private RunTrace traceToXML(int file_id, int task_id, int run_id) throws Exception {
RunTrace trace = new RunTrace(run_id);
URL traceURL = apiconnector.getOpenmlFileUrl(file_id, "Task_" + task_id + "_trace.arff");
Instances traceDataset = new Instances(new BufferedReader(Input.getURL(traceURL)));
List<Integer> parameterIndexes = new ArrayList<Integer>();
if (traceDataset.attribute("repeat") == null
|| traceDataset.attribute("fold") == null
|| traceDataset.attribute("iteration") == null
|| traceDataset.attribute("evaluation") == null
|| traceDataset.attribute("selected") == null) {
throw new Exception("trace file missing mandatory attributes. ");
}
for (int i = 0; i < traceDataset.numAttributes(); ++i) {
if (traceDataset.attribute(i).name().startsWith("parameter_")) {
parameterIndexes.add(i);
}
}
if (parameterIndexes.size() == 0) {
throw new Exception(
"trace file contains no fields with prefix 'parameter_' (i.e., parameters are not registered). ");
}
if (traceDataset.numAttributes() > 6 + parameterIndexes.size()) {
throw new Exception(
"trace file contains illegal attributes (only allow for repeat, fold, iteration, evaluation, selected, setup_string and parameter_*). ");
}
for (int i = 0; i < traceDataset.numInstances(); ++i) {
Instance current = traceDataset.get(i);
Integer repeat = (int) current.value(traceDataset.attribute("repeat").index());
Integer fold = (int) current.value(traceDataset.attribute("fold").index());
Integer iteration = (int) current.value(traceDataset.attribute("iteration").index());
Double evaluation = current.value(traceDataset.attribute("evaluation").index());
Boolean selected =
current.stringValue(traceDataset.attribute("selected").index()).equals("true");
Map<String, String> parameters = new HashMap<String, String>();
for (int j = 0; j < parameterIndexes.size(); ++j) {
int attIdx = parameterIndexes.get(j);
if (traceDataset.attribute(attIdx).isNumeric()) {
parameters.put(traceDataset.attribute(attIdx).name(), current.value(attIdx) + "");
} else {
parameters.put(traceDataset.attribute(attIdx).name(), current.stringValue(attIdx));
}
}
String setup_string = new JSONObject(parameters).toString();
trace.addIteration(
new RunTrace.Trace_iteration(
repeat, fold, iteration, setup_string, evaluation, selected));
}
return trace;
}
/**
* Parses a given list of options.
*
* <pre>
* -T <task_id>
* The OpenML task to run the experiment on. (required)
* </pre>
*
* <pre>
* -C <class name>
* The full class name of the classifier.
* eg: weka.classifiers.bayes.NaiveBayes
* </pre>
*
* <!-- options-end -->
* All options after -- will be passed to the classifier.
*
* <p>
*
* @param options the list of options as an array of strings
* @throws Exception if an option is not supported
*/
public void setOptions(String[] options) throws Exception {
Integer task_id = Integer.parseInt(Utils.getOption('T', options));
String classifierName = Utils.getOption('C', options);
String[] classifierOptions = Utils.partitionOptions(options);
DefaultListModel<Task> tasks = new DefaultListModel<Task>();
tasks.add(0, apiconnector.taskGet(task_id));
setTasks(tasks);
Classifier[] cArray = new Classifier[1];
try {
cArray[0] = (Classifier) Utils.forName(Classifier.class, classifierName, classifierOptions);
} catch (Exception e) {
// Try again, this time loading packages first
weka.core.WekaPackageManager.loadPackages(false);
cArray[0] = (Classifier) Utils.forName(Classifier.class, classifierName, classifierOptions);
}
setPropertyArray(cArray);
}
public Integer getRunId(boolean random) throws Exception {
String sql =
"SELECT `rid`,`start_time`,`processed`,`error` "
+ "FROM `run` WHERE `processed` IS NULL AND `error` IS NULL AND error_message IS NULL "
+ "ORDER BY `start_time` ASC LIMIT 0, 100; ";
JSONArray runJson = (JSONArray) apiconnector.freeQuery(sql).get("data");
int randomint = 0;
if (random) {
Random r = new Random();
randomint = Math.abs(r.nextInt());
}
if (runJson.length() > 0) {
int run_id = ((JSONArray) runJson.get(randomint % runJson.length())).getInt(0);
return run_id;
} else {
return null;
}
}
public InstanceBased(OpenmlConnector openml, List<Integer> run_ids, Integer task_id)
throws Exception {
this.run_ids = run_ids;
this.openml = openml;
this.predictions =
new HashMap<Integer, Map<Integer, Map<Integer, Map<Integer, Map<Integer, String>>>>>();
this.runs = new HashMap<Integer, Run>();
this.task_id = task_id;
Task currentTask = openml.taskGet(task_id);
if (currentTask.getTask_type().equals("Supervised Classification") == false
&& currentTask.getTask_type().equals("Supervised Data Stream Classification")
== false) { // TODO: no string based comp.
throw new RuntimeException(
"Experimental function, only works with 'Supervised Classification' tasks for now (ttid / 1)");
}
DataSetDescription dsd =
openml.dataGet(TaskInformation.getSourceData(currentTask).getData_set_id());
dataset =
new Instances(
new BufferedReader(
Input.getURL(openml.getOpenmlFileUrl(dsd.getFile_id(), dsd.getName()))));
if (currentTask.getTask_type().equals("Supervised Data Stream Classification")) {
// simulate task splits file.
int numberOfInstances = dataset.numInstances();
ArrayList<Attribute> attributes = new ArrayList<Attribute>();
List<String> typeValues = new ArrayList<String>();
typeValues.add("TEST");
attributes.add(new Attribute("repeat"));
attributes.add(new Attribute("fold"));
attributes.add(new Attribute("rowid"));
attributes.add(new Attribute("type", typeValues)); // don't need train
task_splits =
new Instances("task" + task_id + "splits-simulated", attributes, numberOfInstances);
for (int i = 0; i < numberOfInstances; ++i) {
double[] attValues = {0, 0, i, 0};
task_splits.add(new DenseInstance(1.0, attValues));
}
} else {
URL taskUrl =
new URL(TaskInformation.getEstimationProcedure(currentTask).getData_splits_url());
task_splits = new Instances(new BufferedReader(Input.getURL(taskUrl)));
}
for (Integer run_id : run_ids) {
Run current = this.openml.runGet(run_id);
runs.put(run_id, current);
Run.Data.File[] outputFiles = current.getOutputFile();
boolean found = false;
for (Run.Data.File f : outputFiles) {
if (f.getName().equals("predictions")) {
found = true;
URL predictionsURL = openml.getOpenmlFileUrl(f.getFileId(), f.getName());
Instances runPredictions =
new Instances(new BufferedReader(Input.getURL(predictionsURL)));
predictions.put(run_id, predictionsToHashMap(runPredictions));
}
}
if (found == false) {
throw new RuntimeException("No prediction files associated with run. Id: " + run_id);
}
if (task_id != current.getTask_id()) {
throw new RuntimeException(
"Runs are not of the same task type: Should be: "
+ this.task_id
+ "; found "
+ current.getTask_id()
+ " (and maybe more)");
}
}
correct =
datasetToHashMap(dataset, TaskInformation.getSourceData(currentTask).getTarget_feature());
}
public void evaluate(int run_id) throws Exception {
Conversion.log("OK", "Process Run", "Start processing run: " + run_id);
final Map<String, Integer> file_ids = new HashMap<String, Integer>();
final Task task;
final DataSetDescription dataset;
PredictionEvaluator predictionEvaluator;
RunEvaluation runevaluation = new RunEvaluation(run_id);
RunTrace trace = null;
JSONArray runJson =
(JSONArray)
apiconnector
.freeQuery("SELECT `task_id` FROM `run` WHERE `rid` = " + run_id)
.get("data");
JSONArray filesJson =
(JSONArray)
apiconnector
.freeQuery("SELECT `field`,`file_id` FROM `runfile` WHERE `source` = " + run_id)
.get("data");
try {
int task_id = ((JSONArray) runJson.get(0)).getInt(0);
task = apiconnector.taskGet(task_id);
Data_set source_data = TaskInformation.getSourceData(task);
Estimation_procedure estimationprocedure = null;
try {
estimationprocedure = TaskInformation.getEstimationProcedure(task);
} catch (Exception e) {
}
Integer dataset_id =
source_data.getLabeled_data_set_id() != null
? source_data.getLabeled_data_set_id()
: source_data.getData_set_id();
for (int i = 0; i < filesJson.length(); ++i) {
String field = ((JSONArray) filesJson.get(i)).getString(0);
int file_index = ((JSONArray) filesJson.get(i)).getInt(1);
file_ids.put(field, file_index);
}
if (file_ids.get("description") == null) {
runevaluation.setError("Run description file not present. ");
File evaluationFile =
Conversion.stringToTempFile(
xstream.toXML(runevaluation), "run_" + run_id + "evaluations", "xml");
RunEvaluate re = apiconnector.runEvaluate(evaluationFile);
Conversion.log("Error", "Process Run", "Run processed, but with error: " + re.getRun_id());
return;
}
if (file_ids.get("predictions") == null
&& file_ids.get("subgroups")
== null) { // TODO: this is currently true, but later on we might have tasks that do
// not require evaluations!
runevaluation.setError("Required output files not present (e.g., arff predictions). ");
File evaluationFile =
Conversion.stringToTempFile(
xstream.toXML(runevaluation), "run_" + run_id + "evaluations", "xml");
RunEvaluate re = apiconnector.runEvaluate(evaluationFile);
Conversion.log("Error", "Process Run", "Run processed, but with error: " + re.getRun_id());
return;
}
if (file_ids.get("trace") != null) {
trace = traceToXML(file_ids.get("trace"), task_id, run_id);
}
String description =
OpenmlConnector.getStringFromUrl(
apiconnector
.getOpenmlFileUrl(
file_ids.get("description"), "Run_" + run_id + "_description.xml")
.toString());
Run run_description = (Run) xstream.fromXML(description);
dataset = apiconnector.dataGet(dataset_id);
Conversion.log("OK", "Process Run", "Start prediction evaluator. ");
// TODO! no string comparisons, do something better
String filename_prefix = "Run_" + run_id + "_";
if (task.getTask_type().equals("Supervised Data Stream Classification")) {
predictionEvaluator =
new EvaluateStreamPredictions(
apiconnector.getOpenmlFileUrl(dataset.getFile_id(), dataset.getName()),
apiconnector.getOpenmlFileUrl(
file_ids.get("predictions"), filename_prefix + "predictions.arff"),
source_data.getTarget_feature());
} else if (task.getTask_type().equals("Survival Analysis")) {
predictionEvaluator =
new EvaluateSurvivalAnalysisPredictions(
task,
apiconnector.getOpenmlFileUrl(dataset.getFile_id(), dataset.getName()),
new URL(estimationprocedure.getData_splits_url()),
apiconnector.getOpenmlFileUrl(
file_ids.get("predictions"), filename_prefix + "predictions.arff"));
} else if (task.getTask_type().equals("Subgroup Discovery")) {
predictionEvaluator = new EvaluateSubgroups();
} else {
predictionEvaluator =
new EvaluateBatchPredictions(
task,
apiconnector.getOpenmlFileUrl(dataset.getFile_id(), dataset.getName()),
new URL(estimationprocedure.getData_splits_url()),
apiconnector.getOpenmlFileUrl(
file_ids.get("predictions"), filename_prefix + "predictions.arff"),
estimationprocedure
.getType()
.equals(EstimationProcedure.estimationProceduresTxt[6]));
}
runevaluation.addEvaluationMeasures(predictionEvaluator.getEvaluationScores());
if (run_description.getOutputEvaluation() != null) {
Conversion.log(
"OK",
"Process Run",
"Start consistency check with user defined measures. (x "
+ run_description.getOutputEvaluation().length
+ ")");
// TODO: This can be done so much faster ...
String warningMessage = "";
boolean warningFound = false;
for (EvaluationScore recorded : run_description.getOutputEvaluation()) {
boolean foundSame = false;
// important check: because of legacy (implementation_id), the flow id might be missing
if (recorded.getFlow() != null && recorded.getFunction() != null) {
for (EvaluationScore calculated : runevaluation.getEvaluation_scores()) {
if (recorded.isSame(calculated)) {
foundSame = true;
if (recorded.sameValue(calculated) == false) {
String offByStr = "";
try {
double diff =
Math.abs(
Double.parseDouble(recorded.getValue())
- Double.parseDouble(calculated.getValue()));
offByStr = " (off by " + diff + ")";
} catch (NumberFormatException nfe) {
}
warningMessage += "Inconsistent Evaluation score: " + recorded + offByStr;
warningFound = true;
}
}
}
if (foundSame == false) {
// give the record the correct sample size
if (recorded.getSample() != null && recorded.getSample_size() == null) {
recorded.setSample_size(
predictionEvaluator
.getPredictionCounter()
.getShadowTypeSize(
recorded.getRepeat(), recorded.getFold(), recorded.getSample()));
}
runevaluation.addEvaluationMeasure(recorded);
}
}
}
if (warningFound) runevaluation.setWarning(warningMessage);
} else {
Conversion.log("OK", "Process Run", "No local evaluation measures to compare to. ");
}
} catch (Exception e) {
e.printStackTrace();
Conversion.log(
"Warning",
"Process Run",
"Unexpected error, will proceed with upload process: " + e.getMessage());
runevaluation.setError(e.getMessage());
}
Conversion.log("OK", "Process Run", "Start uploading results ... ");
try {
String runEvaluation = xstream.toXML(runevaluation);
// System.out.println(runEvaluation);
File evaluationFile =
Conversion.stringToTempFile(runEvaluation, "run_" + run_id + "evaluations", "xml");
RunEvaluate re = apiconnector.runEvaluate(evaluationFile);
if (trace != null) {
String runTrace = xstream.toXML(trace);
// System.out.println(runTrace);
File traceFile = Conversion.stringToTempFile(runTrace, "run_" + run_id + "trace", "xml");
apiconnector.runTraceUpload(traceFile);
}
Conversion.log("OK", "Process Run", "Run processed: " + re.getRun_id());
} catch (Exception e) {
Conversion.log("ERROR", "Process Run", "An error occured during API call: " + e.getMessage());
}
}
public int calculateDifference() {
if (run_ids.size() != 2) {
throw new RuntimeException("Too many runs to compare. Should be 2. ");
}
List<String> values = new ArrayList<String>();
for (Integer run : run_ids) {
values.add(run + "");
}
values.add("none");
ArrayList<Attribute> attributes = new ArrayList<Attribute>();
attributes.add(new Attribute("repeat"));
attributes.add(new Attribute("fold"));
attributes.add(new Attribute("rowid"));
attributes.add(new Attribute("whichCorrect", values));
resultSet = new Instances("difference", attributes, task_splits.numInstances());
for (int i = 0; i < task_splits.numInstances(); ++i) {
Instance current = task_splits.get(i);
boolean test = current.stringValue(task_splits.attribute("type")).equals("TEST");
if (!test) {
continue;
}
Integer row_id = (int) current.value(task_splits.attribute("rowid"));
Integer repeat = (int) current.value(task_splits.attribute("repeat"));
Integer fold = (int) current.value(task_splits.attribute("fold"));
Integer sample = 0;
try {
sample = (int) current.value(task_splits.attribute("sample"));
} catch (Exception e) {
}
String label = null;
boolean difference = false;
String correctLabel = correct.get(row_id);
double whichCorrect = resultSet.attribute("whichCorrect").indexOfValue("none");
for (Integer run_id : run_ids) {
String currentLabel = predictions.get(run_id).get(repeat).get(fold).get(sample).get(row_id);
// check for difference
if (label == null) {
label = currentLabel;
} else if (label.equals(currentLabel) == false) {
difference = true;
}
// check for correct label
if (currentLabel.equals(correctLabel)) {
whichCorrect = resultSet.attribute("whichCorrect").indexOfValue(run_id + "");
}
}
if (difference) {
double[] instance = {repeat, fold, row_id, whichCorrect};
resultSet.add(new DenseInstance(1.0, instance));
}
}
try { // put it in try catch, as admin rights are required.
openml.setupDifferences(
setup_ids.get(0), setup_ids.get(1), task_id, task_splits_size, resultSet.size());
} catch (Exception e) {
}
return resultSet.size();
}
@Override
public void nextIteration() throws Exception {
if (m_CurrentTask == null) {
m_CurrentTask = (Task) getTasks().elementAt(m_DatasetNumber);
((TaskResultProducer) m_ResultProducer).setTask(m_CurrentTask);
this.setRunUpper(TaskInformation.getNumberOfRepeats(m_CurrentTask));
// set classifier. Important, since by alternating between
// regression and
// classification tasks we possibly have resetted the splitevaluator
System.err.println(
((TaskResultProducer) m_ResultProducer).getSplitEvaluator().getClass().toString());
if (m_UsePropertyIterator) {
setProperty(0, m_ResultProducer);
m_CurrentProperty = m_PropertyNumber;
}
}
if (openmlconfig.getAvoidDuplicateRuns()) {
String classifierName =
(String) ((TaskResultProducer) m_ResultProducer).getSplitEvaluatorKey(0);
String classifierOptions =
(String) ((TaskResultProducer) m_ResultProducer).getSplitEvaluatorKey(1);
Integer setupId = WekaAlgorithm.getSetupId(classifierName, classifierOptions, apiconnector);
if (setupId != null) {
List<Integer> taskIds = new ArrayList<Integer>();
taskIds.add(m_CurrentTask.getTask_id());
List<Integer> setupIds = new ArrayList<Integer>();
setupIds.add(setupId);
try {
RunList rl = apiconnector.runList(taskIds, setupIds, null, null);
if (rl.getRuns().length > 0) {
List<Integer> runIds = new ArrayList<Integer>();
for (Run r : rl.getRuns()) {
runIds.add(r.getRun_id());
}
Conversion.log(
"INFO",
"Skip",
"Skipping run "
+ classifierName
+ " (setup #"
+ setupId
+ ") repeat "
+ m_RunNumber
+ ", already available. Run ids: "
+ runIds);
advanceCounters();
return;
}
} catch (Exception e) {
}
}
}
m_ResultProducer.doRun(m_RunNumber);
// before advancing the counters
// check if we want to built a model over the full dataset.
if (m_RunNumber == getRunUpper()) {
if (openmlconfig.getModelFullDataset()) {
((TaskResultProducer) m_ResultProducer).doFullRun();
}
}
advanceCounters();
}