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Subject:
Re: OCR accuracy
From:
"Grevin, Fred" <[log in to unmask]>
Reply To:
Records Management Program <[log in to unmask]>
Date:
Wed, 9 Apr 2008 10:00:50 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (59 lines) 
To the excellent and most interesting postings already made on this
topic, I would add two comments.

First, is the issue of undetected errors: where the software incorrectly
converts the raster image to character code, but "believes" its
conversion is correct. To my knowledge, this error rate is not part of
the vendor's promotional material. You would have to have knowledgeable
staff performing quality control to discover it. The costs of this type
of quality control might exceed the costs of constructing a more formal
metadata system, hence the value of the postings that suggest the
product of OCR is valuable more as a supplement than as a replacement.

Second, the error rates published by vendors and, I think, mentioned so
far in this discussion thread, apply to printed (typed) text. The error
rates (and, often, software) applicable to handwritten text are a whole
different matter.

Best regards.

Fred
===================================================================
Frederic J. Grevin
Email: [log in to unmask]
Phone: 212.788.8615
 
-----Original Message-----
From: Records Management Program [mailto:[log in to unmask]] On
Behalf Of Melissa Griffin Would Subscribe
Sent: Tuesday, April 08, 2008 16:24
To: [log in to unmask]
Subject: [RM] OCR accuracy

Hello All, 

I was asked a trick question today:  How  accurate is optical character 
recognition?  I wondering how accurate is OCR software/scanning that you

are running in your records shops? What accuracy percentage are you 
committing to/ promising users? 


Cheers, 

Melissa 



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