本文整理汇总了Java中org.apache.mahout.cf.taste.neighborhood.UserNeighborhood.getUserNeighborhood方法的典型用法代码示例。如果您正苦于以下问题：Java UserNeighborhood.getUserNeighborhood方法的具体用法？Java UserNeighborhood.getUserNeighborhood怎么用？Java UserNeighborhood.getUserNeighborhood使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.mahout.cf.taste.neighborhood.UserNeighborhood的用法示例。
在下文中一共展示了UserNeighborhood.getUserNeighborhood方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: buildRecommend
import org.apache.mahout.cf.taste.neighborhood.UserNeighborhood; //导入方法依赖的package包/类
public void buildRecommend(String taskName) {
String itemmodelsPath = RecommendConfig.class.getResource("/").getPath() + "itemmodels.csv";
HadoopUtil.download(taskName, itemmodelsPath, true);
try {
DataModel dataModel = new FileDataModel(new File(itemmodelsPath));
UserSimilarity similarity = new SpearmanCorrelationSimilarity(dataModel);
UserNeighborhood userNeighborhood = new ThresholdUserNeighborhood(0.1, similarity, dataModel);
LongPrimitiveIterator userIDs = dataModel.getUserIDs();
while (userIDs.hasNext()) {
Long userID = userIDs.nextLong();
long[] neighborhoods = userNeighborhood.getUserNeighborhood(userID);
for (long neighborhood : neighborhoods) {
double userSimilarity = similarity.userSimilarity(userID, neighborhood);
System.out.printf("(%s,%s,%f)", userID, neighborhood, userSimilarity);
System.out.println();
}
}
} catch (TasteException | IOException e) {
log.error(e);
}
}
示例2: getSimilarStudents
import org.apache.mahout.cf.taste.neighborhood.UserNeighborhood; //导入方法依赖的package包/类
@Override
public List<Student> getSimilarStudents(Student student) {
UserNeighborhood userNeighborhood = studentNeighborhoodStore.getStudentNeighborhood();
long[] userIds;
try {
userIds = userNeighborhood.getUserNeighborhood(student.getId());
} catch (TasteException e) {
return Collections.emptyList();
}
ArrayList<Student> students = new ArrayList<>();
Arrays.stream(userIds).forEach(id -> students.add(studentRepository.findOne(id)));
return students;
}