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Figure 5 | EPJ Data Science

Figure 5

From: Extracting complements and substitutes from sales data: a network perspective

Figure 5

Measures on the products, from co-purchases \((cn_{ij})\) whose diagonal shows the purchase frequency (left), the complementarity scores \(\mathbf{W}^{(c)}\) induced by the original measure \((\operatorname{sim}_{o}(i,j))\) (middle) and by the randomised configuration measure \((\operatorname{sim}_{r}(i,j))\) (right), where x-axis, y-axis are products in the same order as being listed in the simulated world assumptions

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