LWN.net Logo

Unexpected benefit?

Unexpected benefit?

Posted Aug 24, 2006 6:41 UTC (Thu) by eru (subscriber, #2753)
In reply to: Devious by gjmarter
Parent article: Fighting image spam

On the other hand, this arms race might help advance the state-of-the-art in free OCR software, which would be a good outcome...


(Log in to post comments)

Unexpected benefit?

Posted Aug 24, 2006 7:17 UTC (Thu) by drag (subscriber, #31333) [Link]

Hell ya.

High quality OCR software for open source software would rock. It would be usefull for a whole bunch of different things.

For example.. improved handwriting recognition, maybe? Increase accessability for disabled people would be another purpose. Make it easy and cheaper for people to scan in massive amounts of written and printed documents for archival purposes.

If they can get that improved then it would make the fight against spam much more worthwhile then just fighting spam. :)

Plus it would be great if SA is able to outwit the spammers with the aid super cow powers of open source. Because this would be simply something that is not possible with closed source software. The anti-virus vs the pro-virus people have proven time and time again that crafty folks on irc channels can defeat big corprate money.

Unexpected benefit?

Posted Aug 24, 2006 9:45 UTC (Thu) by NAR (subscriber, #1313) [Link]

but might help defeating some of the current defense strategies used against web forum spamming (i.e. put an image to the registrating page which is hard to detect by a computer but easier to detect by a user, and type the string on the image into a textfield)...

Bye,NAR

Unexpected benefit?

Posted Aug 24, 2006 12:50 UTC (Thu) by eru (subscriber, #2753) [Link]

You mean "captchas". One way to make OCR ineffective against them is to use pictures of something, instead of strings. For example, show photos of well-known people, buildings, or animal species and ask the person to type the name. For a bot to beat that, it would have to do sophisticated pattern-matching against a large library of pictures, making it infeasible for spammers.

Unexpected benefit?

Posted Aug 24, 2006 16:13 UTC (Thu) by NAR (subscriber, #1313) [Link]

I'm afraid it would be really hard to create a set of images that every user would recognize - after all, "well known" is a relative concept.

Bye,NAR

Unexpected benefit?

Posted Aug 24, 2006 18:36 UTC (Thu) by mattdm (subscriber, #18) [Link]

The other benefit would hopefully be that sites would stop using CAPTCHAs.

Copyright © 2012, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds