OCR System
Aicha Eutamene, Mohamed Khireddine Kholladi, Hacene Belhadef
Résumé
In this paper, we describe a new and original approach for post-processing step in an OCR system. This approach is based on new method of spelling correction to correct automatically misspelled words resulting from a character recognition step of scanned documents by combining both ontologies and bigram code in order to create a robust system able to solve automatically the anomalies of classical approaches. The proposed approach is based on a hybrid method which is spread over two stages, first one is character recognition by using the ontological model and the second one is word recognition based on spelling correction approach based on bigram codification for detection and correction of errors. The spelling error is broadly classified in two categories namely non-word error and real-word error. In this paper, we interested only on detection and correction of non-word errors because this is the only type of errors treated by an OCR. In addition, the use of an online external resource such as WordNet proves necessary to improve its performances.
Détails
| Langue originale | English |
|---|---|
| Revue | International Journal of Electrical and Computer Engineering (IJECE) |
| Volume | 5 |
| Numéro | 6 |
| Pages | 1458 |
| Éditeur | Institute of Advanced Engineering and Science (IAES) |
| ISSN | 2088-8708 |
| DOI | 10.11591/ijece.v5i6.pp1458-1467 |
| Statut de publication | Publié — 1 décembre 2015 |
Mots-clés
Empreinte
- Handwritten Text Recognition Techniques
- Natural Language Processing Techniques
- Topic Modeling
- optical character recognition
- OCR post-processing
- spelling correction
- bigram language model
- ontology (information science)
- WordNet
- word recognition
- Computer Vision and Pattern Recognition
- Artificial Intelligence
- Computer Science