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());
}
}