Text uniqueness, using google or something else

Hi, i've some long texts. do you know if it's possible to check if a
given text is already on the web? maybe with a % of similarity. For
example a text which is >75% similar with another on the web isn't
unique.
Any advice?

Xdmx Xdmx wrote:

Hi, i've some long texts. do you know if it's possible to check if a
given text is already on the web? maybe with a % of similarity. For
example a text which is >75% similar with another on the web isn't
unique.
Any advice?

Anyone? :frowning:

This is not a simple problem, but there are some companies trying to
solve it:
http://turnitin.com