CAJ | 학술논문

目前文本水印算法多基于文本外在特征，很少利用文本内容上的内在关联性，通过对文本句子的主语和宾语进行指代冗余分析，构造用于嵌入水印的指代冗余矩阵，再根据水印信息和矩阵编码规则确定指代冗余矩阵修改位置，利用实体状态编码和状态转移操作修改原文本完成水印嵌入。该算法可以抵抗格式变换、同义词替换等攻击，具有较低的文本修改率和较好的鲁棒性。
목전문본수인산법다기우문본외재특정，흔소이용문본내용상적내재관련성，통과대문본구자적주어화빈어진행지대용여분석，구조용우감입수인적지대용여구진，재근거수인신식화구진편마규칙학정지대용여구진수개위치，이용실체상태편마화상태전이조작수개원문본완성수인감입。해산법가이저항격식변환、동의사체환등공격，구유교저적문본수개솔화교호적로봉성。
Most of the current text watermarking algorithms are based on external features of text, but sel-dom the internal relationship of text content is used . This paper constructs the coreference redundancy ma-trix as the direct carrier by analyzing the coreference redundancy of the sentences’ subjects and objects in the text, locates the coreference redundancy matrix elements which need to be modified according to the watermarking information and matrix coding rules, then revises the original text based on the entity status coding and state transfer operations. This algorithm can resist the attacks of the format changing, synonym substitution and so on with a lower modification rate and better robustness.