用 WEKA 进行数据挖掘,第 3 部分: 最近邻和服务器端库
2010-06-23 00:00:00 来源:WEB开发网图 3. BMW 最近邻模型
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清单 3. IBk 计算的输出
=== Evaluation on training set ===
=== Summary ===
Correctly Classified Instances 2663 88.7667 %
Incorrectly Classified Instances 337 11.2333 %
Kappa statistic 0.7748
Mean absolute error 0.1326
Root mean squared error 0.2573
Relative absolute error 26.522 %
Root relative squared error 51.462 %
Total Number of Instances 3000
=== Detailed Accuracy By Class ===
TP Rate FP Rate Precision Recall F-Measure ROC Area Class
0.95 0.177 0.847 0.95 0.896 0.972 1
0.823 0.05 0.941 0.823 0.878 0.972 0
Weighted Avg. 0.888 0.114 0.893 0.888 0.887 0.972
=== Confusion Matrix ===
a b <-- classified as
1449 76 | a = 1
261 1214 | b = 0
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