2/24/2023 0 Comments Subliminal synonym![]() ![]() In order to ensure the lexical substitutions in the cover text are imperceptible, the system uses the Google n-gram corpus (Brants and Franz 2006) for checking the applicability of a synonym in context. The proposed steganography system replaces selected cover words with their synonyms, which is the mechanism used to embed information. In this article, we aim at concealing secret information in natural language text by manipulating cover words. ![]() This method ensures that each word represents a unique sequence of bits, without cutting out large numbers of synonyms, and thus maintains a reasonable embedding capacity. We develop a novel method in which words are the vertices in a graph, synonyms are linked by edges, and the bits assigned to a word are determined by a vertex coding algorithm. Second, we address the problem that arises from words with more than one sense, which creates a potential ambiguity in terms of which bits are represented by a particular word. First, we use the Google n-gram corpus for checking the applicability of a synonym in context, and we evaluate this method using data from the SemEval lexical substitution task and human annotated data. In this article we propose two improvements to the use of synonym substitution for encoding hidden bits of information. However, few existing studies have studied the practical application of this approach. One of the major transformations used in linguistic steganography is synonym substitution. Linguistic steganography is concerned with hiding information in natural language text. ![]()
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