edu::tum::cs::bayesnets::core::BeliefNetworkEx Class Reference

Inheritance diagram for edu::tum::cs::bayesnets::core::BeliefNetworkEx:

Classes
class	CPTWalker
Public Member Functions
BeliefNode	addDecisionNode (String name)
BeliefNode	addNode (String name, Domain domain, String attributeName)
BeliefNode	addNode (String name, Domain domain)
BeliefNode	addNode (String name)
void	addNode (BeliefNode node)
	BeliefNetworkEx ()
	BeliefNetworkEx (String filename) throws Exception
	BeliefNetworkEx (BeliefNetwork bn)
HashMap< BeliefNode, double[]>	computePriors (int[] evidenceDomainIndices)
void	connect (BeliefNode parent, BeliefNode child)
void	connect (BeliefNode parent, BeliefNode child, boolean adjustCPF)
void	connect (String node1, String node2) throws Exception
void	dump ()
int[]	evidence2DomainIndices (String[][] evidences)
WeightedSample[]	getAssignmentDistribution (String[][] evidences, String[] queryNodeNames, int numSamples) throws Exception
String	getAttributeNameForNode (String nodeName)
double	getCPTProbability (BeliefNode node, int[] nodeDomainIndices)
String[]	getDiscreteDomainAsArray (String nodeName)
Domain	getDomain (String nodeName)
int	getDomainIndex (BeliefNode node, String value)
int[]	getDomainProductNodeIndices (BeliefNode node)
BeliefNode	getNode (int idx)
BeliefNode	getNode (String name)
int[]	getNodeDomainIndicesFromStrings (String[][] nodeAndDomains)
int	getNodeIndex (BeliefNode node)
int	getNodeIndex (String name)
Set< String >	getNodeNamesForAttribute (String attributeName)
BeliefNode[]	getNodes ()
double	getNumWorlds ()
double	getProbability (String[][] queries, String[][] evidences) throws Exception
HashMap< String, String >	getSample (Random generator) throws Exception
double	getSampledProbability (String[][] queries, String[][] evidences, int numSamples) throws Exception
int[]	getTopologicalOrder ()
WeightedSample	getWeightedSample (int[] nodeOrder, int[] evidenceDomainIndices, Random generator) throws Exception
WeightedSample	getWeightedSample (String[][] evidences, Random generator) throws Exception
double	getWorldProbability (int[] nodeDomainIndices)
void	printDomain ()
void	printFullJoint () throws Exception
void	queryShell ()
void	removeAllEvidences ()
void	save () throws Exception
void	save (String filename, Exporter exporter) throws FileNotFoundException
void	save (String filename) throws Exception
void	savePMML (String filename) throws FileNotFoundException
void	saveXMLBIF (String filename) throws FileNotFoundException
void	setEvidence (String nodeName, String outcome) throws Exception
void	show (String pluginDir)
void	show ()
void	sortNodeDomain (String nodeName, boolean numeric) throws Exception
void	walkCPT (BeliefNode node, CPTWalker walker)
Static Public Member Functions
static String[]	getDiscreteDomainAsArray (BeliefNode node)
static BeliefNetwork	load (String filename) throws Exception
static BeliefNetwork	load (String filename, Importer importer) throws FileNotFoundException
static void	registerDefaultPlugins ()
static void	save (BeliefNetwork net, String filename, Exporter exporter) throws FileNotFoundException
static void	save (BeliefNetwork net, String filename) throws Exception
Public Attributes
BeliefNetwork	bn
Static Public Attributes
static final int	MAX_TRIALS = 5000
Protected Member Functions
void	addAttributeMapping (String nodeName, String attributeName)
void	computePrior (HashMap< BeliefNode, double[]> priors, int[] evidenceDomainIndices, CPF cpf, int i, int[] addr, double[] dist)
void	initAttributeMapping ()
void	printProbabilities (int node, Stack< String[]> evidence) throws Exception
void	walkCPT (CPTWalker walker, CPF cpf, int[] addr, int i)
Static Protected Member Functions
static String[][]	readList (String list) throws java.lang.Exception
Protected Attributes
Map< String, Set< String > >	attributeToNodeNameMapping = new HashMap<String, Set<String>>()
String	filename
Map< String, String >	nodeNameToAttributeMapping = new HashMap<String, String>()
Static Package Functions
	[static initializer]
Static Package Attributes
static final Logger	logger = Logger.getLogger(BeliefNetworkEx.class)

Detailed Description

An instance of class BeliefNetworkEx represents a full Bayesian Network. It is a wrapper for BNJ's BeliefNetwork class with extended functionality. BeliefNetwork could not simply be extended by inheritance because virtually all members are declared private. Therefore, BeliefNetworkEx has a public member bn, which is an instance of BeliefNetwork.

Author:: Dominik Jain

Definition at line 56 of file BeliefNetworkEx.java.

Constructor & Destructor Documentation

edu::tum::cs::bayesnets::core::BeliefNetworkEx::BeliefNetworkEx ( BeliefNetwork bn ) [inline]

constructs a BeliefNetworkEx object from a BNJ BeliefNetwork object

Parameters:

bn

the BNJ BeliefNetwork object

Definition at line 97 of file BeliefNetworkEx.java.

edu::tum::cs::bayesnets::core::BeliefNetworkEx::BeliefNetworkEx ( String filename ) throws Exception [inline]

constructs a BeliefNetworkEx object from a saved network file

Parameters:

filename

the name of the file to load the network from

Exceptions:

Exception

Definition at line 107 of file BeliefNetworkEx.java.

edu::tum::cs::bayesnets::core::BeliefNetworkEx::BeliefNetworkEx ( ) [inline]

constructs an empty network. Use methods addNode and connect to define the network structure.

Definition at line 116 of file BeliefNetworkEx.java.

Member Function Documentation

edu::tum::cs::bayesnets::core::BeliefNetworkEx::[static initializer] ( ) [inline, static, package]

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::addAttributeMapping	(	String	nodeName,
		String	attributeName
	)			`[inline, protected]`

Add a link from the node name to the attribute name. Insert an entry into nodeNameToAttributeMapping and into attributeToNodeNameMapping.

Parameters:

	nodeName	the name of the node to link.
	attributeName	the name of the attribute to be linked with the node.

Definition at line 135 of file BeliefNetworkEx.java.

BeliefNode edu::tum::cs::bayesnets::core::BeliefNetworkEx::addDecisionNode ( String name ) [inline]

adds a decision node (boolean) to the network

Parameters:

name

label of the node

Definition at line 176 of file BeliefNetworkEx.java.

BeliefNode edu::tum::cs::bayesnets::core::BeliefNetworkEx::addNode	(	String	name,
		Domain	domain,
		String	attributeName
	)			`[inline]`

adds a node with the given name and domain and attribute name to the network.

Parameters:

	name	the name of the node
	domain	the node's domain (usually an instance of BNJ's class Discrete)
	attributeName	the name of the attribute that is assigned to the node

Returns:: a reference to the BeliefNode object that was constructed

Definition at line 211 of file BeliefNetworkEx.java.

BeliefNode edu::tum::cs::bayesnets::core::BeliefNetworkEx::addNode	(	String	name,
		Domain	domain
	)			`[inline]`

adds a node with the given name and domain to the network. Associate the attribute with the same name to the node.

Parameters:

	name	the name of the node
	domain	the node's domain (usually an instance of BNJ's class Discrete)

Returns:: a reference to the BeliefNode object that was constructed

Definition at line 200 of file BeliefNetworkEx.java.

BeliefNode edu::tum::cs::bayesnets::core::BeliefNetworkEx::addNode ( String name ) [inline]

adds a node with the given name and the standard discrete domain {True, False} to the network

Parameters:

name

the name of the node

Returns:: a reference to the BeliefNode object that was constructed

Definition at line 189 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::addNode ( BeliefNode node ) [inline]

adds a node to the network

Parameters:

node

the node that is to be added

Definition at line 167 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::computePrior	(	HashMap< BeliefNode, double[]>	priors,
		int[]	evidenceDomainIndices,
		CPF	cpf,
		int	i,
		int[]	addr,
		double[]	dist
	)			`[inline, protected]`

Definition at line 1108 of file BeliefNetworkEx.java.

HashMap<BeliefNode, double[]> edu::tum::cs::bayesnets::core::BeliefNetworkEx::computePriors ( int[] evidenceDomainIndices ) [inline]

computes the prior distribution of each node

Parameters:

evidenceDomainIndices

may be null, otherwise evidence to be "faked in" (domain index for each of the nodes, -1 for no evidence). The prior of an evidence node is then calculated as 1 and nodes lower in the topology will consider the evidence in their priors.

Returns:

Definition at line 1087 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::connect	(	BeliefNode	parent,
		BeliefNode	child
	)			`[inline]`

Definition at line 270 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::connect	(	BeliefNode	parent,
		BeliefNode	child,
		boolean	adjustCPF
	)			`[inline]`

connect two nodes

Parameters:

	parent	parent which the bnode will be a child of
	child	node which will be made a child of parent
	adjustCPF	whether to adjust the CPF as well (otherwise only the graph is altered); should be set to false only if the CPF is manually initialized later on

Definition at line 254 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::connect	(	String	node1,
		String	node2
	)			throws Exception `[inline]`

adds an edge to the network, i.e. a dependency

Parameters:

	node1	the name of the node that influences another
	node2	the name of node that is influenced

Exceptions:

Exception

if either of the node names are invalid

Definition at line 225 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::dump ( ) [inline]

Dump the context of the net to the logger.

Definition at line 1025 of file BeliefNetworkEx.java.

int [] edu::tum::cs::bayesnets::core::BeliefNetworkEx::evidence2DomainIndices ( String evidences[][] ) [inline]

Definition at line 927 of file BeliefNetworkEx.java.

WeightedSample [] edu::tum::cs::bayesnets::core::BeliefNetworkEx::getAssignmentDistribution	(	String	evidences[][],
		String[]	queryNodeNames,
		int	numSamples
	)			throws Exception `[inline]`

Get the sample assignment and its sampled probability as the weight sorted by probability.

Parameters:

	evidences	the evidences for the distribution.
	queryNodes	the nodes that should be sampled.
	numSamples	the number of samples to draw from.

Returns:: the accumulated samples and their sampled conditional probabilities given the evidences or null if we run out of trials for the first sample.

Exceptions:

Exception

Definition at line 758 of file BeliefNetworkEx.java.

String edu::tum::cs::bayesnets::core::BeliefNetworkEx::getAttributeNameForNode ( String nodeName ) [inline]

Get the attribute name that is linked to the given node.

Parameters:

nodeName

the name of the node.

Returns:: the attribute's name.

Definition at line 150 of file BeliefNetworkEx.java.

double edu::tum::cs::bayesnets::core::BeliefNetworkEx::getCPTProbability	(	BeliefNode	node,
		int[]	nodeDomainIndices
	)			`[inline]`

Get a specific entry in the cpt of the given node. The nodeDomainIndices should contain a value for each node in the BeliefNet but only values in the domain product of the node are queried for. WARNING: This is very slow (mainly because getDomainProductNodeIndices performs a linear search for each node)

Parameters:

	node	the node the CPT should come from.
	nodeDomainIndices	the values the nodes should have (domain indices for all the nodes in the network)

Returns:: the probability entry in the CPT.

Definition at line 821 of file BeliefNetworkEx.java.

String [] edu::tum::cs::bayesnets::core::BeliefNetworkEx::getDiscreteDomainAsArray ( String nodeName ) [inline]

Definition at line 1018 of file BeliefNetworkEx.java.

static String [] edu::tum::cs::bayesnets::core::BeliefNetworkEx::getDiscreteDomainAsArray ( BeliefNode node ) [inline, static]

Definition at line 1010 of file BeliefNetworkEx.java.

Domain edu::tum::cs::bayesnets::core::BeliefNetworkEx::getDomain ( String nodeName ) [inline]

returns the domain of the node with the given name

Parameters:

nodeName

the name of the node for which the domain is to be returned

Returns:: the domain of the node (usually instance of class Discrete) or null if the node name is invalid

Definition at line 634 of file BeliefNetworkEx.java.

int edu::tum::cs::bayesnets::core::BeliefNetworkEx::getDomainIndex	(	BeliefNode	node,
		String	value
	)			`[inline]`

gets the index of the given value inside the given node's domain

Parameters:

	node	a node with a discrete domain
	value	the value whose index to search for

Returns:: the index of the value in the node's domain

Definition at line 1077 of file BeliefNetworkEx.java.

int [] edu::tum::cs::bayesnets::core::BeliefNetworkEx::getDomainProductNodeIndices ( BeliefNode node ) [inline]

Get the indices of the nodes that the CPT of the given node depends on.

Parameters:

node

the node to take the CPT from.

Returns:: the indices of the nodes that the CPT of the given node depends on.

Definition at line 308 of file BeliefNetworkEx.java.

BeliefNode edu::tum::cs::bayesnets::core::BeliefNetworkEx::getNode ( int idx ) [inline]

Definition at line 286 of file BeliefNetworkEx.java.

BeliefNode edu::tum::cs::bayesnets::core::BeliefNetworkEx::getNode ( String name ) [inline]

retrieves the node with the given name

Parameters:

name

the name of the node

Returns:: a reference to the node (or null if there is no node with the given name)

Reimplemented in edu::tum::cs::srl::bayesnets::RelationalBeliefNetwork.

Definition at line 279 of file BeliefNetworkEx.java.

int [] edu::tum::cs::bayesnets::core::BeliefNetworkEx::getNodeDomainIndicesFromStrings ( String nodeAndDomains[][] ) [inline]

Get the indices into the domains of the nodes for the given node value assignments.

Parameters:

nodeAndDomains

the assignments to be converted.

Returns:: the assignment converted to doamin indices.

Definition at line 321 of file BeliefNetworkEx.java.

int edu::tum::cs::bayesnets::core::BeliefNetworkEx::getNodeIndex ( BeliefNode node ) [inline]

Definition at line 353 of file BeliefNetworkEx.java.

int edu::tum::cs::bayesnets::core::BeliefNetworkEx::getNodeIndex ( String name ) [inline]

get the index (into the BeliefNetwork's array of nodes) of the node with the given name

Parameters:

name

the name of the node

Returns:: the index of the node (or -1 if there is no node with the given name)

Reimplemented in edu::tum::cs::srl::bayesnets::RelationalBeliefNetwork.

Definition at line 295 of file BeliefNetworkEx.java.

Set<String> edu::tum::cs::bayesnets::core::BeliefNetworkEx::getNodeNamesForAttribute ( String attributeName ) [inline]

Get the node names that are linked to the given attribute name.

Parameters:

attributeName

the attribute name the nodes are linked to.

Returns:: the node names that are linked to the attribute.

Definition at line 159 of file BeliefNetworkEx.java.

BeliefNode [] edu::tum::cs::bayesnets::core::BeliefNetworkEx::getNodes ( ) [inline]

Definition at line 1147 of file BeliefNetworkEx.java.

double edu::tum::cs::bayesnets::core::BeliefNetworkEx::getNumWorlds ( ) [inline]

gets the total number of possible worlds

Definition at line 1154 of file BeliefNetworkEx.java.

double edu::tum::cs::bayesnets::core::BeliefNetworkEx::getProbability	(	String	queries[][],
		String	evidences[][]
	)			throws Exception `[inline]`

calculates a probability Pr[X=x, Y=y, ... | E=e, F=f, ...]

Parameters:

	queries	an array of 2-element string arrays (variable, outcome) that represents the conjunction "X=x AND Y=y AND ...";
	evidences	the conjunction of evidences, specified in the same way

Returns:: the calculated probability

Exceptions:

Exception

Definition at line 386 of file BeliefNetworkEx.java.

HashMap<String,String> edu::tum::cs::bayesnets::core::BeliefNetworkEx::getSample ( Random generator ) throws Exception [inline]

performs sampling on the network and returns a sample of the marginal distribution represented by this Bayesian network; evidences that are set during sampling are removed afterwards in order to retain the original state of the network.

Returns:: a hashmap of (node name, string value) pairs representing the sample

Parameters:

generator

random number generator to use to generate sample (null to create one)

Exceptions:

Exception

Definition at line 971 of file BeliefNetworkEx.java.

double edu::tum::cs::bayesnets::core::BeliefNetworkEx::getSampledProbability	(	String	queries[][],
		String	evidences[][],
		int	numSamples
	)			throws Exception `[inline]`

Calculates a probability Pr[X=x, Y=y, ... | E=e, F=f, ...] by sampling a number of samples.

Parameters:

	queries	an array of 2-element string arrays (variable, outcome) that represents the conjunction "X=x AND Y=y AND ...".
	evidences	the conjunction of evidences, specified in the same way.
	numSamples	the number of samples to draw.

Returns:: the calculated probability.

Exceptions:

Exception

Definition at line 851 of file BeliefNetworkEx.java.

int [] edu::tum::cs::bayesnets::core::BeliefNetworkEx::getTopologicalOrder ( ) [inline]

gets a topological ordering of the network's nodes

Returns:: an array of integers containing node indices

Definition at line 806 of file BeliefNetworkEx.java.

WeightedSample edu::tum::cs::bayesnets::core::BeliefNetworkEx::getWeightedSample	(	int[]	nodeOrder,
		int[]	evidenceDomainIndices,
		Random	generator
	)			throws Exception `[inline]`

Definition at line 882 of file BeliefNetworkEx.java.

WeightedSample edu::tum::cs::bayesnets::core::BeliefNetworkEx::getWeightedSample	(	String	evidences[][],
		Random	generator
	)			throws Exception `[inline]`

Sample from the BeliefNet via likelihood weighted sampling.

Parameters:

	evidences	the evidences for the sample.
	sampleDomainIndexes	the resulting domain indexes for each node. The length must be initialized to the number of nodes in the net.

Returns:

Exceptions:

Exception

Definition at line 875 of file BeliefNetworkEx.java.

double edu::tum::cs::bayesnets::core::BeliefNetworkEx::getWorldProbability ( int[] nodeDomainIndices ) [inline]

gets the probability of the possible world given by the vector of domain indices

Parameters:

nodeDomainIndices

domain indices for each of the node's random variables

Returns:

Definition at line 1139 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::initAttributeMapping ( ) [inline, protected]

Initialize the attribute mapping with the basenodes' names to itself respectively.

Definition at line 123 of file BeliefNetworkEx.java.

static BeliefNetwork edu::tum::cs::bayesnets::core::BeliefNetworkEx::load ( String filename ) throws Exception [inline, static]

loads a Bayesian network from the given file (determining a suitable importer from the extension)

Parameters:

filename

Returns:

Exceptions:

Exception

Definition at line 504 of file BeliefNetworkEx.java.

static BeliefNetwork edu::tum::cs::bayesnets::core::BeliefNetworkEx::load	(	String	filename,
		Importer	importer
	)			throws FileNotFoundException `[inline, static]`

static function for loading a Bayesian network into an instance of class BeliefNetwork

Parameters:

	filename	the file containing the network data
	importer	an importer that is capable of understanding the file format

Returns:: the loaded network in a new instance of class BeliefNetwork

Exceptions:

FileNotFoundException

Definition at line 491 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::printDomain ( ) [inline]

prints domain information for all nodes of the network to System.out

Definition at line 469 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::printFullJoint ( ) throws Exception [inline]

Definition at line 462 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::printProbabilities	(	int	node,
		Stack< String[]>	evidence
	)			throws Exception `[inline, protected]`

Definition at line 436 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::queryShell ( ) [inline]

starts a shell that allows the user to query the network

Definition at line 701 of file BeliefNetworkEx.java.

static String [][] edu::tum::cs::bayesnets::core::BeliefNetworkEx::readList ( String list ) throws java.lang.Exception [inline, static, protected]

helper function for queryShell that reads a list of comma-separated assignments "A=a,B=b,..." into an array [["A","a"],["B","b"],...]

Parameters:

list

Returns:

Exceptions:

java.lang.Exception

Definition at line 685 of file BeliefNetworkEx.java.

static void edu::tum::cs::bayesnets::core::BeliefNetworkEx::registerDefaultPlugins ( ) [inline, static]

Definition at line 651 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::removeAllEvidences ( ) [inline]

Remove all evidences.

Definition at line 835 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::save ( ) throws Exception [inline]

writes the Bayesian network to the same file it was loaded from

Exceptions:

Exception

Definition at line 585 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::save	(	String	filename,
		Exporter	exporter
	)			throws FileNotFoundException `[inline]`

writes the Bayesian network to a file with the given name using an exporter

Parameters:

	filename	the file to write to
	exporter	an exporter for the desired file format

Exceptions:

FileNotFoundException

Definition at line 558 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::save ( String filename ) throws Exception [inline]

saves a Bayesian network to the given filename (determining a suitable exporter from the extension)

Parameters:

filename

Returns:

Exceptions:

Exception

Definition at line 548 of file BeliefNetworkEx.java.

static void edu::tum::cs::bayesnets::core::BeliefNetworkEx::save	(	BeliefNetwork	net,
		String	filename,
		Exporter	exporter
	)			throws FileNotFoundException `[inline, static]`

static function for writing a Bayesian network to a file using a given exporter

Parameters:

	net	the network to be written
	filename	the file to write to
	exporter	an exporter for the desired file format

Exceptions:

FileNotFoundException

Definition at line 537 of file BeliefNetworkEx.java.

static void edu::tum::cs::bayesnets::core::BeliefNetworkEx::save	(	BeliefNetwork	net,
		String	filename
	)			throws Exception `[inline, static]`

saves a Bayesian network to the given filename (determining a suitable exporter from the extension)

Parameters:

filename

Returns:

Exceptions:

Exception

Definition at line 520 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::savePMML ( String filename ) throws FileNotFoundException [inline]

writes the Bayesian network to a file with the given name in a PMML-based format

Parameters:

filename

the file to write to

Exceptions:

FileNotFoundException

Definition at line 576 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::saveXMLBIF ( String filename ) throws FileNotFoundException [inline]

writes the Bayesian network to a file with the given name in XML-BIF format

Parameters:

filename

the file to write to

Exceptions:

FileNotFoundException

Definition at line 567 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::setEvidence	(	String	nodeName,
		String	outcome
	)			throws Exception `[inline]`

sets evidence for one of the network's node

Parameters:

	nodeName	the name of the node for which evidence is to be set
	outcome	the outcome, which must be in compliance with the node's domain

Exceptions:

Exception

if the node name does not exist in the network or the outcome is not valid for the node's domain

Definition at line 367 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::show ( String pluginDir ) [inline]

shows the Bayesian Network in a BNJ editor window, loading the BNJ plugins in the given directory

Parameters:

pluginDir

a directory containing BNJ plugins (jar files)

Definition at line 672 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::show ( ) [inline]

shows the Bayesian Network in an editor window (with support for standard IO plugins)

Definition at line 644 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::sortNodeDomain	(	String	nodeName,
		boolean	numeric
	)			throws Exception `[inline]`

sorts the domain of the node with the given name alphabetically (if numeric is false) or numerically (if numeric is true) - in ascending order

Parameters:

	nodeName	the name of the node whose domain is to be sorted
	numeric	whether to sort numerically or not. If numeric is true, all domain values are converted to double for sorting. If numeric is false, the values are simply sorted alphabetically.

Exceptions:

Exception

if the node name is invalid

Definition at line 602 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::walkCPT	(	CPTWalker	walker,
		CPF	cpf,
		int[]	addr,
		int	i
	)			`[inline, protected]`

Definition at line 1053 of file BeliefNetworkEx.java.

void edu::tum::cs::bayesnets::core::BeliefNetworkEx::walkCPT	(	BeliefNode	node,
		CPTWalker	walker
	)			`[inline]`

Definition at line 1042 of file BeliefNetworkEx.java.

Member Data Documentation

Map<String, Set<String> > edu::tum::cs::bayesnets::core::BeliefNetworkEx::attributeToNodeNameMapping = new HashMap<String, Set<String>>() [protected]

The inverse mapping of nodeNameToAttributeMapping.

Definition at line 91 of file BeliefNetworkEx.java.

BeliefNetwork edu::tum::cs::bayesnets::core::BeliefNetworkEx::bn

the BNJ BeliefNetwork object that is wrapped by the instance of class BeliefNetworkEx. When using BNJ directly, you may need this; or you may want to use the methods of BeliefNetwork to perform an operation on the network that BeliefNetworkEx does not wrap.

Definition at line 76 of file BeliefNetworkEx.java.

String edu::tum::cs::bayesnets::core::BeliefNetworkEx::filename [protected]

the name of the currently loaded belief network file

Definition at line 81 of file BeliefNetworkEx.java.

final Logger edu::tum::cs::bayesnets::core::BeliefNetworkEx::logger = Logger.getLogger(BeliefNetworkEx.class) [static, package]

The logger for this class.

Definition at line 60 of file BeliefNetworkEx.java.

final int edu::tum::cs::bayesnets::core::BeliefNetworkEx::MAX_TRIALS = 5000 [static]

The maximum number of unsuccessful trials for sampling. TODO: This should perhaps depend on the number of samples to be gathered?

Definition at line 69 of file BeliefNetworkEx.java.

Map<String, String> edu::tum::cs::bayesnets::core::BeliefNetworkEx::nodeNameToAttributeMapping = new HashMap<String, String>() [protected]

The mapping from attribute names to the node names of nodes that should get data from the attribute.

Definition at line 86 of file BeliefNetworkEx.java.

The documentation for this class was generated from the following file:

BeliefNetworkEx.java

edu::tum::cs::bayesnets::core::BeliefNetworkEx Class Reference

Classes

Public Member Functions

Static Public Member Functions

Public Attributes

Static Public Attributes

Protected Member Functions

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Protected Attributes

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Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation