2011-04-24 50 views
0

我後運行:象夫org.apache.mahout.cf.taste.example.jester.JesterRecommenderEvaluatorRunner我在哪裏查看Mahout的小丑示例的結果?

mahout org.apache.mahout.cf.taste.example.jester.JesterRecommenderEvaluatorRunner 
Running on hadoop, using HADOOP_HOME=/usr 
HADOOP_CONF_DIR=/etc/hadoop/conf 
11/04/23 23:52:18 WARN driver.MahoutDriver: No org.apache.mahout.cf.taste.example.jester.JesterRecommenderEvaluatorRunner.props found on classpath, will use command-line arguments only 
11/04/23 23:52:18 INFO file.FileDataModel: Creating FileDataModel for file src/main/java/org/apache/mahout/cf/taste/example/jester/jester-data-1.csv 
11/04/23 23:52:18 INFO file.FileDataModel: Reading file info... 
11/04/23 23:52:18 INFO file.FileDataModel: Read lines: 7074 
11/04/23 23:52:18 INFO model.GenericDataModel: Processed 7074 users 
11/04/23 23:52:19 INFO eval.AbstractDifferenceRecommenderEvaluator: Beginning evaluation using 0.9 of FileDataModel[dataFile:/usr/local/mahout-distribution-0.4/examples/src/main/java/org/apache/mahout/cf/taste/example/jester/jester-data-1.csv] 
11/04/23 23:52:19 INFO model.GenericDataModel: Processed 2155 users 
11/04/23 23:52:19 INFO slopeone.MemoryDiffStorage: Building average diffs... 
11/04/23 23:52:19 INFO eval.AbstractDifferenceRecommenderEvaluator: Beginning evaluation of 855 users 
11/04/23 23:52:19 INFO eval.AbstractDifferenceRecommenderEvaluator: Starting timing of 855 tasks in 4 threads 
11/04/23 23:52:19 INFO eval.AbstractDifferenceRecommenderEvaluator: Average time per recommendation: 2ms 
11/04/23 23:52:19 INFO eval.AbstractDifferenceRecommenderEvaluator: Approximate memory used: 9MB/56MB 
11/04/23 23:52:19 INFO eval.AbstractDifferenceRecommenderEvaluator: Unable to recommend in 0 cases 
11/04/23 23:52:19 INFO eval.AbstractDifferenceRecommenderEvaluator: Evaluation result: 154472.97849261735 
11/04/23 23:52:19 INFO jester.JesterRecommenderEvaluatorRunner: 154472.97849261735 
11/04/23 23:52:19 INFO driver.MahoutDriver: Program took 740 ms 

不知道從哪裏檢查結果?

謝謝!

回答

1

的結果。您正在對一個推薦器實施進行評估,其中一個評估推薦器預測評級的效果。它顯示了實際評分和預測評分之間的平均差異。

你要找什麼結果?

但是這裏有些東西看起來很不對:154472.97849261735太大了。當我運行它時,我得到的平均差爲3.41(10分)。

我會用latest code from Subversion運行,理想情況下。 0.4是6個月大,雖然我不知道這裏有任何錯誤。你也不需要通過驅動程序來運行它,儘管它起作用。

真的我懷疑你的jester-data-1.csv文件是錯誤的。最好在[email protected]上跟進。

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