Пример #1
0
 def __init__(self, name):
     
     self._messages = []
     self._name = "Factor[%s]" % name
     self._variables = []
     self._messageToVariableBinding = HashMap()
Пример #2
0
    def __init__(self, name):

        self._messages = []
        self._name = "Factor[%s]" % name
        self._variables = []
        self._messageToVariableBinding = HashMap()
Пример #3
0
class Factor (object):
    def __init__(self, name):
        
        self._messages = []
        self._name = "Factor[%s]" % name
        self._variables = []
        self._messageToVariableBinding = HashMap()
        


    def getLogNormalization(self) :
        '''return The log-normalization constant of that factor'''
        return 0
    
    
    def getNumberOfMessages(self) :
        '''@return The number of messages that the factor has'''

        return len(self._messages)
    
    def getVariables(self) :
        return self._variables

    def getMessages(self) :
        return self._messages

    def updateMessageIndex(self, messageIndex) :
        '''Update the message and marginal of the i-th variable that the factor is connected to'''
        Guard.argumentIsValidIndex(messageIndex, len(self._messages), "messageIndex")
        message = self._messages[messageIndex]
        variable = self._messageToVariableBinding.getValue(message)  
        return self.updateMessageVariable(message, variable)

    def updateMessageVariable(self, message, variable) :
        raise Exception()
    
    def resetMarginals(self) :
        ''' Resets the marginal of the variables a factor is connected to'''
        allValues = self._messageToVariableBinding.getAllValues()
        for currentVariable in allValues:
            currentVariable.resetToPrior()

    def sendMessageIndex(self, messageIndex) :
        '''Sends the ith message to the marginal and returns the log-normalization constant'''
        Guard.argumentIsValidIndex(messageIndex, len(self._messages), "messageIndex")
        message = self._messages[messageIndex]
        variable = self._messageToVariableBinding.getValue(message)
        return self.sendMessageVariable(message, variable)

    def sendMessageVariable(self, message, variable) :
        pass


    def createVariableToMessageBinding(self, variable) :
        pass
    
    def createVariableToMessageBindingWithMessage(self, variable, message) :
        index = len(self._messages)
        localMessages = self._messages
        localMessages.append(message)
        self._messageToVariableBinding.setValue(message, variable)
        localVariables = self._variables
        localVariables.append(variable)
        return message

    def __str__(self):
        if self._name != None :
            return self._name
Пример #4
0
class Factor(object):
    def __init__(self, name):

        self._messages = []
        self._name = "Factor[%s]" % name
        self._variables = []
        self._messageToVariableBinding = HashMap()

    def getLogNormalization(self):
        """return The log-normalization constant of that factor"""
        return 0

    def getNumberOfMessages(self):
        """@return The number of messages that the factor has"""

        return len(self._messages)

    def getVariables(self):
        return self._variables

    def getMessages(self):
        return self._messages

    def updateMessageIndex(self, messageIndex):
        """Update the message and marginal of the i-th variable that the factor is connected to"""
        Guard.argumentIsValidIndex(messageIndex, len(self._messages), "messageIndex")
        message = self._messages[messageIndex]
        variable = self._messageToVariableBinding.getValue(message)
        return self.updateMessageVariable(message, variable)

    def updateMessageVariable(self, message, variable):
        raise Exception()

    def resetMarginals(self):
        """ Resets the marginal of the variables a factor is connected to"""
        allValues = self._messageToVariableBinding.getAllValues()
        for currentVariable in allValues:
            currentVariable.resetToPrior()

    def sendMessageIndex(self, messageIndex):
        """Sends the ith message to the marginal and returns the log-normalization constant"""
        Guard.argumentIsValidIndex(messageIndex, len(self._messages), "messageIndex")
        message = self._messages[messageIndex]
        variable = self._messageToVariableBinding.getValue(message)
        return self.sendMessageVariable(message, variable)

    def sendMessageVariable(self, message, variable):
        pass

    def createVariableToMessageBinding(self, variable):
        pass

    def createVariableToMessageBindingWithMessage(self, variable, message):
        index = len(self._messages)
        localMessages = self._messages
        localMessages.append(message)
        self._messageToVariableBinding.setValue(message, variable)
        localVariables = self._variables
        localVariables.append(variable)
        return message

    def __str__(self):
        if self._name != None:
            return self._name