Steganalysis attack is to statistically estimate the embedded watermark in the watermarked multimedia,and the estimated watermark may be destroyed by the attacker.The existing methods of false negative probability,how...Steganalysis attack is to statistically estimate the embedded watermark in the watermarked multimedia,and the estimated watermark may be destroyed by the attacker.The existing methods of false negative probability,however,do not consider the influence of steganalysis attack.This paper proposed the game theory based false negative probability to estimate the impacts of steganalysis attack,as well as unintentional attack.Specifically,game theory was used to model the collision between the embedment and steganalysis attack,and derive the optimal building embedding/attacking strategy.Such optimal playing strategies devote to calculating the attacker destructed watermark,used for calculation of the game theory based false negative probability.The experimental results show that watermark detection reliability measured using our proposed method,in comparison,can better reflect the real scenario in which the embedded watermark undergoes unintentional attack and the attacker using steganalysis attack.This paper provides a foundation for investigating countermeasures of digital watermarking community against steganalysis attack.展开更多
Politeness is a social phenomenon, a means to achieve good interpersonal relationships, and a norm imposed by social conventions. Politeness is universal, that is, it can be observed as a phenomenon in all cultures. I...Politeness is a social phenomenon, a means to achieve good interpersonal relationships, and a norm imposed by social conventions. Politeness is universal, that is, it can be observed as a phenomenon in all cultures. It is resorted to by speakers of different languages as a means to an end, and it is recognized as a norm in all societies. Despite its universality, the actual manifestations of politeness, the ways to realize politeness, and the standards differ in different cultures. Politeness is, to some extent, culture-specific.展开更多
基金supported by the National Natural Science Foundation of China（No. 71020107027） in part by the Doctoral Startup Fundation of Xinjiang University of Finace and Economics
文摘Steganalysis attack is to statistically estimate the embedded watermark in the watermarked multimedia,and the estimated watermark may be destroyed by the attacker.The existing methods of false negative probability,however,do not consider the influence of steganalysis attack.This paper proposed the game theory based false negative probability to estimate the impacts of steganalysis attack,as well as unintentional attack.Specifically,game theory was used to model the collision between the embedment and steganalysis attack,and derive the optimal building embedding/attacking strategy.Such optimal playing strategies devote to calculating the attacker destructed watermark,used for calculation of the game theory based false negative probability.The experimental results show that watermark detection reliability measured using our proposed method,in comparison,can better reflect the real scenario in which the embedded watermark undergoes unintentional attack and the attacker using steganalysis attack.This paper provides a foundation for investigating countermeasures of digital watermarking community against steganalysis attack.
文摘Politeness is a social phenomenon, a means to achieve good interpersonal relationships, and a norm imposed by social conventions. Politeness is universal, that is, it can be observed as a phenomenon in all cultures. It is resorted to by speakers of different languages as a means to an end, and it is recognized as a norm in all societies. Despite its universality, the actual manifestations of politeness, the ways to realize politeness, and the standards differ in different cultures. Politeness is, to some extent, culture-specific.
