Figure 1 : Matrix and network representations of the document-entity matrix.

From: Cohesiveness in Financial News and its Relation to Market Volatility

Figure 1

Matrix representations of the document-document and entity-entity similarity matrices (left) and the corresponding network representations of the entity and document projections (right). The Frobenius norms of the two similarity matrices correspond to the sum of the squares of the connection weights in the two projections. The norms are equal, which indicates that cohesiveness is conserved in both projections.