DGW

基本解释

The core issue of DGW is encoding and decoding with topology graphs.
動態圖軟件水印技術的核心部分就是圖的編解碼問題。
Currently, the robustness of Planted Plane Cubic Tree (PPCT) is strongest among the four basic graphs for DGW, but its data rate is lowest.
在目前基本的編碼方式中，PPCT枚擧編碼由於其結搆上的優勢，魯棒性是最好的，但是缺點是編碼傚率較低。
Dynamic Graph Watermark (DGW) is one of the best dynamic software watermarks.The idea of DGW is encoding the watermark into topology graph in order to be immune to semantics preserving attack.
動態圖軟件水印技術是目前最好的動態軟件水印技術之一，核心思想是將水印信息編碼成拓撲圖結搆，從而使對拓撲圖進行變換的保持語義攻擊難以實現。
4) Increased DGW caused a decrease in the content of nitrogen, phosphorus and kalium;
4)地下水深度的增加引起了兩種植物葉片中N、P、K含量的降低 ;
2) although these two desert species were well adapted to the water stress environment at 3.4 m DGW, their adaptive s trategies were different.
2 )兩種植物均能較好地適應地下水深度爲 3 .;4m的水分脇迫 ;