org.licas.ai_solver.mediator.problem

Class SomProblemMediator

java.lang.Object

org.licas.service.spec.ServiceSpec

org.licas.ai_solver.mediator.problem.ProblemMediator

org.licas.ai_solver.mediator.problem.ProblemMediatorCentral

org.licas.ai_solver.mediator.problem.SomProblemMediator

All Implemented Interfaces:

ProblemMediatorDef

public class SomProblemMediator
extends ProblemMediatorCentral

This class models the problem to be solved based on a centralised SOM neural network. This version receives a single input dataset that it then clusters, without solution updates. It receives its dataset from a single service and suggests links through optimising its self-organising map.

Field Summary

Fields

Modifier and Type	Field and Description
protected SomConfig	somConfig Configuration values specific to the SOM neural network
protected SomNN	somNN The SOM neural network
protected java.util.ArrayList<java.lang.Double>	weights Set of existing weights, maybe from a previous test run

Fields inherited from class org.licas.ai_solver.mediator.problem.ProblemMediatorCentral

dataHash, serviceNames, solutionHierarc

Fields inherited from class org.licas.ai_solver.mediator.problem.ProblemMediator

bestResult, fullTrace, problem, result, solutionOrder, solutionSet, solutionsNumber, solverType, testEnded

Fields inherited from class org.licas.service.spec.ServiceSpec

constructorParams, createServices, dataConditions, datasetType, dirPath, externalScript, heuristicOptions, heuristicType, inputVariables, linkSpec, metricType, serverSpec, serviceClasses, serviceJarFiles, servicesNum, serviceType, tokenizer

Constructor Summary

Constructors

Constructor and Description
SomProblemMediator(org.licas.PasswordHandler thePasswordHandler) Create a new instance of SomProblemMediator.

Method Summary

Modifier and Type	Method and Description
void	copyToConfig(TestSpec testSpec) Copy any related values to the som config structure.
protected void	createSomData(TestSpec testSpec, java.lang.String separator) Create a new som with the problem datasets.
org.licas_xml.abs.Element	getResultXml() Get the results of the test.
boolean	resetForNextRun(java.util.HashMap<java.lang.String,?> varList) Reset the problem-solving structures for the next run.
Result	solve(TestSpec testSpec) Optimise the solutions using the appropriate framework.

Methods inherited from class org.licas.ai_solver.mediator.problem.ProblemMediatorCentral

createStoreData, getProblemsList, getSolutionHierarchy, hasSolutions, readData, resetValues

Methods inherited from class org.licas.ai_solver.mediator.problem.ProblemMediator

addHeuristicOption, clearHeuristicOptions, getFullTrace, getHeuristicOptions, getHeuristicType, getProblem, getProblemNames, getSolutionSet, getSolutionsNumber, getTestEnded, processResult, setDatasetType, setFullTrace, setHeuristicOptions, setHeuristicType, setProblem, setSolutionSet, setSolutionsNumber

Methods inherited from class org.licas.service.spec.ServiceSpec

getDatasetType, getDirFolder, getTokenizer, parseProblemDataset, setDirFolder, setTokenizer, validateScript, validateVariable

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

somConfig

protected SomConfig somConfig

Configuration values specific to the SOM neural network

somNN

protected SomNN somNN

The SOM neural network

weights

protected java.util.ArrayList<java.lang.Double> weights

Set of existing weights, maybe from a previous test run

Constructor Detail

SomProblemMediator

public SomProblemMediator(org.licas.PasswordHandler thePasswordHandler)

Create a new instance of SomProblemMediator.

Parameters:

thePasswordHandler - for storing passwords.

Method Detail

copyToConfig

public void copyToConfig(TestSpec testSpec)
                  throws java.lang.Exception

Copy any related values to the som config structure.

Specified by:

copyToConfig in interface ProblemMediatorDef

Overrides:

copyToConfig in class ProblemMediator

Parameters:

testSpec - the model of the tests to perform.

Throws:

java.lang.Exception - any error.

solve

public Result solve(TestSpec testSpec)
             throws java.lang.Exception

Optimise the solutions using the appropriate framework.

Parameters:

testSpec - the model of the tests to perform.

Returns:

clusters of solutions or references from the latest optimisation phase.

Throws:

java.lang.Exception - any error.

resetForNextRun

public boolean resetForNextRun(java.util.HashMap<java.lang.String,?> varList)
                        throws java.lang.Exception

Reset the problem-solving structures for the next run. In this case, remove the named solutions from the list of current ones.

Specified by:

resetForNextRun in class ProblemMediator

Parameters:

varList - a list of variables as key-value pairs. Can be null in this case.

Returns:

true if all are removed, false otherwise.

Throws:

java.lang.Exception - any error.

createSomData

protected void createSomData(TestSpec testSpec,
                             java.lang.String separator)
                      throws java.lang.Exception

Create a new som with the problem datasets. Assumes a single file path for a dataset to load. Also assumes CSV ','-style separator in the file.

Parameters:

testSpec - the model of the tests to perform.

separator - the tokenizer character.

Throws:

java.lang.Exception - any error.

getResultXml

public org.licas_xml.abs.Element getResultXml()
                                       throws java.lang.Exception

Get the results of the test.

Returns:

the test results in XML format.

Throws:

java.lang.Exception - any error.