trait FactorGraph[T] extends AnyRef

Trait for Factor graphs used by Belief Propagation algorithms.

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  1. abstract def contains(v: Node): Boolean

    Returns true if the graph contains a node for a (single) variable.

  2. abstract def getFactorForNode(fn: FactorNode): Factor[T]

    Gets the factor for a particular factor node.

  3. abstract def getLastMessage(from: Node, to: Node): Factor[T]

    Gets the last message to a node from another.

  4. abstract def getMessagesForNode(node: Node): Iterable[(Node, Factor[T])]

    Get a list of messages from the node.

  5. abstract def getNeighbors(source: Node, excluding: Node): Iterable[Node]

    Returns all neighbors of a given node excluding the node of the second argument.

  6. abstract def getNeighbors(source: Node): Iterable[Node]

    Returns all neighbors of a given node.

  7. abstract def getNodes(): Iterable[Node]

    Returns all nodes in the factor graph.

  8. abstract def uniformFactor(v: List[Variable[_]]): Factor[T]

    Returns a uniform factor.

  9. abstract def update(from: Node, to: Node, f: Factor[T]): FactorGraph[T]

    Updates the factor graph with a message from a node to another.

    Updates the factor graph with a message from a node to another. Returns a new factor graph, which can be the same as this one.

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