The Cloud Top Heavenly Palace,a majestic palace complex built with snow in the Changbai Mountains scenic area in Jilin Province,was officially illuminated and opened to the public on December 26,2025.This impressive i...The Cloud Top Heavenly Palace,a majestic palace complex built with snow in the Changbai Mountains scenic area in Jilin Province,was officially illuminated and opened to the public on December 26,2025.This impressive installation,with a main building measuring 20 meters high and 60 meters wide,faithfully recreates a classic scene from the best-selling Grave Robbers'Chronicles web novel series by Xu Lei,better known by his pseudonym Nanpai Sanshu.展开更多
This paper studies the digit watermark technology of numeric attributes in relational database for database's information security.It proposes a new mechanism based on similar clouds watermark and gives the concep...This paper studies the digit watermark technology of numeric attributes in relational database for database's information security.It proposes a new mechanism based on similar clouds watermark and gives the concept of similar clouds.The algorithm SCWA that can insert the meaning watermark and detect it from the watermarked data is described.The mechanism can effectively and broadly scatter the watermark in the database;therefore the watermark is very robust.展开更多
文摘The Cloud Top Heavenly Palace,a majestic palace complex built with snow in the Changbai Mountains scenic area in Jilin Province,was officially illuminated and opened to the public on December 26,2025.This impressive installation,with a main building measuring 20 meters high and 60 meters wide,faithfully recreates a classic scene from the best-selling Grave Robbers'Chronicles web novel series by Xu Lei,better known by his pseudonym Nanpai Sanshu.
基金Supported by the National Natural Science Foun dation of China(60273072)863 Hi-technique Research(2002A A4Z3450)
文摘This paper studies the digit watermark technology of numeric attributes in relational database for database's information security.It proposes a new mechanism based on similar clouds watermark and gives the concept of similar clouds.The algorithm SCWA that can insert the meaning watermark and detect it from the watermarked data is described.The mechanism can effectively and broadly scatter the watermark in the database;therefore the watermark is very robust.
