It works
It does work. I ask my students to write a summary of an article. Of course, I ask them to use their own words.
This tool enables me, not only to compare the summary with the original article, but also to compare it to the database of previously presented papers. This has allowed me to spot "suspicious" coincidences between works from previous years and the current one.
Things that the developers could improve: separate databases. We could save a database (not only write some comments) so we could keep working with only those files. This would make the scan faster and it would be easier for us to know if we have included all the documents we wanted or if we have to include any other.
If it had that last feature Id give it 4 stars, and if it had the feature of checking the internet for coincidences, Id give it a 5+… ;o)
Stifenkin about Novus Scan