/**
* Gets the input data and macro name and iterates over the example set while updating the current
* iteration in the given macro.
*/
@Override
public void doWork() throws OperatorException {
outExtender.reset();
ExampleSet exampleSet = exampleSetInput.getData(ExampleSet.class);
String iterationMacroName = getParameterAsString(PARAMETER_ITERATION_MACRO);
boolean innerSinkIsConnected = exampleSetInnerSink.isConnected();
for (iteration = 1; iteration <= exampleSet.size(); iteration++) {
getProcess().getMacroHandler().addMacro(iterationMacroName, String.valueOf(iteration));
// passing in clone or if connected the result from last iteration
exampleSetInnerSource.deliver(
innerSinkIsConnected ? exampleSet : (ExampleSet) exampleSet.clone());
getSubprocess(0).execute();
inApplyLoop();
if (innerSinkIsConnected) {
exampleSet = exampleSetInnerSink.getData(ExampleSet.class);
}
outExtender.collect();
}
getProcess().getMacroHandler().removeMacro(iterationMacroName);
exampleSetOutput.deliver(exampleSet);
}
/**
* Displays an error bubble that alerts the user that an input port of an operator expected input
* but did not receive any. The bubble is located at the port and the process view will change to
* said port. This method is used after the error occurred during process execution.
*
* @param port the port for which to display the error
* @return the {@link PortInfoBubble} instance, never {@code null}
*/
public static PortInfoBubble displayInputPortNoDataInformation(final Port port) {
if (port == null) {
throw new IllegalArgumentException("port must not be null!");
}
String key;
if (port.isConnected()) {
key = "process_mandatory_input_port_no_data";
} else {
// PortOwner is an interface only implemented from anonymous inner classes
// so check enclosing class and differentiate operator input ports and subprocess
// (result) input ports
if (ExecutionUnit.class.isAssignableFrom(
port.getPorts().getOwner().getClass().getEnclosingClass())) {
key = "process_mandatory_input_port_no_data_unconnected_inner";
} else {
key = "process_mandatory_input_port_no_data_unconnected";
}
}
String opName = "";
if (port instanceof InputPort) {
InputPort inPort = (InputPort) port;
OutputPort source = inPort.getSource();
if (source != null) {
// not the user entered name because that could be god knows how long
opName = source.getPorts().getOwner().getOperator().getOperatorDescription().getName();
}
}
return displayMissingInputPortInformation(port, !port.isConnected(), true, key, opName);
}
public void transformMetaData() {
List<Operator> sorted = topologicalSort();
for (Operator op : sorted) {
op.transformMetaData();
}
if (sorted.size() != operators.size()) {
List<Operator> remainder = new LinkedList<Operator>(operators);
remainder.removeAll(sorted);
for (Operator nodeInCircle : remainder) {
for (OutputPort outputPort : nodeInCircle.getOutputPorts().getAllPorts()) {
InputPort destination = outputPort.getDestination();
if ((destination != null)
&& remainder.contains(destination.getPorts().getOwner().getOperator())) {
if (destination.getSource() != null) {
// (source can be null *during* a disconnect in which case
// both the source and the destination fire an update
// which leads to this inconsistent state)
destination.addError(new OperatorLoopError(destination));
}
outputPort.addError(new OperatorLoopError(outputPort));
}
}
}
}
getInnerSinks().checkPreconditions();
}
/**
* Moves the operators from this process to another process, keeping all connections intact. TODO:
* Test more rigorously. Do we register/unregister everything correctly?
*
* @return the number of ports the connections of which could not be restored
*/
public int stealOperatorsFrom(ExecutionUnit otherUnit) {
int failedReconnects = 0;
// remember source and sink connections so we can reconnect them later.
Map<String, InputPort> sourceMap = new HashMap<String, InputPort>();
Map<String, OutputPort> sinkMap = new HashMap<String, OutputPort>();
for (OutputPort source : otherUnit.getInnerSources().getAllPorts()) {
if (source.isConnected()) {
sourceMap.put(source.getName(), source.getDestination());
}
}
otherUnit.getInnerSources().disconnectAll();
for (InputPort sink : otherUnit.getInnerSinks().getAllPorts()) {
if (sink.isConnected()) {
sinkMap.put(sink.getName(), sink.getSource());
}
}
otherUnit.getInnerSinks().disconnectAll();
// Move operators
Iterator<Operator> i = otherUnit.operators.iterator();
while (i.hasNext()) {
Operator operator = i.next();
i.remove();
otherUnit.unregister(operator);
Process otherProcess = operator.getProcess();
if (otherProcess != null) {
operator.unregisterOperator(otherProcess);
}
this.operators.add(operator);
operator.setEnclosingProcess(null);
// operator.unregisterOperator(operator.getProcess());
registerOperator(operator, true);
// operator.registerOperator(this.getEnclosingOperator().getProcess());
}
// Rewire sources and sinks
for (Map.Entry<String, InputPort> entry : sourceMap.entrySet()) {
OutputPort mySource = getInnerSources().getPortByName(entry.getKey());
if (mySource != null) {
mySource.connectTo(entry.getValue());
} else {
failedReconnects++;
}
}
getInnerSources().unlockPortExtenders();
for (Map.Entry<String, OutputPort> entry : sinkMap.entrySet()) {
InputPort mySink = getInnerSinks().getPortByName(entry.getKey());
if (mySink != null) {
entry.getValue().connectTo(mySink);
} else {
failedReconnects++;
}
}
getInnerSinks().unlockPortExtenders();
fireUpdate(this);
return failedReconnects;
}
@Override
protected void performAdditionalChecks() {
super.performAdditionalChecks();
try {
InputPort referenceDataPort = getInputPorts().getPortByName(REFERENCE_DATA_PORT_NAME);
String orderMode = getParameterAsString(PARAMETER_ORDER_MODE);
if (orderMode.equals(REFERENCE_DATA) && !referenceDataPort.isConnected()) {
addError(
new SimpleMetaDataError(
Severity.ERROR, referenceDataPort, "input_missing", REFERENCE_DATA_PORT_NAME));
}
if (!orderMode.equals(REFERENCE_DATA) && referenceDataPort.isConnected()) {
addError(
new SimpleMetaDataError(
Severity.WARNING,
referenceDataPort,
"port_connected_but_parameter_not_set",
REFERENCE_DATA_PORT_NAME,
PARAMETER_ORDER_MODE,
orderMode));
}
} catch (UndefinedParameterError e) {
// nothing to do here
}
}
public void readModel(int n, int k, double[][] points, int[] weight, DistanceMeasure measure)
throws OperatorException {
if (modelInput.isConnected()) {
KNNCollectionModel input;
input = modelInput.getData(KNNCollectionModel.class);
knnCollection = input.get();
newCollection = false;
if (k > knnCollection.getK()
|| !Arrays.deepEquals(knnCollection.getPoints(), points)
|| !measure.getClass().toString().equals(input.measure.getClass().toString())) {
if (k > knnCollection.getK()) {
this.logNote("Model at input port can not be used (k too small).");
} else {
this.logNote("Model at input port can not be used (Model andExampleSet not matching).");
}
knnCollection = new KNNCollection(n, k, points, weight);
newCollection = true;
} else {
this.logNote(" Model at input port used for speeding up the operator.");
}
if (k < knnCollection.getK()) {
knnCollection = KNNCollection.clone(knnCollection);
knnCollection.shrink(knnCollection.getK() - k);
}
} else {
knnCollection = new KNNCollection(n, k, points, weight);
newCollection = true;
}
}
@Override
public void doWork() throws OperatorException {
ExampleSet originalExampleSet = exampleSetInput.getData(ExampleSet.class);
double fraction = getParameterAsDouble(PARAMETER_FRACTION);
if (fraction < 0 || fraction > 1.0)
throw new UserError(
this,
207,
new Object[] {
fraction, "fraction", "Cannot use fractions of less than 0.0 or more than 1.0"
});
SplittedExampleSet splitted =
new SplittedExampleSet(
originalExampleSet,
fraction,
getParameterAsInt(PARAMETER_SAMPLING_TYPE),
getParameterAsBoolean(RandomGenerator.PARAMETER_USE_LOCAL_RANDOM_SEED),
getParameterAsInt(RandomGenerator.PARAMETER_LOCAL_RANDOM_SEED));
splitted.selectSingleSubset(0);
exampleSubsetInnerSource.deliver(splitted);
getSubprocess(0).execute();
modelOutput.deliver(modelInnerSink.getData(IOObject.class));
}
@Override
public void doWork() throws OperatorException {
// WhiBoCentroidClusterModel ccm = clusterModelInput.getData();
ClusterModel ccm = clusterModelInput.getData();
int size = 0;
// ExampleSet exampleSet = getInput(ExampleSet.class);
ExampleSet exampleSet = exampleSetInput.getData();
// getValidations(ccm, exampleSet);
validationOutput.deliver(getValidations(ccm, exampleSet));
}
@Override
public void doWork() throws OperatorException {
AlignmentAnalyzerParametersImpl params;
try {
params = parseParameters();
} catch (IOException e) {
throw new OperatorException(e.getMessage());
}
PluginContext context =
ProMPluginContextManager.instance()
.getFutureResultAwareContext(AlignmentAPNAnalyzerPlugin.class);
XSEventStream stream = getStreamPort().getData(XSEventStreamIOObject.class).getArtifact();
XLogArray arr = new XLogArray();
for (InputPort i : referenceLogsPort.getManagedPorts()) {
try {
arr.add(i.getData(XLogIOObject.class).getArtifact());
} catch (UserError e) {
}
}
// TODO: use meta-data to process classifiers!
List<XEventClassifier> classifiers = fetchClassifiers(arr);
params.setClassifier(classifiers.get(0));
List<XSEventStreamToAcceptingPetriNetReader> algos =
new ArrayList<XSEventStreamToAcceptingPetriNetReader>();
for (InputPort i : getAlgorithmsPort().getManagedPorts()) {
try {
algos.add(
(XSEventStreamToAcceptingPetriNetReader)
i.getData(XSEventStreamToAcceptingPetriNetReaderIOObject.class).getArtifact());
} catch (UserError e) {
}
}
XSStreamAnalyzer<
XSEvent,
Map<XSReader<XSEvent, AcceptingPetriNet>, Map<Long, Iterable<Iterable<Double>>>>,
AcceptingPetriNet>
analyzer =
AlignmentAPNAnalyzerPlugin.run(
context,
stream,
arr,
params,
algos.toArray(new XSEventStreamToAcceptingPetriNetReader[algos.size()]));
getAnalyzerPort()
.deliver(
new XSStreamAnalyzerIOObject<
XSEvent,
Map<XSReader<XSEvent, AcceptingPetriNet>, Map<Long, Iterable<Iterable<Double>>>>,
AcceptingPetriNet>(analyzer, context));
}
@Override
public void doWork() throws OperatorException {
Model model = modelInput.getData(Model.class);
if (!(model instanceof KernelModel)) {
throw new UserError(this, 122, "'support vector based model (kernel model)'");
}
PerformanceVector inputPerformance = performanceInput.getDataOrNull(PerformanceVector.class);
PerformanceVector performance = count((KernelModel) model, inputPerformance);
modelOutput.deliver(model);
performanceOutput.deliver(performance);
}
@Override
public void doWork() throws OperatorException {
CentroidClusterModel model = modelInput.getData(CentroidClusterModel.class);
Attributes trainAttributes = model.getTrainingHeader().getAttributes();
String[] attributeNames = model.getAttributeNames();
Attribute[] attributes = new Attribute[attributeNames.length + 1];
for (int i = 0; i < attributeNames.length; i++) {
Attribute originalAttribute = trainAttributes.get(attributeNames[i]);
attributes[i] =
AttributeFactory.createAttribute(attributeNames[i], originalAttribute.getValueType());
if (originalAttribute.isNominal()) {
attributes[i].setMapping((NominalMapping) originalAttribute.getMapping().clone());
}
}
Attribute clusterAttribute = AttributeFactory.createAttribute("cluster", Ontology.NOMINAL);
attributes[attributes.length - 1] = clusterAttribute;
MemoryExampleTable table = new MemoryExampleTable(attributes);
for (int i = 0; i < model.getNumberOfClusters(); i++) {
double[] data = new double[attributeNames.length + 1];
System.arraycopy(model.getCentroidCoordinates(i), 0, data, 0, attributeNames.length);
data[attributeNames.length] = clusterAttribute.getMapping().mapString("cluster_" + i);
table.addDataRow(new DoubleArrayDataRow(data));
}
ExampleSet resultSet = table.createExampleSet();
resultSet.getAttributes().setSpecialAttribute(clusterAttribute, Attributes.CLUSTER_NAME);
modelOutput.deliver(model);
exampleSetOutput.deliver(resultSet);
}
/** Constructor */
public RandomO(OperatorDescription description) {
super(description);
exampleSetInput.addPrecondition(
new ExampleSetPrecondition(
exampleSetInput, "user identification", Ontology.ATTRIBUTE_VALUE));
exampleSetInput.addPrecondition(
new ExampleSetPrecondition(
exampleSetInput, "item identification", Ontology.ATTRIBUTE_VALUE));
getTransformer()
.addRule(
new ExampleSetPassThroughRule(exampleSetInput, exampleSetOutput, SetRelation.EQUAL) {});
getTransformer()
.addRule(new GenerateNewMDRule(exampleSetOutput1, new MetaData(ItemRecommender.class)) {});
}
@Override
public void transformMD() {
for (InputPort inputPort : inputPorts) {
MetaData metaData = inputPort.getMetaData();
if (metaData != null) {
if (metaData instanceof CollectionMetaData) {
metaData = ((CollectionMetaData) metaData).getElementMetaDataRecursive();
}
metaData = metaData.clone();
metaData.addToHistory(outputPort);
outputPort.deliverMD(modifyMetaData(metaData));
return;
}
}
outputPort.deliverMD(null);
}
/** @see com.rapidminer.operator.OperatorChain#doWork() */
@Override
public void doWork() throws OperatorException {
List<Operator> nested = this.getImmediateChildren();
log.info("This StreamProcess has {} nested operators", nested.size());
for (Operator op : nested) {
log.info(" op: {}", op);
if (op instanceof DataStreamOperator) {
log.info("Resetting stream-operator {}", op);
((DataStreamOperator) op).reset();
}
}
log.info("Starting some work in doWork()");
ExampleSet exampleSet = input.getData(ExampleSet.class);
log.info("input is an example set with {} examples", exampleSet.size());
int i = 0;
Iterator<Example> it = exampleSet.iterator();
while (it.hasNext()) {
Example example = it.next();
log.info("Processing example {}", i);
DataObject datum = StreamUtils.wrap(example);
log.info("Wrapped data-object is: {}", datum);
dataStream.deliver(datum);
getSubprocess(0).execute();
inApplyLoop();
i++;
}
// super.doWork();
log.info("doWork() is finished.");
}
@Override
public final void doWork() throws OperatorException {
ExampleSet inputExampleSet = exampleSetInput.getData(ExampleSet.class);
ExampleSet applySet = null;
// check for needed copy of original exampleset
if (originalOutput.isConnected() && writesIntoExistingData()) {
int type = DataRowFactory.TYPE_DOUBLE_ARRAY;
if (inputExampleSet.getExampleTable() instanceof MemoryExampleTable) {
DataRowReader dataRowReader = inputExampleSet.getExampleTable().getDataRowReader();
if (dataRowReader.hasNext()) {
type = dataRowReader.next().getType();
}
}
// check if type is supported to be copied
if (type >= 0) {
applySet = MaterializeDataInMemory.materializeExampleSet(inputExampleSet, type);
}
}
if (applySet == null) applySet = (ExampleSet) inputExampleSet.clone();
// we apply on the materialized data, because writing can't take place in views anyway.
ExampleSet result = apply(applySet);
originalOutput.deliver(inputExampleSet);
exampleSetOutput.deliver(result);
}
/** Trains a model using an ExampleSet from the input. Uses the method learn(ExampleSet). */
@Override
public void doWork() throws OperatorException {
ExampleSet exampleSet = exampleSetInput.getData(ExampleSet.class);
// some checks
if (exampleSet.getAttributes().getLabel() == null) {
throw new UserError(this, 105, new Object[0]);
}
if (exampleSet.getAttributes().size() == 0) {
throw new UserError(this, 106, new Object[0]);
}
// check capabilities and produce errors if they are not fulfilled
CapabilityCheck check =
new CapabilityCheck(
this,
Tools.booleanValue(
ParameterService.getParameterValue(
CapabilityProvider.PROPERTY_RAPIDMINER_GENERAL_CAPABILITIES_WARN),
true));
check.checkLearnerCapabilities(this, exampleSet);
Model model = learn(exampleSet);
modelOutput.deliver(model);
exampleSetOutput.deliver(exampleSet);
}
private PerformanceVector getPerformance(ExampleSet exampleSet)
throws OperatorException, MissingIOObjectException {
innerExampleSetSource.deliver(exampleSet);
getSubprocess(0).execute();
return innerPerformanceSink.getData(PerformanceVector.class);
}
@SuppressWarnings("deprecation")
private void autoWire(
CompatibilityLevel level, InputPorts inputPorts, LinkedList<OutputPort> readyOutputs)
throws PortException {
boolean success = false;
do {
Set<InputPort> complete = new HashSet<InputPort>();
for (InputPort in : inputPorts.getAllPorts()) {
success = false;
if (!in.isConnected()
&& !complete.contains(in)
&& in.getPorts().getOwner().getOperator().shouldAutoConnect(in)) {
Iterator<OutputPort> outIterator;
// TODO: Simon: Does the same in both cases. Check again.
if (in.simulatesStack()) {
outIterator = readyOutputs.descendingIterator();
} else {
outIterator = readyOutputs.descendingIterator();
}
while (outIterator.hasNext()) {
OutputPort outCandidate = outIterator.next();
// TODO: Remove shouldAutoConnect() in later versions
Operator owner = outCandidate.getPorts().getOwner().getOperator();
if (owner.shouldAutoConnect(outCandidate)) {
if (outCandidate.getMetaData() != null) {
if (in.isInputCompatible(outCandidate.getMetaData(), level)) {
readyOutputs.remove(outCandidate);
outCandidate.connectTo(in);
// we cannot continue with the remaining input ports
// since connecting may have triggered the creation of new input ports
// which would result in undefined behavior and a ConcurrentModificationException
success = true;
break;
}
}
}
}
// no port found.
complete.add(in);
if (success) {
break;
}
}
}
} while (success);
}
@Override
public MetaData getMetaData() {
if (inPort != null) {
return inPort.getMetaData();
} else {
return null;
}
}
public ExampleSetMinus(OperatorDescription description) {
super(description);
subtrahendInput.addPrecondition(
new ExampleSetPrecondition(subtrahendInput, Ontology.ATTRIBUTE_VALUE, Attributes.ID_NAME));
getExampleSetInputPort()
.addPrecondition(
new ExampleSetPrecondition(
getExampleSetInputPort(), Ontology.ATTRIBUTE_VALUE, Attributes.ID_NAME));
}
@Override
public ExampleSet apply(ExampleSet exampleSet) throws OperatorException {
// recall: difference = minuend - subtrahend
// but the subtrahend is last on the ioobjects stack, so pop first
ExampleSet subtrahendSet = subtrahendInput.getData(ExampleSet.class);
ExampleSet minuendSet = exampleSet;
subtrahendSet.remapIds();
minuendSet.remapIds();
Attribute minuendId = minuendSet.getAttributes().getId();
Attribute subtrahendId = subtrahendSet.getAttributes().getId();
// sanity checks
if ((minuendId == null) || (subtrahendId == null)) {
throw new UserError(this, 129);
}
if (minuendId.getValueType() != subtrahendId.getValueType()) {
throw new UserError(
this,
120,
new Object[] {
subtrahendId.getName(),
Ontology.VALUE_TYPE_NAMES[subtrahendId.getValueType()],
Ontology.VALUE_TYPE_NAMES[minuendId.getValueType()]
});
}
List<Integer> indices = new LinkedList<>();
{
int i = 0;
for (Example example : minuendSet) {
double id = example.getValue(minuendId);
Example subtrahendExample = null;
if (minuendId.isNominal()) {
subtrahendExample =
subtrahendSet.getExampleFromId(
subtrahendId.getMapping().getIndex(minuendId.getMapping().mapIndex((int) id)));
} else {
subtrahendExample = subtrahendSet.getExampleFromId(id);
}
if (subtrahendExample == null) {
indices.add(i);
}
i++;
}
}
int[] indexArray = new int[indices.size()];
for (int i = 0; i < indices.size(); i++) {
indexArray[i] = indices.get(i);
}
ExampleSet minusSet = new MappedExampleSet(minuendSet, indexArray);
return minusSet;
}
@Override
public void doWork() throws OperatorException {
ExampleSet exampleSet = exampleSetInput.getData();
IEntityMapping user_mapping = new EntityMapping();
IEntityMapping item_mapping = new EntityMapping();
IRatings training_data = new Ratings();
if (exampleSet.getAttributes().getSpecial("user identification") == null) {
throw new UserError(this, 105);
}
if (exampleSet.getAttributes().getSpecial("item identification") == null) {
throw new UserError(this, 105);
}
if (exampleSet.getAttributes().getLabel() == null) {
throw new UserError(this, 105);
}
Attributes Att = exampleSet.getAttributes();
AttributeRole ur = Att.getRole("user identification");
Attribute u = ur.getAttribute();
AttributeRole ir = Att.getRole("item identification");
Attribute i = ir.getAttribute();
Attribute ui = Att.getLabel();
for (Example example : exampleSet) {
double j = example.getValue(u);
int uid = user_mapping.ToInternalID((int) j);
j = example.getValue(i);
int iid = item_mapping.ToInternalID((int) j);
double r = example.getValue(ui);
training_data.Add(uid, iid, r);
}
_slopeOne recommendAlg = new _slopeOne();
recommendAlg.user_mapping = user_mapping;
recommendAlg.item_mapping = item_mapping;
recommendAlg.SetMinRating(getParameterAsInt("Min Rating"));
recommendAlg.SetMaxRating(recommendAlg.GetMinRating() + getParameterAsInt("Range"));
recommendAlg.SetRatings(training_data);
recommendAlg.Train();
exampleSetOutput.deliver(exampleSet);
exampleSetOutput1.deliver(recommendAlg);
}
public CostEvaluator(OperatorDescription description) {
super(description);
exampleSetInput.addPrecondition(
new ExampleSetPrecondition(
exampleSetInput, Ontology.ATTRIBUTE_VALUE, Attributes.LABEL_NAME));
exampleSetInput.addPrecondition(
new ExampleSetPrecondition(
exampleSetInput, Ontology.ATTRIBUTE_VALUE, Attributes.PREDICTION_NAME));
getTransformer().addGenerationRule(performanceOutput, PerformanceVector.class);
getTransformer().addPassThroughRule(exampleSetInput, exampleSetOutput);
addValue(
new ValueDouble("costs", "The last costs.") {
@Override
public double getDoubleValue() {
return lastCosts;
}
});
}
/**
* Sorts the operators topologically, i.e. such that operator <var>i</var> in the returned
* ordering has dependencies (i.e. connected {@link InputPort}s) only from operators
* <var>0..i-1</var>.
*/
public Vector<Operator> topologicalSort() {
final Map<Operator, Integer> originalIndices = new HashMap<Operator, Integer>();
for (int i = 0; i < operators.size(); i++) {
originalIndices.put(operators.get(i), i);
}
EdgeCounter counter = new EdgeCounter(operators);
for (Operator child : getOperators()) {
for (OutputPort out : child.getOutputPorts().getAllPorts()) {
InputPort dest = out.getDestination();
if (dest != null) {
counter.incNumEdges(dest.getPorts().getOwner().getOperator());
}
}
}
Vector<Operator> sorted = new Vector<Operator>();
PriorityQueue<Operator> independentOperators =
new PriorityQueue<Operator>(
Math.max(1, operators.size()),
new Comparator<Operator>() {
@Override
public int compare(Operator o1, Operator o2) {
return originalIndices.get(o1) - originalIndices.get(o2);
}
});
independentOperators.addAll(counter.getIndependentOperators());
while (!independentOperators.isEmpty()) {
Operator first = independentOperators.poll();
sorted.add(first);
for (OutputPort out : first.getOutputPorts().getAllPorts()) {
InputPort dest = out.getDestination();
if (dest != null) {
Operator destOp = dest.getPorts().getOwner().getOperator();
if (counter.decNumEdges(destOp) == 0) {
// independentOperators.addFirst(destOp);
independentOperators.add(destOp);
}
}
}
}
return sorted;
}
@Override
public void doWork() throws OperatorException {
// retrieve document
Document input = documentInput.getData(Document.class);
// encrypt/decrypt text
String text = transformText(configureEncryptor(), getText(input));
// deliver transformed document
documentOut.deliver(new Document(text));
}
public ValueSubgroupIteration(OperatorDescription description) {
super(description, "Subset Processing");
exampleSetInput.addPrecondition(
new AttributeSetPrecondition(
exampleSetInput,
new AttributeNameProvider() {
@Override
public String[] getRequiredAttributeNames() {
try {
List<String[]> attributeValueOptions;
attributeValueOptions = getParameterList(PARAMETER_ATTRIBUTES);
String[] groupAttributes = new String[attributeValueOptions.size()];
int i = 0;
for (String[] pair : attributeValueOptions) {
groupAttributes[i] = pair[0];
i++;
}
return groupAttributes;
} catch (UndefinedParameterError e) {
return new String[0];
}
}
}));
getTransformer()
.addRule(
new ExampleSetPassThroughRule(
exampleSetInput, innerExampleSetSource, SetRelation.SUPERSET) {
@Override
public ExampleSetMetaData modifyExampleSet(ExampleSetMetaData emd)
throws UndefinedParameterError {
emd.getNumberOfExamples().reduceByUnknownAmount();
if (getParameterAsBoolean(PARAMETER_FILTER_ATTRIBUTE)) {
List<String[]> attributeValueOptions;
attributeValueOptions = getParameterList(PARAMETER_ATTRIBUTES);
String[] groupAttributes = new String[attributeValueOptions.size()];
int i = 0;
for (String[] pair : attributeValueOptions) {
groupAttributes[i] = pair[0];
i++;
}
for (String name : groupAttributes) {
AttributeMetaData amd = emd.getAttributeByName(name);
if (amd != null) emd.removeAttribute(emd.getAttributeByName(name));
}
}
return emd;
}
});
getTransformer().addRule(new SubprocessTransformRule(getSubprocess(0)));
}
public ThresholdFinder(OperatorDescription description) {
super(description);
exampleSetInput.addPrecondition(
new ExampleSetPrecondition(
exampleSetInput,
Ontology.VALUE_TYPE,
Attributes.LABEL_NAME,
Attributes.PREDICTION_NAME,
Attributes.CONFIDENCE_NAME));
getTransformer().addPassThroughRule(exampleSetInput, exampleSetOutput);
getTransformer().addGenerationRule(thresholdOutput, Threshold.class);
}
@Override
public void doWork() throws OperatorException {
ExampleSet exampleSet = exampleSetInput.getData(ExampleSet.class);
// only use numeric attributes
Tools.onlyNumericalAttributes(exampleSet, "KernelPCA");
Tools.onlyNonMissingValues(exampleSet, getOperatorClassName(), this);
Attributes attributes = exampleSet.getAttributes();
int numberOfExamples = exampleSet.size();
// calculating means for later zero centering
exampleSet.recalculateAllAttributeStatistics();
double[] means = new double[exampleSet.getAttributes().size()];
int i = 0;
for (Attribute attribute : exampleSet.getAttributes()) {
means[i] = exampleSet.getStatistics(attribute, Statistics.AVERAGE);
i++;
}
// kernel
Kernel kernel = Kernel.createKernel(this);
// copying zero centered exampleValues
ArrayList<double[]> exampleValues = new ArrayList<double[]>(numberOfExamples);
i = 0;
for (Example columnExample : exampleSet) {
double[] columnValues = getAttributeValues(columnExample, attributes, means);
exampleValues.add(columnValues);
i++;
}
// filling kernel matrix
Matrix kernelMatrix = new Matrix(numberOfExamples, numberOfExamples);
for (i = 0; i < numberOfExamples; i++) {
for (int j = 0; j < numberOfExamples; j++) {
kernelMatrix.set(
i, j, kernel.calculateDistance(exampleValues.get(i), exampleValues.get(j)));
}
}
// calculating eigenVectors
EigenvalueDecomposition eig = kernelMatrix.eig();
Model model = new KernelPCAModel(exampleSet, means, eig.getV(), exampleValues, kernel);
if (exampleSetOutput.isConnected()) {
exampleSetOutput.deliver(model.apply(exampleSet));
}
originalOutput.deliver(exampleSet);
modelOutput.deliver(model);
}
@Override
public void apply() {
try {
Operator oldOperator = inputPort.getPorts().getOwner().getOperator();
Operator newOperator =
NewOperatorDialog.selectMatchingOperator(
RapidMinerGUI.getMainFrame().getActions(), null, neededClass, null, null);
if (newOperator != null) {
ExecutionUnit unit = inputPort.getPorts().getOwner().getConnectionContext();
int index = unit.getIndexOfOperator(oldOperator);
if (index == -1) {
unit.addOperator(newOperator);
} else {
unit.addOperator(newOperator, unit.getIndexOfOperator(oldOperator));
}
if (RapidMinerGUI.getMainFrame().VALIDATE_AUTOMATICALLY_ACTION.isSelected()) {
unit.autoWireSingle(newOperator, CompatibilityLevel.VERSION_5, true, true);
}
}
} catch (OperatorCreationException e) {
}
}
@Override
public void doWork() throws OperatorException {
ExampleSet exampleSet = exampleSetInput.getData(ExampleSet.class);
// needed for some measures
Tools.checkAndCreateIds(exampleSet);
DistanceMeasure measure = measureHelper.getInitializedMeasure(exampleSet);
SimilarityMeasureObject measureObject = new SimilarityMeasureObject(measure, exampleSet);
ObjectVisualizerService.addObjectVisualizer(measureObject, new ExampleVisualizer(exampleSet));
similarityOutput.deliver(measureObject);
exampleSetOutput.deliver(exampleSet);
}