The mathematical model takes spectrum value and wave direction as variables and is solved in real domain, it is suited for wave computation of large sea area.

该模型以组成波的谱值及波向为变量，在实数域内求解，适合大面积海区波场计算。

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The matching affinity between two vectors was measured using cosine similarity to develop a real-valued negative selection algorithm with the matching calculation in the real domain.

通过沿时间轴对采样信号加窗的方式构造向量集合，利用余弦相似度进行向量间亲合度的匹配计算，实现在实数域进行匹配计算的实数值负向选择算法。

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If the new domain is real, it must have been around for several billion years, and must thus have something going for it.

ECONOMIST: A new domain of life

The real hope for significant change in this domain arrives not from hardware or regulations, but from software--Silicon Valley information-technology tamed, civilized and optimized for the building market.

FORBES: Magazine Article

His reasoning is simple: the cyber domain is just like the real world, and in the real world we have treaties and oversight agencies to monitor adherence to them.

FORBES: Is An International Cyber Regulatory Agency Needed?