巴爾金指出，北京認為特朗普（Donald Trump，川普）對歐洲咄咄逼人的姿態增強了自己對歐洲各國的影響力，但同時，在中國經濟問題艱困、美國市場仍對中國商品實施管制之際，北京也需要歐洲市場。因此北京盼望德國總理的訪問展現中德夥伴關係形象，同時將自己塑造成日益脆弱的地緣政治格局中穩定的保障者。
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Like the N-convex algorithm, this algorithm attempts to find a set of candidates whose centroid is close to . The key difference is that instead of taking unique candidates, we allow candidates to populate the set multiple times. The result is that the weight of each candidate is simply given by its frequency in the list, which we can then index by random selection: