Promoting engagement with quality communication in social media
Fig 2
Co-occurrence of recommendation on social media platforms.
Co-occurrence matrices displaying the proportion of recommendations applied together within the same posts for Twitter (top) and Facebook (bottom). Since the co-occurrence is a reciprocal quantity, the matrix is symmetric around the diagonal, thus only the upper triangular part is reported. As shown in the legend, darker colours indicate a higher co-occurrence of recommendations. In the case of Facebook, the topic Vaccines is missing due to the limited number of posts.