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In the original publication, first author WanJun Yin's affiliation was incorrectly added. The correct affiliation should read as below.

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A simplex-centroid design for q mixture components comprises of all possible subsets of the q components, present in equal proportions. The design does not contain full mixture blends except the overall centroid. In real-life situations, all mixture blends comprise of at least a minimum proportion of each component. Here, we introduce simplex-centroid designs which contain complete blends but with some loss in D-efficiency and stability in G-efficiency. We call such designs as shrinkage simplexcentroid designs. Furthermore, we use the proposed designs to generate component-amount designs by their projection.

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