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資源簡介

本資源是推薦系統中最基本且最精但的協同過濾推薦算法實現，包括數據集，以及算法的評價指標MAE的計算，數據集采用MovieLens中兩個數據集進行測試，需要別的數據集可以根據自己需要添加，只需修改Base.java文件中的配置即可，本程序配備一個readme文件，里面有程序的運行介紹，程序注釋詳細，希望對大家有幫助。

資源截圖

代碼片段和文件信息 



public?class?Application?extends?PrintArray?implements?base?{

	public?static?void?main（String[]?args）?{
		
		int[][]?user_movie_base?=?new?int[PREFROWCOUNT][COLUMNCOUNT];
		user_movie_base?=?new?ReadFile（）.readFile（base_LINE?base）;?//?base中有943個用戶對1682個項目的評分
																	//?*/
		int[][]?test?=?new?ReadFile（）.readFile（TEST_LINE?TEST）;?//?462個用戶的實際評分
		double[][]?similarityMatrix?=?new?ProduceSimilarityMatrix（）
				.produceSimilarityMatrix（user_movie_base）;
		double[][]?matrix?=?GetScore
				.getScore（user_movie_base?similarityMatrix）;
		double[]?mae?=?new?ProduceMAE（）.produceMAE（matrix?test）;
		double?Mae?=?0.0?MAE?=?0.0;
		for?（int?k?=?0;?k?			Mae?+=?mae[k];
		}
		MAE?=?Mae?/?TESTROWCOUNT;
		System.out.println（“MAE=:“?+?MAE）;
	}

}

?屬性????????????大小?????日期????時間???名稱
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?????文件????????232??2014-05-14?20:38??Collaborative?Filtering\.classpath

?????文件????????399??2014-05-14?20:38??Collaborative?Filtering\.project

?????文件???????1396??2014-05-14?20:47??Collaborative?Filtering\bin\Application.class

?????文件????????409??2014-05-14?20:47??Collaborative?Filtering\bin\base.class

?????文件???????1004??2014-05-14?20:38??Collaborative?Filtering\bin\ComputeSimilarity.class

?????文件???????1264??2014-05-14?20:42??Collaborative?Filtering\bin\FindKNeighbors.class

?????文件???????1419??2014-05-14?20:42??Collaborative?Filtering\bin\GetScore.class

?????文件???????1456??2014-05-14?20:38??Collaborative?Filtering\bin\PearsonCorrelation.class

?????文件???????1425??2014-05-14?20:38??Collaborative?Filtering\bin\PrintArray.class

?????文件????????772??2014-05-14?20:47??Collaborative?Filtering\bin\ProduceMAE.class

?????文件????????735??2014-05-14?20:38??Collaborative?Filtering\bin\ProduceSimilarityMatrix.class

?????文件???????1596??2014-05-14?20:38??Collaborative?Filtering\bin\ReadFile.class

?????文件????????260??2014-05-14?20:48??Collaborative?Filtering\readme.txt

?????文件????????839??2014-05-14?20:39??Collaborative?Filtering\src\Application.java

?????文件????????644??2014-05-14?20:47??Collaborative?Filtering\src\base.java

?????文件????????533??2014-05-14?20:38??Collaborative?Filtering\src\ComputeSimilarity.java

?????文件???????1249??2014-05-14?20:38??Collaborative?Filtering\src\FindKNeighbors.java

?????文件???????1294??2014-05-14?20:38??Collaborative?Filtering\src\GetScore.java

?????文件????????825??2014-05-14?20:38??Collaborative?Filtering\src\PearsonCorrelation.java

?????文件????????891??2014-05-14?20:38??Collaborative?Filtering\src\PrintArray.java

?????文件????????515??2014-05-14?20:38??Collaborative?Filtering\src\ProduceMAE.java

?????文件????????531??2014-05-14?20:38??Collaborative?Filtering\src\ProduceSimilarityMatrix.java

?????文件???????1266??2014-05-14?20:38??Collaborative?Filtering\src\ReadFile.java

?????文件????1586544??2013-12-13?20:23??Collaborative?Filtering\u1.base

?????文件?????392629??2013-12-13?20:23??Collaborative?Filtering\u1.test

?????目錄??????????0??2014-05-14?20:49??Collaborative?Filtering\bin

?????目錄??????????0??2014-05-14?20:49??Collaborative?Filtering\src

?????目錄??????????0??2014-05-14?20:49??Collaborative?Filtering

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??????????????2000127????????????????????28

............此處省略1個文件信息

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