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arXiv 0811.4275math.OCmath.DG
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流形上的一致性optimization

Consensus optimization on manifolds

Alain Sarlette, Rodolphe Sepulchre

摘要:

本文考虑分布式共识算法,涉及N个代理商在连通的紧致齐次流形上进化。代理不跟踪外部引用,并根据通信图传达其相对状态。一致性问题是用一个费用函数的极值来表示的。这导致有效的梯度算法来同步(即最大化共识)或平衡(即最小化共识)代理;当通信图是有向的和时变的时,使用梯度算法的方便适应。费用函数被链接到一个特定的质心定义流形上,在这里引入的诱导算术平均,这是很容易计算的封闭形式,可能是独立的兴趣为一些流形。以特殊的正交群SO(n)和Grassmann流形Gr(p,n)为例进行了讨论.还绘制了与圆上的许多现有结果的链接。

英文摘要:

The present paper considers distributed consensus algorithms that involve N agents evolving on a connected compact homogeneous manifold. The agents track no external reference and communicate their relative state according to a communication graph. The consensus problem is formulated in terms of the extrema of a cost function. This leads to efficient gradient algorithms to synchronize (i.e. maximizing the consensus) or balance (i.e. minimizing the consensus) the agents; a convenient adaptation of the gradient algorithms is used when the communication graph is directed and time-varying. The cost function is linked to a specific centroid definition on manifolds, introduced here as the induced arithmetic mean, that is easily computable in closed form and may be of independent interest for a number of manifolds. The special orthogonal group SO(n) and the Grassmann manifold Gr(p,n) are treated as original examples. A link is also drawn with the many existing results on the circle.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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