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. 2019 Mar 28;6:20. doi: 10.3389/frobt.2019.00020

Figure 2.

Figure 2

Bipartite factor graph (left) and Forney-style factor graph (FFG) (middle) for the model of Equation (2), together with the message passing schedule for computing (Equation 3b) (right). In a bipartite factor graph, solid nodes represent factors and round nodes represent variables. In an FFG, edges represent variables and all nodes represent factors, where solid nodes indicate observations.