Text correction for PDF converters

Details Text correction for PDF converters Text correction for PDF converters

2005-09-02

2010-11-02

Ries, Laurie (Department: 2176)

Data processing: presentation processing of document, operator i

Presentation processing of document

Edit, composition, or storage control

C715S245000

Reexamination Certificate

active

07827484

ABSTRACT:
To correct at least one extraneous or missing space in a document, weights are assigned to tokens contained in a dictionary. Each token is defined by an ordered sequence of non-space symbols. The weights are assigned based on at least one of a token length and frequency of occurrence of the token in the document. Corrected text is generated from text of the document by applying an ordered sequence of symbol-level transformations selected from a group of symbol-level transformations including at least (i) deleting a space, (ii) inserting a space, and (iii) copying a symbol. The ordered sequence of symbol-level transformations is optimized respective to an objective function dependent upon the weights of tokens of the corrected text.

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