public HashMap<Integer, Set> generateUserCluster(List<User> userList) {
HashMap<Integer, Set> userCluster;
userCluster = new HashMap<>();
Set<Integer> firstClusterList = new TreeSet<>();
Set<Integer> secondClusterList = new TreeSet<>();
Set<Integer> thirdClusterList = new TreeSet<>();
Set<Integer> fourthClusterList = new TreeSet<>();
Set<Integer> fifthClusterList = new TreeSet<>();
Set<Integer> sixthClusterList = new TreeSet<>();
for (User user : userList) {
// int[] firstActivityCluster = user.getFirstActivityVector();
int[] tempClassifiedTimeVector = user.getClassifiedTimeVector();
int max = 0;
int maxIndex = 0;
for (int i = 0; i < tempClassifiedTimeVector.length; i++) {
if (tempClassifiedTimeVector[i] > max) {
max = tempClassifiedTimeVector[i];
maxIndex = i;
}
}
if (maxIndex == 0) {
Integer tempuserID = user.getId();
firstClusterList.add(tempuserID);
userCluster.put(1, firstClusterList);
} else if (maxIndex == 1) {
int tempuserID = user.getId();
secondClusterList.add(tempuserID);
userCluster.put(2, secondClusterList);
} else if (maxIndex == 2) {
int tempuserID = user.getId();
thirdClusterList.add(tempuserID);
userCluster.put(3, thirdClusterList);
} else if (maxIndex == 3) {
int tempuserID = user.getId();
fourthClusterList.add(tempuserID);
userCluster.put(4, fourthClusterList);
} else if (maxIndex == 4) {
int tempuserID = user.getId();
fifthClusterList.add(tempuserID);
userCluster.put(5, fifthClusterList);
} else if (maxIndex == 5) {
int tempuserID = user.getId();
sixthClusterList.add(tempuserID);
userCluster.put(6, sixthClusterList);
}
// firstActivityCluster[maxIndex] = 1;
}
return userCluster;
}
public List<User> generateUserSecondActivityCluster(List<User> userList) {
for (User user : userList) {
List postList = user.getUserPost();
int requiredPostValue = (int) (0.20 * postList.size());
int[] secondActivityCluster = user.getSecondActivityVector();
int[] tempClassifiedTimeVector = user.getClassifiedTimeVector();
for (int i = 0; i < secondActivityCluster.length; i++) {
if (tempClassifiedTimeVector[i] > requiredPostValue) {
secondActivityCluster[i] = 1;
}
}
user.setSecondActivityVector(secondActivityCluster);
}
return userList;
}
/**
* if user has posted less than or equal to 8 percent of total message then it will be consider as
* his sleeping time
*
* @param userList
* @return
*/
public List<User> generateUserSleepingCluster(List<User> userList) {
for (User user : userList) {
int[] sleepingCluster = user.getSleepingClusterVector();
int[] tempClassifiedTimeVector = user.getClassifiedTimeVector();
List postList = user.getUserPost();
int requiredSleepingPostValue = (int) (0.08 * postList.size());
// int requiredSleepingPostValue = 5;
for (int i = 0; i < sleepingCluster.length; i++) {
if (tempClassifiedTimeVector[i] <= requiredSleepingPostValue) {
sleepingCluster[i] = 1;
}
}
user.setSleepingClusterVector(sleepingCluster);
}
return userList;
}
/**
* @param user @Desc This function populates the "classifiedTimeVector" variable of the
* com.post.parser.model.User class. It gives the total number of posts in the specified time
* range which has been described in getTimeCategory(int hours) in this class.
* @return List<User>
*/
public User setCategorizedTimeToUser(User user) {
ClusterCommons cc = new ClusterCommons();
int[] userTimeVector = user.getClassifiedTimeVector();
for (Posts posts : user.getUserPost()) {
Timestamp ts =
Timestamp.valueOf(
new SimpleDateFormat("yyyy-MM-dd ").format(new Date()).concat(posts.getTime()));
int timeCategory = cc.getTimeCategory(ts.getHours());
if (timeCategory < 6) {
userTimeVector[timeCategory] = userTimeVector[timeCategory] + 1;
}
}
user.setClassifiedTimeVector(userTimeVector);
return user;
}
/*
* Generates first activity user cluster by taking the maximum number
* of posts posted by user
*/
public List<User> generateUserMostActiveCluster(List<User> userList) {
for (User user : userList) {
int[] firstActivityCluster = user.getFirstActivityVector();
int[] tempClassifiedTimeVector = user.getClassifiedTimeVector();
int max = 0;
int maxIndex = 0;
for (int i = 0; i < tempClassifiedTimeVector.length; i++) {
if (tempClassifiedTimeVector[i] > max) {
max = tempClassifiedTimeVector[i];
maxIndex = i;
}
}
firstActivityCluster[maxIndex] = 1;
user.setFirstActivityVector(firstActivityCluster);
}
return userList;
}
