A Text Watermarking Algorithm Based on Dependency Parsing
Wen Dahua · Journal of Changchun University of Science and Technology · 2011
A method on sentence layer is proposed.Because there are many sentence structures such as ‘SBV ADV’ and ‘SBV ADV POB’ existing in text.The adverbs in ‘ADV’ structures and the prepositions in ‘POB’ structures have tight relations with head words of the text,they are always ideographic strongly and play a more important role.Based on this character,the information is embedded in the text by the synonyms’ swapping of adverbs or adding and deleting adverbs.Combined with other similar algorithms through experiments,the algorithm has large watermarking capacity,strong robustness and good invisibility.