Indeed, preserving our original query semantics while providing for reasonable performance often required iterative design, coding, and testing.
实际上,为了在提供合理性能的同时保留初始的查询语义,我们需要反复地设计、编码和测试。
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.
动态图软件水印技术是目前最好的动态软件水印技术之一,核心思想是将水印信息编码成拓扑图结构,从而使对拓扑图进行变换的保持语义攻击难以实现。
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