The Jensen-Shannon divergence is a symmetric divergence of distributions $P$ and $Q$,

$$\operatorname{D}_{\text{JS}} = \frac{1}{2} \left[ \operatorname{D}_{\text{KL}} \left(P \bigg\Vert \frac{P+Q}{2} \right) + \operatorname{D}_{\text{KL}} \left(Q \bigg\Vert \frac{P+Q}{2}\right) \right],$$

where $\operatorname{D}_{\text{KL}}$ is the .

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Lei Ma (2021). 'Jensen-Shannon Divergence', Datumorphism, 09 April. Available at: https://datumorphism.leima.is/cards/information/jensen-shannon-divergence/.

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• cards/information/jensen-shannon-divergence.md