Machine Learning, Data Science, Conditional Random Fields, Graphical Model, Handwriting Recognition.
variables Dⱼ. ϕⱼ(dⱼ) should be strictly positive for all possible values of dⱼ. For a subset of random variables to be represented as a factor or clique, all of them should be connected to each other in the graph. Also, the union of scopes of all the cliques should be equal to all the nodes present