PS 体系包括: (1)非负性(non-negativity):RX≥0; (2)正奇次性(positive homogeneity) :RcX≥cRX,其中 c≥0; (3)弱可加性(subadditivity):RXY≤RXRY; :RX...
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non-negativity constraint 非负性约束 ; 非负限制式
Non-negative matrix factorization (NMF) has been proposed for multivariate data analysis, with non-negativity constraints.
非 负数据处理的一种多元统计分析方法。
Mathematical analyses of the model equations with regard to invariance of non-negativity, nature of equilibria and global stability are analyzed.
分析了系统的非负不变性、边界平衡点性质及全局渐近稳定性。
And that's the problem with negativity. Negative people are usually non-starters, because they can't imagine a positive outcome.
而这正是消极的问题,消极的人们通常都不会成功,因为他们无法想像积极的结果。
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