System and method for searching electronic documents created...

G - Physics – 06 – F

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G06F 17/30 (2006.01) G06K 9/00 (2006.01) G06K 9/72 (2006.01)

Patent

CA 2326901

Search requests are processed in order to compensate for characters and character strings misread during OCR scanning. After an alphanumeric search is entered (50), the system determines variant words associated with the entered alphanumeric search request according to a predefined table of possible OCR errors, the OCR(s) error probability of occurrence and a predefined threshold of probability of occurrences (52). When the processing is complete, a search engine then uses the variant words to search a database containing OCR scanned documents (54).

Des demandes de recherche sont traitées de manière à compenser les caractères et chaînes de caractères ayant subi des erreurs de lecture pendant le balayage associé à la reconnaissance optique de caractères. Après l'entrée (50) d'une recherche alphanumérique, le système détermine des variantes de mots associés à la demande de recherche alphanumérique entrée selon une table prédéfinie d'erreurs possibles de reconnaissance optique de caractères, la probabilité d'apparition d'erreurs de reconnaissance optique de caractères et un seuil prédéfini de probabilité d'apparition (52). Lorsque le traitement est achevé, une machine de recherche utilise ensuite les variantes de mots pour explorer une base de données contenant des documents (54) créés par reconnaissance optique de caractères.

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