package?com.xie;

import?org.apache.mahout.cf.taste.common.TasteException;
import?org.apache.mahout.cf.taste.impl.common.LongPrimitiveIterator;
import?org.apache.mahout.cf.taste.impl.model.file.*;??
import?org.apache.mahout.cf.taste.impl.neighborhood.*;??
import?org.apache.mahout.cf.taste.impl.recommender.*;??
import?org.apache.mahout.cf.taste.impl.similarity.*;??
import?org.apache.mahout.cf.taste.model.*;???
import?org.apache.mahout.cf.taste.recommender.*;??
import?org.apache.mahout.cf.taste.similarity.*;??

import?java.io.*;??
import?java.util.*;??


public?class?Userbased?{

????final?static?int?NEIGHBORHOOD_NUM?=?2;
????final?static?int?RECOMMENDER_NUM?=?3;

????public?static?void?main（String[]?args）?throws?IOException?TasteException?{
????????String?file?=?“src/data/testCF.csv“;
????????DataModel?model?=?new?FileDataModel（new?File（file））;
????????UserSimilarity?user?=?new?EuclideanDistanceSimilarity（model）;
????????NearestNUserNeighborhood?neighbor?=?new?NearestNUserNeighborhood（NEIGHBORHOOD_NUM?user?model）;
????????Recommender?r?=?new?GenericUserbasedRecommender（model?neighbor?user）;
????????LongPrimitiveIterator?iter?=?model.getUserIDs（）;

????????while?（iter.hasNext（））?{
????????????long?uid?=?iter.nextLong（）;
????????????List?list?=?r.recommend（uid?RECOMMENDER_NUM）;
????????????System.out.printf（“uid:%s“?uid）;
????????????for?（RecommendedItem?ritem?:?list）?{
????????????????System.out.printf（“（%s%f）“?ritem.getItemID（）?ritem.getValue（））;
????????????}
????????????System.out.println（）;
????????}
????}
}?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????736??2015-12-23?21:28??ChartTwo\.classpath

?????文件????????384??2015-12-23?21:13??ChartTwo\.project

?????文件????????598??2015-12-23?21:13??ChartTwo\.settings\org.eclipse.jdt.core.prefs

?????文件???????3396??2015-12-23?21:29??ChartTwo\bin\com\xie\Userbased.class

?????文件????????230??2015-12-23?19:27??ChartTwo\bin\data\testCF.csv

?????文件??????61829??2014-07-05?20:11??ChartTwo\Lib\commons-logging-1.2.jar

?????文件????2038489??2015-04-14?14:35??ChartTwo\Lib\commons-math3-3.5.jar

?????文件????2256213??2015-12-23?20:45??ChartTwo\Lib\guava-18.0.jar

?????文件????1470402??2014-04-09?12:28??ChartTwo\Lib\mahout-core-0.9.jar

?????文件????1612934??2014-04-09?12:26??ChartTwo\Lib\mahout-math-0.9.jar

?????文件??????25496??2010-07-05?22:25??ChartTwo\Lib\slf4j-api-1.6.1.jar

?????文件???????7728??2010-07-05?22:25??ChartTwo\Lib\slf4j-jcl-1.6.1.jar

?????文件???????1602??2015-12-23?21:29??ChartTwo\src\com\xie\Userbased.java

?????文件????????230??2015-12-23?19:27??ChartTwo\src\data\testCF.csv

?????目錄??????????0??2015-12-23?21:29??ChartTwo\bin\com\xie

?????目錄??????????0??2015-12-23?21:29??ChartTwo\src\com\xie

?????目錄??????????0??2015-12-23?21:28??ChartTwo\bin\com

?????目錄??????????0??2015-12-23?21:28??ChartTwo\bin\data

?????目錄??????????0??2015-12-23?21:14??ChartTwo\src\com

?????目錄??????????0??2015-12-23?21:27??ChartTwo\src\data

?????目錄??????????0??2015-12-23?21:13??ChartTwo\.settings

?????目錄??????????0??2015-12-23?21:28??ChartTwo\bin

?????目錄??????????0??2015-12-23?21:21??ChartTwo\Lib

?????目錄??????????0??2015-12-23?21:27??ChartTwo\src

?????目錄??????????0??2015-12-23?21:14??ChartTwo

-----------?---------??----------?-----??----

??????????????7480267????????????????????25