Main features

When comparing texts the system does not use their original form. Instead so-called maps are used, which are data structures containing partial information about the texts. This approach has two major advantages:

  • original texts cannot be fully recovered from the database of their maps.
  • comparison of maps is sufficient to indicate direct (verbal) and indirect (message) similarities between the texts and can be carried out with much better efficiency than comparison of the original texts, one to one. Tests carried out so far have shown great resistance of the system to the methods of camouflage of undocumented borrowings known by the authors (word order changes, permutation of phrases and/or paragraphs, synonymic substitutions, compilation from multiple sources, using white characters and/or characters from mixed script systems, …).