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English
Etymology
From multi- + dimensions.
Noun
multidimensions pl (plural only)
- (mathematics) multiple dimensions
2015, Elad Hazan, Kfir Y. Levy, Shai Shalev-Shwartz, “Beyond Convexity: Stochastic Quasi-Convex Optimization”, in arXiv:Quasi-convexity broadens the concept of unimodality to multidimensions and allows for certain types of saddle points, which are a known hurdle for first-order optimization methods such as gradient decent.