Examples with EntryCallSequenceModel org.iobserve.analysis.data.EntryCallSequenceModel used on opensource projects

Example 6 with EntryCallSequenceModel

use of org.iobserve.analysis.data.EntryCallSequenceModel in project iobserve-analysis by research-iobserve.

the class ClusteringPrePostProcessing method getForEachUserGroupAnEntryCallSequenceModel.

/**
 * It creates for each cluster(user group) its own entryCallSequenceModel. For that, each
 * entryCallSequenceModel receives exclusively the user group's assigned user sessions obtained
 * via the clustering. Additionally each entryCallSequenceModel receives the user group's
 * occurrence likelihood within the considered user sessions.
 *
 * @param clusteringResults
 *            hold the assignments of the clustering and the number of clusters
 * @param callSequenceModel
 *            is the input entryCallSequenceModel that holds all user sessions
 * @return for each cluster one entryCallSequenceModel. Each contains exclusively the cluster's
 *         assigned user sessions
 */
public List<EntryCallSequenceModel> getForEachUserGroupAnEntryCallSequenceModel(final ClusteringResults clusteringResults, final EntryCallSequenceModel callSequenceModel) {
    final int numberOfClusters = clusteringResults.getNumberOfClusters();
    final int[] assignments = clusteringResults.getAssignments();
    final List<EntryCallSequenceModel> entryCallSequenceModels = new ArrayList<>(numberOfClusters);
    final double countOfAbsoluteUserSessions = callSequenceModel.getUserSessions().size();
    for (int k = 0; k < numberOfClusters; k++) {
        final List<UserSession> sessions = new ArrayList<>();
        int instanceNumber = 0;
        double countOfAssigendUserSessions = 0;
        for (final int clusterNum : assignments) {
            if (clusterNum == k) {
                sessions.add(callSequenceModel.getUserSessions().get(instanceNumber));
                countOfAssigendUserSessions++;
            }
            instanceNumber++;
        }
        if (sessions.isEmpty()) {
            continue;
        }
        final double relativeFrequencyOfUserGroup = countOfAssigendUserSessions / countOfAbsoluteUserSessions;
        entryCallSequenceModels.add(new EntryCallSequenceModel(sessions, relativeFrequencyOfUserGroup));
    }
    return entryCallSequenceModels;
}

Example 7 with EntryCallSequenceModel

use of org.iobserve.analysis.data.EntryCallSequenceModel in project iobserve-analysis by research-iobserve.

the class ClusteringPrePostProcessing method setTheWorkloadIntensityForTheEntryCallSequenceModels.

/**
 * It calculates and sets for each entryCallSequenceModel its specific workload intensity. For
 * that it calculates an open or a closed workload and adds it to its entryCallSequenceModel.
 *
 * @param entryCallSequenceModels
 *            are the entryCallSequenceModels of the detected user groups
 * @param isClosedWorkload
 *            states whether a closed or an open workload is requested by the user
 */
public void setTheWorkloadIntensityForTheEntryCallSequenceModels(final List<EntryCallSequenceModel> entryCallSequenceModels, final boolean isClosedWorkload) {
    for (final EntryCallSequenceModel entryCallSequenceModel : entryCallSequenceModels) {
        final WorkloadIntensity workloadIntensity = new WorkloadIntensity();
        if (isClosedWorkload) {
            this.calculateTheNumberOfConcurrentUsers(entryCallSequenceModel.getUserSessions(), workloadIntensity);
        } else {
            this.calculateInterarrivalTime(entryCallSequenceModel.getUserSessions(), workloadIntensity);
        }
        entryCallSequenceModel.setWorkloadIntensity(workloadIntensity);
    }
}

Example 8 with EntryCallSequenceModel

use of org.iobserve.analysis.data.EntryCallSequenceModel in project iobserve-analysis by research-iobserve.

the class ClusteringEvaluation method performClustering.

/**
 * Executes the approach's extraction of user groups process and counts the assignments of user
 * sessions of each user group within each cluster to be able to calculate the misclassification
 * rate. Returns the sum of squared error of the clustering
 *
 * @return the sum of squared error of the executed clustering
 * @throws IOException
 */
private double performClustering() throws IOException {
    final UserGroupExtraction userGroupExtraction = new UserGroupExtraction(this.entryCallSequenceModel, 3, ClusteringEvaluation.VARIANCE_VALUE, true);
    userGroupExtraction.extractUserGroups();
    final List<EntryCallSequenceModel> entryCallSequenceModelsOfUserGroups = userGroupExtraction.getEntryCallSequenceModelsOfUserGroups();
    this.listOfClusterAssignmentsCounter = new ArrayList<>();
    for (int i = 0; i < entryCallSequenceModelsOfUserGroups.size(); i++) {
        final ClusterAssignmentsCounter clusterAssignments = new ClusterAssignmentsCounter();
        this.listOfClusterAssignmentsCounter.add(clusterAssignments);
    }
    int index = 0;
    for (final EntryCallSequenceModel entryCallSequence : entryCallSequenceModelsOfUserGroups) {
        for (final UserSession userSession : entryCallSequence.getUserSessions()) {
            if (userSession.getSessionId().equals(ClusteringEvaluation.CUSTOMER_TAG)) {
                this.listOfClusterAssignmentsCounter.get(index).increaseNumberOfUserGroupCustomer();
            } else if (userSession.getSessionId().equals(ClusteringEvaluation.STORE_MANAGER_TAG)) {
                this.listOfClusterAssignmentsCounter.get(index).increaseNumberOfUserGroupStoreManager();
            } else if (userSession.getSessionId().equals(ClusteringEvaluation.STOCK_MANAGER_TAG)) {
                this.listOfClusterAssignmentsCounter.get(index).increaseNumberOfUserGroupStockManager();
            }
        }
        index++;
    }
    return userGroupExtraction.getClusteringResults().getClusteringMetrics().getSumOfSquaredErrors();
}

Example 9 with EntryCallSequenceModel

use of org.iobserve.analysis.data.EntryCallSequenceModel in project iobserve-analysis by research-iobserve.

the class TEntryCallSequenceWithPCM method execute.

@Override
protected void execute(final PayloadAwareEntryCallEvent event) {
    /**
     * check if operationEvent is from an known object
     */
    if (this.correspondenceModel.containsCorrespondent(event.getClassSignature(), event.getOperationSignature())) {
        // add the event to the corresponding user session
        // in case the user session is not yet available, create one
        final String userSessionId = UserSession.createUserSessionId(event);
        UserSession userSession = this.sessions.get(userSessionId);
        if (userSession == null) {
            userSession = new UserSession(event.getHostname(), event.getSessionId());
            this.sessions.put(userSessionId, userSession);
        }
        // do not sort since TEntryEventSequence will sort any ways
        userSession.add(event, false);
        // collect all user sessions which have more elements as a defined threshold and send
        // them
        // to the next filter
        final List<UserSession> listToSend = this.sessions.values().stream().filter(session -> session.size() > TEntryCallSequenceWithPCM.USER_SESSION_THRESHOLD).collect(Collectors.toList());
        if (!listToSend.isEmpty()) {
            this.outputPort.send(new EntryCallSequenceModel(listToSend));
        }
    }
}

Example 10 with EntryCallSequenceModel

use of org.iobserve.analysis.data.EntryCallSequenceModel in project iobserve-analysis by research-iobserve.

the class TBehaviorModelPreperation method execute.

@Override
protected void execute(final Object object) {
    if (object instanceof EntryCallSequenceModel) {
        final EntryCallSequenceModel entryCallSequenceModel = (EntryCallSequenceModel) object;
        this.executeEntryCallSequenceModel(entryCallSequenceModel);
    } else if (object instanceof BehaviorModelTable) {
        final BehaviorModelTable modelTable = (BehaviorModelTable) object;
        this.executeBehaviorModelTable(modelTable);
    } else {
        TBehaviorModelPreperation.LOGGER.error("input is nether of type EntryCallSequenceModel nor BehaviorModelTable");
    }
}