Paper: Linguistic Steganography Using Automatically Generated Paraphrases

ACL ID N10-1084
Title Linguistic Steganography Using Automatically Generated Paraphrases
Venue Human Language Technologies
Session Main Conference
Year 2010
Authors

This paper describes a method for checking the acceptability of paraphrases in context. We use the Google n-gram data and a CCG parser to certify the paraphrasing grammati- cality and fluency. We collect a corpus of hu- man judgements to evaluate our system. The ultimate goal of our work is to integrate text paraphrasing into a Linguistic Steganography system, by using paraphrases to hide informa- tion in a cover text. We propose automati- cally generated paraphrases as a new and use- ful source of transformations for Linguistic Steganography, and show that our method for checking paraphrases is effective at maintain- ing a high level of imperceptibility, which is crucial for effective steganography.