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arXiv 1611.06950cs.CVcs.CLcs.LG
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基于统计学习的OCR文本校正

Statistical Learning for OCR Text Correction

Dalhousie University(达尔豪斯大学);University of Louisiana at Lafayette(路易斯安那大学拉斐特分校)

Jie Mei, Aminul Islam, Yajing Wu, Abidalrahman Moh'd, Evangelos E. Milios

摘要:

光学字符识别(OCR)的准确性对文本分析流水线后续应用的成功至关重要。最近的OCR后处理模型显着提高了OCR生成的文本的质量,但仍然倾向于从有限的观察建议校正候选人,而不足以说明OCR错误的特征。在本文中,我们展示了如何扩大候选建议空间,通过使用外部语料库,并整合OCR特定的功能,在回归的方法来纠正OCR产生的错误。评估结果表明,我们的模型可以纠正61.5%的OCR错误(考虑前1个建议)和71.5%的OCR错误(考虑前3个建议),对于理论校正上限为78%的情况。

英文摘要:

The accuracy of Optical Character Recognition (OCR) is crucial to the success of subsequent applications used in text analyzing pipeline. Recent models of OCR post-processing significantly improve the quality of OCR-generated text, but are still prone to suggest correction candidates from limited observations while insufficiently accounting for the characteristics of OCR errors. In this paper, we show how to enlarge candidate suggestion space by using external corpus and integrating OCR-specific features in a regression approach to correct OCR-generated errors. The evaluation results show that our model can correct 61.5% of the OCR-errors (considering the top 1 suggestion) and 71.5% of the OCR-errors (considering the top 3 suggestions), for cases where the theoretical correction upper-bound is 78%.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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