本文整理汇总了Java中org.apache.mahout.cf.taste.model.PreferenceArray.getIDs方法的典型用法代码示例。如果您正苦于以下问题：Java PreferenceArray.getIDs方法的具体用法？Java PreferenceArray.getIDs怎么用？Java PreferenceArray.getIDs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.model.PreferenceArray的用法示例。
在下文中一共展示了PreferenceArray.getIDs方法的5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: intializeDelegate
import org.apache.mahout.cf.taste.model.PreferenceArray; //导入方法依赖的package包/类
private void intializeDelegate() {
try {
//iterate over all user ids
LongPrimitiveIterator it = easyrecDataModelDelegate.getUserIDs();
FastByIDMap<PreferenceArray> preferences = new FastByIDMap<PreferenceArray>(easyrecDataModelDelegate.getNumUsers());
FastByIDMap<FastByIDMap<Long>> timestamps = new FastByIDMap<FastByIDMap<Long>>(easyrecDataModelDelegate.getNumUsers());
while (it.hasNext()) {
Long userId = it.next();
//get preferences for each user
PreferenceArray prefs = easyrecDataModelDelegate.getPreferencesFromUser(userId);
preferences.put(userId,prefs);
//get preference times for each user
FastByIDMap<Long> timestampsForUser = new FastByIDMap<Long>(prefs.getIDs().length);
for (Long itemId: prefs.getIDs()) {
timestampsForUser.put(itemId,easyrecDataModelDelegate.getPreferenceTime(userId, itemId));
}
timestamps.put(userId, timestampsForUser);
}
//generate GenericDataModel
setMaxPreference(easyrecDataModelDelegate.getMaxPreference());
setMinPreference(easyrecDataModelDelegate.getMinPreference());
this.inMemoryDelegate = new GenericDataModel(preferences,timestamps);
} catch (TasteException e) {
logger.warn("caught exception while reading preference data", e);
}
}
示例2: testEasyrecDataModel_getPreferencesForItem
import org.apache.mahout.cf.taste.model.PreferenceArray; //导入方法依赖的package包/类
@Test
public void testEasyrecDataModel_getPreferencesForItem() throws TasteException {
EasyrecDataModel easyrecDataModel = new EasyrecDataModel(TENANT_ID, RATE_ACTION_TYPE_ID, HAS_RATING_VALUES, mahoutDataModelMappingDAO);
PreferenceArray preferences = easyrecDataModel.getPreferencesForItem(1);
String ids = "";
for (long id : preferences.getIDs()) {
ids += id;
}
assertEquals("12", ids);
}
示例3: testEasyrecDataModel_getPreferencesFromUser
import org.apache.mahout.cf.taste.model.PreferenceArray; //导入方法依赖的package包/类
@Test
public void testEasyrecDataModel_getPreferencesFromUser() throws TasteException {
EasyrecDataModel easyrecDataModel = new EasyrecDataModel(TENANT_ID, RATE_ACTION_TYPE_ID, HAS_RATING_VALUES, mahoutDataModelMappingDAO);
PreferenceArray preferences = easyrecDataModel.getPreferencesFromUser(1);
String ids = "";
for (long id : preferences.getIDs()) {
ids += id;
}
assertEquals("123", ids);
}
示例4: testEasyrecDataModel_getBooleanPreferencesForItem
import org.apache.mahout.cf.taste.model.PreferenceArray; //导入方法依赖的package包/类
@Test
public void testEasyrecDataModel_getBooleanPreferencesForItem() throws TasteException {
EasyrecDataModel easyrecDataModel = new EasyrecDataModel(TENANT_ID, BUY_ACTION_TYPE_ID, HAS_NO_RATING_VALUES, mahoutDataModelMappingDAO);
PreferenceArray preferences = easyrecDataModel.getPreferencesForItem(10);
String ids = "";
for (long id : preferences.getIDs()) {
ids += id;
}
assertEquals("12", ids);
}
示例5: testEasyrecDataModel_getBooleanPreferencesFromUser
import org.apache.mahout.cf.taste.model.PreferenceArray; //导入方法依赖的package包/类
@Test
public void testEasyrecDataModel_getBooleanPreferencesFromUser() throws TasteException {
EasyrecDataModel easyrecDataModel = new EasyrecDataModel(TENANT_ID, BUY_ACTION_TYPE_ID, HAS_NO_RATING_VALUES, mahoutDataModelMappingDAO);
PreferenceArray preferences = easyrecDataModel.getPreferencesFromUser(1);
String ids = "";
for (long id : preferences.getIDs()) {
ids += id;
}
assertEquals("102030", ids);
}