IMPACT Final Conference - Jesse de Does

IMPACT Lexica in OCR and IR Evaluation for Bulgarian, Czech, Dutch, English, French, German, Polish, Slovenian, Spanish Jesse de Does

Contents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Use of lexica in OCR ,[object Object],[object Object],[object Object],[object Object],[object Object],date footertext

Finereader SDK external dictionaries ,[object Object],eerde cc cc eerste cc f c o o External dictionary prunes this to the linguistically possible ones (In this case: { eerste, eerde}) Fuzzy Word: set of character recognition candidates for each position in a word

Finereader SDK external dictionaries eerde cc cc eerste cc f c o o ,[object Object],[object Object],[object Object],[object Object],{eerste, eerde} x ____

OCR Evaluation ,[object Object],[object Object],[object Object],[object Object],[object Object]

Dictionary “cleaning” ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Evaluation procedure (data) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Bulgarian ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Freq. OCR->GT 114 д->л 218 ш->н і 242 и->п 247 г->т 256 ъ->ь 270 ь->ъ 356 и->н 378 п->н 441 е->с 579 н->п 732 н->и 825 ж -> ѫ 968 п->и Freq. OCR->GT 165 е-> ѣ 185 г->т 200 е->с 205 и->п 217 ъ->ь 220 ш->н і 249 и->н 283 ж-> ѫ 330 ь->ъ 354 п->н 463 н->п 599 н->и 733 п->и

1. Czech ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

2.Dutch ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

English ,[object Object],[object Object],[object Object],[object Object],[object Object]

General set with various choices of dictionary – no improvement!

More distinct improvement on 17th century set with special dictionary compiled from OED quotations dated 1580-1720

French ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

German ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Polish ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Slovene ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Spanish ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Evaluation of “IR” ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Evaluation method ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

English ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Spanish ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

IMPACT Final Conference - Jesse de Does

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IMPACT Final Conference - Jesse de Does